H SYSTEM CIRCUITS
2006 TOYOTA TACOMA ELECTRICAL WIRING DIAGRAM SYSTEM CIRCUITS ABS (w/ VSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ABS (w/o VSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Accessory Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Audio System (Built–in Type Amplifier) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Audio System (Separate Type Amplifier) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auto LSD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Automatic Glare–Resistant EC Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Back–Up Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cigarette Lighter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Combination Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cruise Control (1GR–FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cruise Control (2TR–FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Door Lock Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Downhill Assist Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electronically Controlled Transmission and A/T Indicator (1GR–FE) . . . . Electronically Controlled Transmission and A/T Indicator (2TR–FE) . . . . . Engine Control (1GR–FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Control (2TR–FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Immobiliser System (1GR–FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Immobiliser System (2TR–FE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front Fog Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Headlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hill–Start Assist Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ignition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Illumination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Interior Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Key Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Light Auto Turn Off System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Multi Mode 4WD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Multiplex Communication System (CAN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Outlet (115V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Outlet (12V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rear Differential Lock (2WD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rear Differential Lock (4WD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Remote Control Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Seat Belt Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Shift Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stop Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Taillight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
62 TOYOTA TACOMA (EM01D0U)
Page 172 182 234 268 260 256 172 230 126 76 244 250 262 158 164 202 172 144 152 78 90 102 106 116 110 172 238 72 122 130 142 138 212 170 240 244 64 196 218 212 228 232 226 187 68 128 118
H
Tire Pressure Warning System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TRAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Turn Signal and Hazard Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wiper and Washer (w/ INT Time SW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wiper and Washer (w/o INT Time SW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wireless Door Lock Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page 252 172 246 134 172 222 224 206
63 TOYOTA TACOMA (EM01D0U)
Power Source 50A HEATER
30A TOWING TAIL L
2
2
1
1
1
1
2
2
1
1
2
2
2
2
1
1
1
1
100A AC SKT 1 2D
2
2
2
L
L
2
B–Y
2
2
B
2
50A AM1 2
W–L
2
W–L
G 1(A), (B), (C) Generator
B
R
30A TOWING BRK
15A FR FOG G
R
30A BATT CHG
7. 5A OBD Y
2
50A J/B
10A STOP G–W
2
B 1 A (∗3) 1 B (∗4) 1 C (∗7)
140A ALT (∗1) 120A ALT (∗2) 1 2C
1
1 2E
2
B–L(∗3) W(∗4, ∗7)
B
10A ETCS LG
2
2
30A AM2 1
1
Battery
2
2
1
1
1
1
B(∗5) B(∗5)
2
2
R(∗5) 2
Y(∗6)
2
20A EFI
10A HORN W–G
W–R
W–R
2
30A ABS NO. 2
7. 5A ALT–S W
2
1 2F 2 2F
2
L
2
L
HEAD Relay
2
1
5
3
W
2
50A ABS NO. 1 R(∗6)
2
2
1
30A TOWING GR
2
2
R
15A A/F HEATER 1
1
2
2
15A TRN–HAZ B–Y
2
2
1
2
2
2
2
1
2
2
R
7. 5A DOME
Short Pin
1
1
1
1
2
2
W
10A RADIO NO. 1
50A A/PMP W
B–R
7. 5A ECU–B
30A RADIO NO. 2 W–L
R
2
64 TOYOTA TACOMA (EM01D0U)
2
2
L–Y
LG
2
HEATER Relay 1 2
Y
2
10A A/C R
2
5
3
B–Y
2
4
2
G–Y
TAIL Relay
6 1A
L
1 2 3 4 5 6 7
2
W–B
2
∗ ∗ ∗ ∗ ∗ ∗ ∗
1
2
: w/ Trailer Towing : w/o Trailer Towing : 1GR–FE 130A Type Alternator : 1GR–FE 80A Type Alternator : w/ VSC : w/o VSC : 2TR–FE
3
5
1
2
10A TAIL
30A D FR P/W 1
P/W Relay
2
20A DR LCK
3
5
20A P FR P/W
15A PWR OUTLET
1
2
20A D RR P/W
20A P RR P/W W–L
5 1A
7. 5A ACC
10A IG1
30A WIP ACC 2
W–G
IG1 1
L–Y
ST1 3
B–W
IG2 6
B–R
ST2 7
G–B
4 AM1
W–R
5 AM2
4 1A
20A 4WD
10A IG1 NO. 2
10A WSH
7. 5A GAUGE
I7 Ignition SW
B–R
9 1B
15A IGN
EFI Relay L
2 G–W
2
5
3
1
2
2
2
7. 5A STA
B B–W
R
2
1
2
3
5
2
2
2
V
10A EFI NO. 2
DIM Relay 2
2
1
W–B
B R
2
2
1
2 2
L–W
Y–B 10A HEAD (HI LH) R–B
2
1
2 2
P
4 10A HEAD (HI RH) R–B
2
1
2 2
R–W
10A HEAD (LO LH) 2
W
2
1
2 2
R–Y
10A HEAD (LO RH) W
2
1
2 2
R–B
65 TOYOTA TACOMA (EM01D0U)
Power Source : Parts Location Code G1
See Page A
40 (1GR–FE)
B
40 (1GR–FE)
Code G1
See Page C
I7
Code
42 (2TR–FE) 45
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1A 1B 2C 2D 2E 2F
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
24
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
24 (1GR–FE)
Engine No.2 Wire and Engine Room J/B (Engine Compartment Left)
24 (2TR–FE)
Engine Wire and Engine Room J/B (Engine Compartment Left)
25
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
66 TOYOTA TACOMA (EM01D0U)
See Page
Memo
67 TOYOTA TACOMA (EM01D0U)
Starting V(∗4 A/T) L–Y
ACC 4 AM1
5 AM2
IG1 1
L–Y
B–W
ST1 3
B–W
V(∗3 A/T)
IG2
E 5(B), E 6(C), E 8(D) Engine Control Module
ST2 7
G–B
W–L
W–R
I7 Ignition SW
2
8 B (∗3) 30 D (∗4) NSW STA 11 C (∗3) 12 D (∗4)
2
2
(∗3)
B–Y
2
11 IH1
(∗4)
1 B–Y
5
STA Relay
1
2 140A ALT (∗1) 120A ALT (∗2)
3
2
Y–G
2
1
8 2A
5 2B
4 2B
7 2A
2
W–B
1
30A AM2
50A AM1
2
(∗4)
B–Y
B–Y
2
1 2C
1 C
M
S 5(A), (B), S 6(C) Starter
26 2A
B–Y
(M/T)
B–Y
(A/T)
(∗5) (∗5)
B–R
7 IH1
B–Y
1 A (∗3) 1 B (∗4)
W–B
B
Y–G
B–Y
6 EB1
33 2A B–Y(M/T)
Battery
EA
B–Y(∗5)
W–B
W–B
W–B
B–Y(A/T)
EB
68 TOYOTA TACOMA (EM01D0U)
V(∗4 A/T) ∗ ∗ ∗ ∗ ∗
L–Y
: w/ Trailer Towing : w/o Trailer Towing : 1GR–FE : 2TR–FE : 4WD M/T
L–Y
B–W
1 2 3 4 5
V(∗3 A/T)
2
4 1A
1 10A IG1 NO. 2
7. 5A STA
2 2
V
LG
(∗5)
14 1C
6 2A
13 DC
3 2B
15 DB
5 2A
V (M/T)
L–B
9 PB
V
1
11 PA
3 PD
(∗5)
LG
2
3
+S
IG
(A/T)
12 DD
(M/T)
18 PB
L–B
V (∗5)
4 DD
4
L
P1 Park/Neutral Position SW
C8 Clutch Start SW
V
(M/T)
2
(∗4 A/T)
V
V
D6 Diode (Clutch Start)
(∗3 A/T)
1
2
B
P
–S
E
N
4
1
C7 Clutch Start Cancel SW
(∗5)
(∗5)
W–B
B–Y
B–Y
(A/T)
B–Y
(M/T)
5
B–Y(M/T) 20 A
J 4(A), J 5(B) Junction Connector
B–Y(A/T) B–Y(∗5)
(∗5)
W–B
15 B
IC
69 TOYOTA TACOMA (EM01D0U)
Starting : Parts Location Code
See Page
Code
44
C8
44
D6
44
J4
A
45
J5
B
45
E5
B
44
E6
C
44
E8
See Page
C7
D I7
P1
Code
44 45
41 (1GR–FE)
See Page
P1 S5 S6
43 (2TR–FE) A
41 (1GR–FE)
B
43 (2TR–FE)
C
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1A
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
2A
24
Engine Room J/B and
2B
24
Engine Wire and Engine Room J/B (Engine Compartment Left)
2C
24
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
DB
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
1C
DC DD PA PB PD
: Connector Joining Wire Harness and Wire Harness Code EB1 IH1
See Page 52 (1GR–FE) 53 (2TR–FE) 55
Joining Wire Harness and Wire Harness (Connector Location) Engine No.2 Wire and Engine Room Main Wire (Inside of Engine Room R/B) Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
: Ground Points Code EA EB IC
See Page 52 (1GR–FE) 53 (2TR–FE) 52 (1GR–FE) 53 (2TR–FE) 54
Ground Points Location Front Right Fender Front Left Fender Instrument Panel Brace RH
70 TOYOTA TACOMA (EM01D0U)
41 (1GR–FE) 43 (2TR–FE)
Memo
71 TOYOTA TACOMA (EM01D0U)
Ignition
IG2 6
E 4(A) Engine Control Module B–R
ST2
I7 Ignition SW
IGT1 9 1B
IGT2
P–L
B–R
10 1B
IGT3 10 A (1GR–FE) 15 A (2TR–FE)
9 A 16 A
P
W–R
8 A 17 A
LG
5 AM2
2
2 4 EA1
B–R
30A AM2
1 1 2C
B–R
B–R
B–R
W–B
1
LG
B–R
3 IGT2
3
+B
GND
IGF
GND
IGF
GND
IGF
4
2
4
2
4
2
W–B
W–R
W–B
W–R
IGT3
W–R
I3 Ignition Coil (No. 3)
+B
P–L
B–R
1
(2TR–FE)
W–B
(1GR–FE)
2
3 IGT1
W–B
I1 Ignition Coil (No. 1)
Battery
+B
I2 Ignition Coil (No. 2)
1
P
B–R
1
N1 Noise Filter (Ignition)
B–R
B
B–R
W–R W–R W–R
W–B
W–B
W–B
W–B W–B
EC
ED
EH
72 TOYOTA TACOMA (EM01D0U)
(1GR–FE)
(2TR–FE)
EE
E 4(A) Engine Control Module
IGT5
IGF1 24 A (1GR–FE) 23 A (2TR–FE)
W–R
G
(1GR–FE)
G
GR
(1GR–FE)
GR
13 A
(1GR–FE)
LG–B B–R
IGT6
12 A
(1GR–FE)
IGT4 11 A 14 A
B–R
B–R
(1GR–FE)
IGF
4
2
W–B
GND
W–R
2
IGT6
(1GR–FE)
IGF
4
3
+B
(1GR–FE)
GND
W–R
W–R
1
IGT5
(1GR–FE)
2
W–B
IGF
4
(1GR–FE)
GND
3
+B
I6 Ignition Coil (No. 6)
B–R
1
(1GR–FE)
3 IGT4
W–B
I4 Ignition Coil (No. 4)
+B
I5 Ignition Coil (No. 5)
1
LG–B
B–R
(1GR–FE)
9 W–R(1GR–FE)
10
W–R
11
W–R
W–R
12
W–R
W–R
13
W–R
W–R
5
W–B
W–B (1GR–FE)
4
W–R
J12 Junction Connector
73 TOYOTA TACOMA (EM01D0U)
Ignition : Parts Location Code E4
See Page A
Code
44
I3
41 (1GR–FE)
I1
43 (2TR–FE)
I4
41 (1GR–FE)
I2
43 (2TR–FE)
I5
See Page 41 (1GR–FE)
Code
41 (1GR–FE)
43 (2TR–FE)
I7
45
41 (1GR–FE)
J12
45
43 (2TR–FE) 41 (1GR–FE)
N1
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
1B
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
2C
24
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
: Connector Joining Wire Harness and Wire Harness Code EA1
See Page 52 (1GR–FE) 53 (2TR–FE)
Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B)
: Ground Points Code EC ED EE EH
See Page
See Page
I6
Ground Points Location
52 (1GR–FE)
Near the Front Differential
52 (1GR–FE)
Rear Side of Right Bank Cylinder Block
53 (2TR–FE)
Rear Side of Cylinder Block
74 TOYOTA TACOMA (EM01D0U)
41 (1GR–FE) 43 (2TR–FE)
Memo
75 TOYOTA TACOMA (EM01D0U)
Charging
(IG)
(IG) 10A IG1 NO. 2
7. 5A GAUGE
3 1J
(IG)
9 1J
2
P
(∗4)
7 PF
14 DD
11 DB
4 DC
15 PA
W
13 DC
(∗4)
12 DB
W
GR
1 DB
L
(∗4)
W
(∗4)
W
(∗3)
P
(∗4)
LG
3 EB1
(∗3)
GR
2 IH1
(∗4)
GR
(∗3)
2 EB1
11 EA1
B–L(∗5)
B
5 EB1
W(∗4, ∗6)
LG
(∗3)
GR
GR
1 2C
(∗4)
1
(∗3)
1
10
GR
2 7. 5A ALT–S
140A ALT (∗1) 120A ALT (∗2)
2
ALT
16
(∗3)
1 2E
LG
L 18
E4 Engine Control Module (∗3)
C9 Combination Meter
B5 Body ECU
Charge
21
W(∗3)
W(∗4)
W(∗4, ∗6)
B–L(∗5)
V
14 1C
10A IG1
Battery
∗ ∗ ∗ ∗ ∗ ∗
1 2 3 4 5 6
4 D
2 D
1 D
3 D
L
IG
S
M
: w/ Trailer Towing : w/o Trailer Towing : 1GR–FE : 2TR–FE : 1GR–FE 130A Type Alternator : 1GR–FE 80A Type Alternator
IC Regulator
G 1(A), (B), (C), G 2(D) Generator
76 TOYOTA TACOMA (EM01D0U)
1 A (∗5) 1 B (∗6) 1 C (∗4) B
: Parts Location Code
See Page
B5
44
C9
44
E4
44
Code G1
See Page A
40 (1GR–FE)
B
40 (1GR–FE)
C
42 (2TR–FE)
Code G2
See Page D
40 (1GR–FE) 42 (2TR–FE)
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
1C
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1J
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2C
24
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
24 (1GR–FE)
Engine No.2 Wire and Engine Room J/B (Engine Compartment Left)
24 (2TR–FE)
Engine Wire and Engine Room J/B (Engine Compartment Left)
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
PA
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
PF
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
2E DB DC DD
: Connector Joining Wire Harness and Wire Harness Code
See Page
EA1
53 (2TR–FE)
Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B)
EB1
52 (1GR–FE)
Engine No.2 Wire and Engine Room Main Wire (Inside of Engine Room R/B)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
77 TOYOTA TACOMA (EM01D0U)
Engine Control for 1GR–FE (BAT)
(BAT) 15A A/F HEATER
20A EFI
2
15A IGN
2 2
2 13 1C
B–R
L 5 AM2
(IG)
IG2 6
15 1I B–R O
O
ST2
B–R
B–R
L
9 1B
7 EA1
I7 Ignition SW
L G–W
2
11 1B
1
3
2
2
1
5
2
3
O
B
B–R
L–W 2
A/F HEATER Relay
5 EFI Relay
B–R
2
2
2
5
1
3
2
C/OPN Relay
W–R
L
G–W
B–W
2 2
2
2
W
W–B
2 11 2A 30 2A
31 2A 14 IA1
10 2A 33 2A
B
2 Battery
B
9 2A
W–B
10A EFI NO. 2
B
1
L–B
1 2C
L–B
B
1
2
B
W–B
30A AM2
B
B–W
2
2
L–B
2
2
L–W
L–B
W–B
B
L–W L–W
EA
W–B
W–B
W
EB
78 TOYOTA TACOMA (EM01D0U)
(ST)
7. 5A STA
2
V
2
B–R
B–R
O L G–W
L
G–W
V
B–W
6 2A
L–B
L
O
V
(A/T)
NSW
8 E
3 E
9 E
MREL
BATT
IGSW
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E) Engine Control Module
4 DD
5
+B
30 C
10 E
1 E
L–B
2
FC
11 C
Y–R
STA 2
2
18 PB 11 PA
8 B
B–Y
1
V
2
4
1 IA1
3 2B
(A/T)
3
1
V
2
2
(M/T)
FUEL PUMP Relay
2
D6 Diode (Clutch Start)
V (M/T)
10 IA1
5 2A
G–W
B–W
FPR
+B2 2 E
9 PB
B
P1 Park/Neutral Position SW
B
V
(A/T)
3 1H
2 1H
L
P N
2
5
B–Y
(A/T)
L–B
(M/T)
B
1
B–Y M
4 2B
5
W–B
1
4
4
(M/T)
B–R 2
F19 Fuel Suction Pump and Gage Assembly
Y–R
1 EA1
F11 Fuel Pump Resistor
8 IB1
C8 Clutch Start SW
B–R
B–R
B–Y
Y–R
12 DD
5 2B
7 2A
L–B 6 1B B
B
L–W
L–W
L–W
W
W
W–B
L–W
BD
79 TOYOTA TACOMA (EM01D0U)
18 2A 14 2A 15 2A 6 2B
L–W
L–W
L–W
L–W
L–W
L–W
V 4(A) VSV (Purge)
1 30 A
1 A VG
8 2B 9 2B 10 2B 29 A E2G
2 2 A 3 A 2 A 4 A
7 2B 22 A THA
5 B
E2G THA
+B E2
1 A 5 A 2
+B
OC1–
HT2B
OC2+
33 B
OX2B
4 E2
BR
W
80
TOYOTA TACOMA (EM01D0U)
BR
18 A 1 A
G
VG OC1+
W
PRG # 60
Y
L
G–Y
L–B
L–W
L–R
G–W
LG
F 7(A) Fuel Injector (No. 3)
F8 Fuel Injector (No. 4)
F9 Fuel Injector (No. 5)
F10 Fuel Injector (No. 6) B–R
B–R
B–R
B–R
B–R
C4 Camshaft Timing Oil Control Valve (RH)
C3 Camshaft Timing Oil Control Valve (LH)
P4 Power Steering Oil Pressure SW
2
OC2–
OX1B
2
+B
BR
34 A # 50 1
(∗1)
ACIS # 40
B
# 30 1
2
(∗1)
# 20 1 2
1 3 3 1
HT2B
OX2B OX1B HT1B
H3 Heated Oxygen Sensor (Bank 1 Sensor 2) L–W
33 A 1 A 2
BR
R–L
G
1 2 A 2
BR
R–W
# 10 2 B–R
L
R–Y
R
1 A B–R
H4 Heated Oxygen Sensor (Bank 2 Sensor 2) L–W
Y
B
2 A
F6 Fuel Injector (No. 2)
B–R
B–R
M 1(A) Mass Air Flow Meter
W–L
R–L
B–R
BR
L–W
V3 VSV (ACIS)
F 5(A) Fuel Injector (No. 1)
B–R
LG
Engine Control for 1GR–FE ∗ 1 : Shielded ∗ 2 : w/ VSC ∗ 3 : w/o VSC (BAT)
10A ETCS
2 2
1
6 IA1
1 1
2 C 3 C 4 C 5 C 6 C 7 C 17 C 16 C 15 C 14 C 10 C
PSW
7 E +BM
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E) Engine Control Module
HT1B
4
E2
L–W
BR
L–W
L–W
BR
W
L–W
(BAT)
(IG)
(BAT) 10A IG1 NO. 2
50A J/B
10A STOP
2
2 2
14 1C
2
L
LG G–W
(∗2)
G–W
5 DD
3
2 1B
3 DB
2
2 L L
(∗3)
(∗2)
L
2
G
22 B
LG (∗2)
6 1C
L
G
7 1J
2
1 2
G–B
12 A
4
L
J 4(A), J 5(B) Junction Connector
5
5
L
(∗2)
G
TAIL Relay
12 DC 2
1
STOP LP CTRL Relay
13 DC
(∗2)
3 10A TAIL
1
2
S10 Stop Lamp SW
2
(∗2)
LG
(∗2)
(∗2)
6 1A
15 E
13 D
STP
ELS
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E) Engine Control Module MPMP 6 E
G
L–W
9 ID2
3 IB1
G
L–W
1 MGND
2 2B
J12 Junction Connector
W BR
3
1
BR
VLVB
6
BR
BR
7
2
1 2B
BR
W
4 2A
M
9 MTRB
Vent Valve
R
6 2 A
Leak Detection Pump
HA1A 1 A
BR
+B
11 ID2
W–B
B
W
W–B
A1A–
2 A
BR
NE– 20 C
1 A
C 5(A) Crankshaft Position Sensor
+B
21 C
(∗1)
4 A
NE+
2 B
R
L
3 A A1A+
2
HA1A
A1A– 30 B
P
A2A–
(∗1)
R
A2A+
1
22 B
W
(∗1)
4
A5 Air Fuel Ratio Sensor (Bank 2 Sensor 1) B–W
B–W
3
HA2A
A1A+
A2A– 31 B
W
23 B
A 4(A) Air Fuel Ratio Sensor (Bank 1 Sensor 1) W
A2A+
HA2A 1 B
L1 Canister Pump Module
BR
BR
BR W–B
W
BR
L–W
EE
81 TOYOTA TACOMA (EM01D0U)
Engine Control for 1GR–FE
IGF
IGT2
IGF
IGT3
IGF
IGT4
IGF
IGT5
IGF
IGT6
IGF
3
2
3
2
3
2
3
2
3
2
3
2
LG–B
W–R
GR
W–R
J12 Junction Connector
12
13
11 5
4
9
G
W–R
IGT1
W–R
I6 Ignition Coil (No. 6)
LG
I5 Ignition Coil (No. 5)
W–R
I4 Ignition Coil (No. 4)
P–L
I3 Ignition Coil (No. 3)
W–R
I2 Ignition Coil (No. 2)
P
I1 Ignition Coil (No. 1)
W–R W–R
10
P
P–L
LG
W–R
LG–B
GR
G
W–R
8 A
9 A
10 A
24 A
11 A
12 A
13 A
IGT2
IGT1
IGT3
IGF1
IGT4
IGT5
IGT6
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E) Engine Control Module VV2– 28 C
VV1+
VV1–
19 C
29 C
G
Y–B
VV2+ 18 C
R
21 A
BR
THW
28 A
L
E2
PPMP 22 E
Y
VPMP 5 E
VC 23 A
GR
12 ID2
10 ID2
4 ID2
5 IH1
4 IH1
VGND
SGND
E2 Engine Coolant Temp. Sensor
3
4
BR
2
L
8
L
GR
BR
V–W
2
VOUT
VCC
1
2
VVL+
VVL– VC
V6 VVT Sensor RH
BR
3 ID2
V5 VVT Sensor LH
V–W
L
L
BR
1
2
VVR+
VVR– VC
3
3
L
L
L
BR
1 BR
L
IF1
L
1
IF1
L
6
L
IF1
L
7
IF1
BR
5
BR
Canister Pressure Sensor
IF1
L
2
L
L1 Canister Pump Module
BR
BR
W–B
W–B
BR
BR
W–B
W–B
82 TOYOTA TACOMA (EM01D0U)
7 IA1
8 IA1
9 IA1
GR–B
L–W
21 E
19 E
27 E
VPA2
5 IM1
10
II1
R
R–B
26 E
IJ1
B–W
R
18 E
3
G–W
R–Y
20 E
II1
L
LG–B
5
R
11 IA1
EPA2
GSW2 22
B–W
12 IA1
VCPA
OUT 9
G–W
L–W
13 IA1
VPA
AC1 9
L
1
EPA
ACT 7
VCP2
3
GR–B
VPA2
2
R–B
EPA2
4
R
VCPA
6
R–Y
VPA
5
LG–B
EPA
A14 A/C Amplifier
V8 Voltage Inverter
A19 Accelerator Position Sensor
A21 Airbag Sensor Assembly Center
∗ 1 : Shielded
25 D
24 D
12 D
32 D
ACT
VCP2
ELS2
AC1
F/PS
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E) Engine Control Module
2
1
BR
K2 Knock Control Sensor (Bank 2)
W–B
L
IF1
(2WD A/T)
4
W
1
5 EE1
(∗1)
T1 Throttle Body Assembly
W–B
3
1 EE1
W–B
K1 Knock Control Sensor (Bank 1)
IF1
2 EE1
W
2
(∗1)
E2 3
B
6 EE1
EKNK 28 B
B
4 EE1
L
M
BR
15 B
KNK1 29 B
(∗1) R
14 B
R
1 M–
G
2 M+
EKN2 20 B
G
W–B
4 VTA2
P
5 VC
(∗1)
6 VTA
G–B
KNK2 21 B
(∗1)
SEL 26 D
(∗1)
GE01 17 A
L
G–W
M– 4 A
BR
M+ 5 A
J 5(B) Junction Connector
VTA2 19 A
(2WD A/T)
VTA1 20 A
W–B
BR W–B
IC
83 TOYOTA TACOMA (EM01D0U)
Engine Control for 1GR–FE
T10 Transponder Key ECU
Y Y–B
P–B
2 E
23 E
33 D
34 D
14
TC
CANH
CANL
CANL
W–B
SPD
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E) Engine Control Module
Y
L–W
8 D
L4
27 IA1
2 DA
1 F
W
1 E
9 DB
P–B
J 9(D), J10(E), J11(F) Junction Connector
ST–Plug
Y–B
Y–B
(4WD A/T)
13 C
4WD
2 D
B
8 C
IMI
1 D
P–B
16 D
IMO
10 PA
L–W
V–W
II1
15 D
2
21 PA
Y–B
4
L–W
II1
2
(4WD A/T)
LG–B
(4WD)
2 PA
LG–B
17 PB
(4WD)
13
L–W
EFIO
12
LG–B
3
7. 5A OBD
V–W
LG–B
EFII
Transfer Indicator SW (L4 Position)
ADD Actuator Assembly
(BAT)
6
13
16
CANH
TC
BAT
D4 Data Link Connector 3 SG
TAC
CG
7 A
6 A
4 B
7 B
6 B
3 B
35 D
1 D
14 D
30 D
5
9
4
BR
W–B
W–B
W–B
W–B
W–B
W–B
W–B
B–W
GR–B
BR
W–B
B–W
W–B
W
1 C
E01
E02
E03
E04
E05
ME01
EOM
J14 Junction Connector
E1
TACH
THWO
2 BR 13
GR–B
B–W
W–B
W–B
B–W
7 PE
6 PE
W–B 1 W–B
EE
EF
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
BR
W–B
18 PA
J13 Junction Connector
2
IE
84 TOYOTA TACOMA (EM01D0U)
EE
IC
(IG)
(BAT)
7. 5A GAUGE
(IG)
7. 5A ECU–B
10A IG1
2 3 1J
2
9 1J
R
P
16 1C
7 PF
2 PD
13 1K
4 PA
R
19
1
R–Y
GR–B
P
V1 Vehicle Speed Sensor (Combination Meter) W
R–Y
36 IA1
SI
R–Y
(M/T)
3
(M/T)
W (M/T)
17 A
SE
3
(M/T)
R–Y
16 B
6
W–B
1 B
Speed Control
Tacho Control 18 A
2
IG+
(A/T)
Temp. Control 11 A
B–W
9 IH1
8 IH1
Speed Sensor (Front LH, RH)
(A/T)
BR
II1
7
1
2
J 4(A), J 5(B) Junction Connector
9
9
B–W
BR
17
GR–B
Malfunction Indicator Lamp
C9 Combination Meter
21
(M/T)
V
12 PC
V–W
(M/T)
V–W
B–W
L
FL+
FR+
RL–
RR+
20 A 15 B
6 A 16 B
5 A 44 B
B
RL+
FL–
P
R
3 A 40 B
17 A (w/ VSC) 39 B (w/o VSC) FR– RR– 19 A (w/ VSC) 45 B (w/o VSC)
O
G
4 A 9 B
BR
SP1
18 A 10 B
Y
12 A 18 B
W–B
S 1(A), (B) Skid Control ECU with Actuator
B–W
2
J1 Junction Connector
Speed Sensor (Rear)
IA
85 TOYOTA TACOMA (EM01D0U)
Engine Control for 1GR–FE System Outline The engine control system utilizes a microcomputer and maintains overall control of the engine, transmission etc. An outline of the engine control is given here. 1. Input Signals (1) Engine coolant temp. signal circuit The engine coolant temp. sensor detects the engine coolant temp. and has a built–in thermistor with a resistance which varies according to the engine coolant temp. The engine coolant temp. is input into TERMINAL THW of the engine control module as a control signal. (2) Intake air temp. signal circuit The intake air temp. sensor is installed in the mass air flow meter and detects the intake air temp., which is input as a control signal to TERMINAL THA of the engine control module. (3) Oxygen sensor signal circuit The oxygen density in the exhaust emission is detected and is input as a control signal from the heated oxygen sensors to TERMINALS OX1B and OX2B of the engine control module. (4) RPM signal circuit The camshaft position is detected by the VVT sensor LH and RH, and is input into TERMINALS VV1+ and VV2+ of the engine control module as a control signal. Also, the engine RPM is detected by the crankshaft position sensor and the signal is input into TERMINAL NE+ of the engine control module. (5) Throttle position sensor signal circuit The throttle position sensor detects the throttle valve opening angle as a control signal, which is input into TERMINALS VTA1 and VTA2 of the engine control module. (6) Vehicle speed circuit The vehicle speed sensor detects the vehicle speed, and the signal is input into TERMINAL SPD of the engine control module via the combination meter, from TERMINAL SP1 of the skid control ECU with actuator. (A/T) The vehicle speed is detected by the vehicle speed sensor installed in the transaxle and the signal is input to TERMINAL SPD of the engine control module via the combination meter. (M/T) (7) Battery signal circuit Voltage is constantly applied to TERMINAL BATT of the engine control module. When the ignition SW is turned on, the voltage for engine control module start up power supply is applied through the EFI relay, to TERMINALS +B and +B2 of the engine control module. The current from the IGN fuse flows to TERMINAL IGSW of the engine control module, and voltage is constantly applied to TERMINAL +BM. (8) Intake air volume signal circuit The intake air volume is detected by the mass air flow meter, and is input as a control signal to TERMINAL VG of the engine control module. (9) Stop lamp SW signal circuit The stop lamp SW is used to detect whether the vehicle is braking or not, and the signal is input into TERMINAL STP of the engine control module as a control signal. (10) Starter signal circuit To confirm whether the engine is cranking, the voltage applied to the starter motor when the engine is cranking is detected, and is input into TERMINAL STA of the engine control module as a control signal. (11) Engine knock signal circuit Engine knocking is detected by the knock sensors, and is input into TERMINALS KNK1 and KNK2 of the engine control module as a control signal. (12) A/C SW signal system The operating voltage of the A/C magnetic clutch is detected and input in the form of a control signal to TERMINAL AC1 of the engine control module. (13) Air fuel ratio signal circuit The air fuel ratio is detected and input as a control signal into TERMINALS A1A+, A2A+ of the engine control module.
86 TOYOTA TACOMA (EM01D0U)
2. Control System ∗ SFI system The SFI system monitors the engine condition through the signals input from each sensors to the engine control module. The control signal is sent to the engine control module TERMINALS #10, #20, #30, #40, #50 and #60 to operate the injector (Fuel injection). The SFI system controls the fuel injection by the engine control module in response to the driving conditions. ∗ ESA system The ESA system monitors the engine condition through the signals input from each sensors to the engine control module. The best ignition timing is decided according to this data and the data memorized in the engine control module. The control signal is output to TERMINALS IGT1, IGT2, IGT3, IGT4, IGT5 and IGT6, and these signals control the igniter to provide the best ignition timing. ∗ Heated oxygen sensor heater control system The heated oxygen sensor heater control system turns the heater on when the intake air volume is low (Temp. of exhaust emission is low), and warms up the heated oxygen sensors to improve their detection performance. The engine control module evaluates the signals from each sensors, and outputs current to TERMINALS HT1B or HT2B to control the heater. ∗ Air fuel ratio sensor heater control system The air fuel ratio sensor heater control system turns the heater on when the intake air volume is low (Temp. of exhaust emission is low), and warms up the air fuel ratio sensor to improve detection performance of the sensor. The engine control module evaluates the signals from each sensor, current is output to TERMINALS HA1A and HA2A, controlling the heater. ∗ Fuel pump control system The engine control module supplies current to TERMINAL FPR, and controls the operation speed of the fuel pump with the FUEL PUMP relay. ∗ ACIS The ACIS includes a valve in the bulkhead separating the surge tank into two parts. This valve is opened and closed in accordance with the driving conditions to control the intake manifold length in two stages, for increased engine output in all ranges from low to high speeds. ∗ ETCS–i The ETCS–i controls the engine output at its optimal level in accordance with the opening of the accelerator pedal, under all driving conditions. ∗ VVT–i Controls the intake camshaft to an optimal valve timing in accordance with the engine condition. 3. Diagnosis System When there is a malfunction in the engine control module signal system, the malfunctioning system is recorded in the memory. The malfunctioning system can be found by reading the code displayed on the malfunction indicator lamp. 4. Fail–Safe System When a malfunction has occurred in any system, there is a possibility of causing engine trouble due to continued control based on that system. In that case, the fail–safe system either controls the system using the data (Standard values) recorded in the engine control module memory, or else stops the engine.
87 TOYOTA TACOMA (EM01D0U)
Engine Control for 1GR–FE : Parts Location Code A4
See Page A
Code
See Page
Code
See Page
40 (1GR–FE)
F9
40 (1GR–FE)
J14
45
A5
40 (1GR–FE)
F10
40 (1GR–FE)
K1
41 (1GR–FE)
A14
44
F11
40 (1GR–FE)
K2
41 (1GR–FE)
A19
44
A21
44
C3
40 (1GR–FE)
H3
41 (1GR–FE)
C4
40 (1GR–FE)
H4
41 (1GR–FE)
P1 P4
C5
A
46 (*1)
F19
46 (*1)
L1
48 (*2) M1
48 (*2) A
41 (1GR–FE) 41 (1GR–FE)
40 (1GR–FE)
I1
41 (1GR–FE)
C8
44
I2
41 (1GR–FE)
C9
44
I3
41 (1GR–FE)
D4
44
I4
41 (1GR–FE)
S10
45
D6
44
I5
41 (1GR–FE)
T1
41 (1GR–FE)
E2
40 (1GR–FE)
I6
41 (1GR–FE)
T10
45
A
44
I7
45
V1
41 (1GR–FE)
E5
B
44
E6
C
44
J4
A
45
E7
D
44
J5
B
45
V5
41 (1GR–FE)
E8
E
44
J9
D
45
V6
41 (1GR–FE)
F5
A
40 (1GR–FE)
J10
E
45
40 (1GR–FE)
J11
F
45
E4
F6 F7
A F8
J1
S1
45
40 (1GR–FE)
J12
45
40 (1GR–FE)
J13
45
41 (1GR–FE) A
41 (1GR–FE)
B
41 (1GR–FE)
V3 V4
41 (1GR–FE) A
V8
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
1A 1B
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2A
24
Engine Room J/B (Engine Compartment Left)
2B
24
Engine Wire and Engine Room J/B (Engine Compartment Left)
2C
24
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
1C 1H 1I 1J 1K
DA DB DC DD PA PB PC PD PE PF
* 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
88 TOYOTA TACOMA (EM01D0U)
41 (1GR–FE)
47 (*1) 48 (*2)
: Connector Joining Wire Harness and Wire Harness Code
See Page
EA1
52 (1GR–FE)
Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B)
EE1
52 (1GR–FE)
Engine Wire and Sensor Wire (Rear Side of Right Bank Cylinder Block)
IA1
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IB1
54
Frame Wire and Engine Room Main Wire (Left Kick Panel)
ID2
54
Frame Wire and Instrument Panel Wire (Left Kick Panel)
IF1
55
Engine Wire and Engine Wire (Behind the Glove Box)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
II1
55
Instrument Panel Wire and Instrument Panel Wire (Instrument Panel Brace RH)
IJ1
55
Instrument Panel Wire and Instrument Panel Wire (Right Kick Panel)
IM1
55
Floor No.3 Wire and Instrument Panel Wire (Under the Console Box)
: Ground Points Code
See Page
Ground Points Location
EA
52 (1GR–FE)
Front Right Fender
EB
52 (1GR–FE)
Front Left Fender
EE
52 (1GR–FE)
Rear Side of Right Bank Cylinder Block
EF
52 (1GR–FE)
Rear Side of Left Bank Cylinder Block
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
IE
54
Right Kick Panel
BD
56 (*1) 57 (*2)
* 1 : Double Cab
Near the Rear Differential * 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
89 TOYOTA TACOMA (EM01D0U)
Engine Control for 2TR–FE (BAT)
(BAT) 15A A/F HEATER
20A EFI
2
15A IGN
2 2
2 13 1C
B–R
L 5 AM2
(IG)
IG2 6
15 1I B–R O
O
ST2
1
3
2
2
1
5
2
3
O
B 2
A/F HEATER Relay
5 EFI Relay
B–R
2
2
2
5
1
3
2
C/OPN Relay
L W–R
2
11 1B
B–R
7 EA1
G–W
L–W
B–R
9 1B
L
G–W
B–R
L
I7 Ignition SW
2 2
2
2
2
W
8 IB1
11 2A 30 2A
31 2A
4 2A
B
B
2 Battery
1 2B
W
10 2A 33 2A
9 2A
W–B
10A EFI NO. 2
B
1
F19 Fuel Suction Pump and Gage Assembly
2
4 M 5
W–B
1 2C
B–R
B
B
1
W–B
W–B
30A AM2
B
B–R
2
2
L–B
2
L–B
2
L–W
B
W–B
L–W L–W
EA
EB
90 TOYOTA TACOMA (EM01D0U)
W–B
W–B
W–B
W
BD
(ST)
(BAT)
7. 5A STA
50A A/PMP
2
2 2
V
W
2
B–R
B–R
O
O
L
L
G–W
G–W
V
V(A/T)
6 2A
1
L–B
(M/T)
W
2 18 PB
A 6(A), A 7(B) Air Injection Control Driver
1 A
(A/T)
V
3 2B
V
D6 Diode (Clutch Start)
V (M/T)
5 2A
+B
3 PD
4 DD
Y–R
R–W
9 EA1
6 EA1
2 EA1
8 EA1
R–W
EIV
Y–R
EIP
G–R
DI 2 B
G–R
BATT 5 B
L–W
VV
L–R
E 1 B
6 B
W–B
VB 2 A
4 B
3 B
9 PB
V
L
L–R
B
B
1
P N
2
A9 Air Pump 5 2B
1
Y–R 1
W–B
4 2B
M
G–R
W–B
B–Y
(A/T)
(M/T)
5
7 2A
R–W
A10 Air Switching Valve
2
2
B–Y
(A/T)
(M/T)
4
P1 Park/Neutral Position SW
C8 Clutch Start SW
L–B
12 DD
B–Y
B–Y
L–B
L–B
B
B
L–W L–W
L–W
L–W
L–W W–B W
W–B
W–B
W
EA
91 TOYOTA TACOMA (EM01D0U)
Engine Control for 2TR–FE (BAT)
∗ 1 : Shielded ∗ 2 : w/ VSC ∗ 3 : w/o VSC
10A ETCS
2 2
B–R
B–R
LG
B–R
1
V(A/T)
NSW
2
R
G
L–W
W
LG
2
B
2 B
R–L
2
O
2 B
6 IA1
L
30 D
1 IA1
1
G–W
V
(A/T)
10 IA1
C2 Camshaft Timing Oil Control Valve
B–R
1 B
F8 Fuel Injector (No. 4)
B–R
1
F 7(B) Fuel Injector (No. 3)
B–R
1 B
F6 Fuel Injector (No. 2)
G–W
F 5(B) Fuel Injector (No. 1)
L
B–R
O
8 D
3 D
9 D
6 B
5 B
2 B
1 B
13 A
12 A
7 D
MREL
BATT
IGSW
# 10
# 20
# 30
OC1+
# 40
+BM
OC1–
E 4(A), E 5(B), E 7(C), E 8(D) Engine Control Module
R–W
R–L
3 B
2 B
4 B
2 B
VG
E2G
THA
+B
E2
1 B
5 B
B
9 2B
10 2B
BR
6 1B
G–R
B–Y
THA 29 B
1 B
L–W
L–B
Y–R
B–Y
R–W
E2G 30 B
R–Y
3 1H
M 1(B) Mass Air Flow Meter
14 IA1
VG 28 B
Y
11 IH1
PRG 23 B
V 4(B) VSV (Purge)
B
+B 1 D
L–B
FC 25 D
L–W
STA 12 D
B–Y
G–R
AIDI 20 B
Y–R
AIRP 11 A
R–W
AIRV 24 A
9
IF1
6 2B
BR
15 2A
L–W
L–W
L–W
L–W
13 2A 18 2A 14 2A
L–W
B
L–W
L–B
L–W
L–W
L–W
BR
W–B
W–B
W
W L–W
92 TOYOTA TACOMA (EM01D0U)
(BAT)
(IG)
(BAT) 10A IG1 NO. 2
50A J/B
10A STOP
2
2 2
14 1C
L
2 G–W
G
3 2
L
2 6 1C
5 DD
2 1B
3 DB
1 2
2
LG
L
L
(∗3)
(∗2)
L
(∗2)
L
L
(∗2)
G
22 B
2
(∗2)
G
7 1J
5 4
G–B
12 A
J 4(A), J 5(B) Junction Connector
5
1
(∗2)
TAIL Relay
12 DC 2
2
S10 Stop Lamp SW
13 DC
G–W
2
STOP LP CTRL Relay
LG
3 10A TAIL
1
(∗2)
(∗2)
6 1A
4 C
15 D
STP
ELS
E 4(A), E 5(B), E 7(C), E 8(D) Engine Control Module
R
2 B
1 B
+B
HA1A
2 B
1 B
(∗1)
A1A–
5 PA 12 PA
(∗1)
C1 Camshaft Position Sensor
A1A+
1 PA 1
NE–
NE
3 B GND
C 5(B) Crankshaft Position Sensor
2
W
BR
BR
E2 4
BR
+B
2
A 4(B) Air Fuel Ratio Sensor (Bank 1 Sensor 1)
BR
G
(∗1)
27 A
G
G
G
G
4 B
NE+
34 A
L
3 B
NE–
G2 26 A
(∗1)
HT1B
1 A
R
OX1B
HA1A
A1A– 31 A
L
G
1
21 A
(∗1)
W
3
A1A+
P
HT1B 2 A
H3 Heated Oxygen Sensor (Bank 1 Sensor 2) L–W
(∗1)
OX1B 25 A
J12 Junction Connector 7
2 6
BR
1
BR
3 BR
BR
8 BR
BR
L–W BR
BR
BR
W–B
W
BR
L–W
L–W
BR
W–B
EH
93 TOYOTA TACOMA (EM01D0U)
IGF
IGT2
IGF
IGT3
IGF
IGT4
IGF
3
2
3
2
3
2
3
2
W–R
LG
W–R
LG–B
W–R
1
J12 Junction Connector
12
M 3
13
LG
W–R
LG–B
32 B
4WD
11
P–L
21 B
4
P
G–W
(4WD)
5
LG–B
G2 Generator
IGT1
P–L
I4 Ignition Coil (No. 4)
W–R
I3 Ignition Coil (No. 3)
L
2 PA
I2 Ignition Coil (No. 2)
P
17 PB
I1 Ignition Coil (No. 1)
P4 Power Steering Oil Pressure SW
LG–B
(4WD)
ADD Actuator Assembly
Engine Control for 2TR–FE
17 A
16 A
15 A
23 A
14 A
PSW
IGT2
IGT1
IGT3
IGF1
10 A
IGT4
ALT
E 4(A), E 5(B), E 7(C), E 8(D) Engine Control Module E2
G
L–W
V–W
BR
GR
11 ID2
9 ID2
3 IB1
3 ID2
12 ID2
10 ID2
4 ID2
L–W
V–W
BR
GR
L
THW
28 A
32 A
L
G
W–B
PPMP 31 D
Y–B
VPMP 5 D
W–B
BR
MPMP 6 D
BR
E1 3 A
2
BR
E2 Engine Coolant Temp. Sensor
3 SGND
4 VOUT
1 VCC
BR
2 VGND
BR
8 VLVB
BR
5
IF1
BR
Canister Pressure Sensor
IF1
BR
2
L
Leak Detection Pump
M
9 MTRB
L
1 MGND
4 IH1
Vent Valve
6
5 IH1
L
L1 Canister Pump Module
BR BR
BR
W–B
W–B
W–B
BR
BR
L–W
W–B
94 TOYOTA TACOMA (EM01D0U)
∗ 1 : Shielded
7 IA1
8 IA1
9 IA1
GR–B
L–W
21 D
19 D
27 D
VPA2
A21 Airbag Sensor Assembly Center
5 IM1
10
II1
R
R–B
26 D
IJ1
B–W
R
18 D
3
G–W
R–Y
20 D
II1
L
LG–B
5
R
11 IA1
EPA2
GSW2 22
B–W
12 IA1
VCPA
OUT 9
G–W
L–W
13 IA1
VPA
AC1 9
L
1
EPA
ACT 7
VCP2
3
GR–B
VPA2
2
R–B
EPA2
4
R
VCPA
6
R–Y
VPA
5
LG–B
EPA
A14 A/C Amplifier
V8 Voltage Inverter
A19 Accelerator Position Sensor
25 C
24 C
20 C
32 C
ACT
VCP2
ELS2
AC1
F/PS
E 4(A), E 5(B), E 7(C), E 8(D) Engine Control Module GE01
W
2 EF1
1 EF1
W
VC
6
5
4
2
1
VTA
VC
VTA2
M+
M–
2
1
3
L
L
L
BR
M
3 IF1
1
IF1
3
IF1
4
IF1
W–B
L
L
L
W–B
6
T1 Throttle Body Assembly
K1 Knock Control Sensor (Bank 1)
E2
L
EKNK 30 A
B
A8 Air Pressure Sensor
AIP E2
29 A
BR
L 2
1
KNK1
8 A
B
P
M– 4 A
(∗1)
M+ 5 A
L
VTA2 19 A
(∗1)
L
VTA1 20 A
G–B
GR
VC 18 A
G–W
AIP 22 B
BR W–B W–B
W–B
BR
W–B
W–B
95 TOYOTA TACOMA (EM01D0U)
Engine Control for 2TR–FE (BAT)
7. 5A OBD
T10 Transponder Key ECU 2 2
V–W 13
P–B
ST–Plug
14 CANL
W–B
CANL
E 4(A), E 5(B), E 7(C), E 8(D) Engine Control Module
Y
34 C
CANH
P–B
33 C
Y–B
L–W
17 C TC
27 IA1
2 DA
1 F
2 E
W
1 E
9 DB
8 C SPD
IMI
2 D
B
16 C
IMO
J 9(D), J10(E), J11(F) Junction Connector
15 C
1 D
P–B
II1
L–W
V–W
4
L–W
II1
LG–B
3
Y–B
Y
12
L–W
EFIO
LG–B
EFII
6
13
16
TC
CANH
BAT
D4 Data Link Connector 3 SG
TAC
CG
6 A
4 B
7 B
3 B
22 D
1 C
14 C
30 C
5
9
4
W–B
W–B
W–B
W–B
W–B
W–B
B–W
GR–B
BR
W–B
B–W
W–B
W
7 A
E02
E03
E04
ME01
EC
J14 Junction Connector
E01
TACH
THWO
1 BR 13
GR–B B–W
W–B
B–W
17 PA
6 PE
W–B
W–B
W–B
W–B
7 PE
18 PA
W–B
W–B 1 W–B
EH
EG
W–B
W–B
J13 Junction Connector
2
IE
96 TOYOTA TACOMA (EM01D0U)
EH
IC
(IG)
(BAT)
7. 5A GAUGE
(IG)
7. 5A ECU–B
10A IG1
2 3 1J
2
9 1J
R
P
16 1C
7 PF
2 PD
13 1K
4 PA
R
19
1
P
V1 Vehicle Speed Sensor (Combination Meter) W
9 IH1
R–Y
(M/T)
W (M/T)
R–Y
36 IA1
SI 3
(M/T)
Speed Control 17 A
SE
3
(M/T)
16 B
R–Y
1 B
6
(A/T)
Tacho Control 18 A
2
W–B
Temp. Control 11 A
B–W
IG+
2
R–Y
GR–B
8 IH1
Speed Sensor (Front LH, RH)
(A/T)
BR
II1
7
1
J 4(A), J 5(B) Junction Connector
9
9
B–W
BR
17
GR–B
Malfunction Indicator Lamp
C9 Combination Meter
21
(M/T)
V
12 PC
V–W
(M/T)
V–W
B–W
L
FL+
RL–
FR+ RR+
20 A 15 B
6 A 16 B
5 A 44 B
B
RL+
FL–
P
R
3 A 40 B
17 A (w/ VSC) 39 B (w/o VSC) FR– RR– 19 A (w/ VSC) 45 B (w/o VSC)
O
G
4 A 9 B
BR
SP1
18 A 10 B
Y
12 A 18 B
W–B
S 1(A), (B) Skid Control ECU with Actuator
B–W
2
J1 Junction Connector
Speed Sensor (Rear)
IA
97 TOYOTA TACOMA (EM01D0U)
Engine Control for 2TR–FE System Outline The engine control system utilizes a microcomputer and maintains overall control of the engine, etc. An outline of engine control is given here. 1. Input Signals (1) Engine coolant temp. signal system The engine coolant temp. sensor detects the engine coolant temp. and has a built–in thermistor with a resistance which varies according to the engine coolant temp. Thus the engine coolant temp. is input as a control signal to TERMINAL THW of the engine control module. (2) Intake air temp. signal system The intake air temp. sensor is installed in the mass air flow meter and detects the intake air temp., which is input as a control signal to TERMINAL THA of the engine control module. (3) Power steering oil pressure signal system Power steering oil pressure is detected by the power steering oil pressure SW and is input as a control signal to TERMINAL PSW of the engine control module. (4) RPM signal system Camshaft position and crankshaft position are detected by the camshaft position sensor and crankshaft position sensor. Camshaft position is input as a control signal to TERMINAL G2 of the engine control module, and engine RPM is input into TERMINAL NE+. (5) Throttle signal system The throttle position sensor detects the throttle valve opening angle, which is input as a control signal to TERMINALS VTA1 and VTA2 of the engine control module. (6) Vehicle speed signal system The vehicle speed is detected by the ABS speed sensor and the signal is input to TERMINAL SPD of the engine control module via the combination meter and the skid control ECU with actuator. (A/T) The vehicle speed is detected by the vehicle speed sensor installed in the transaxle and the signal is input to TERMINAL SPD of the engine control module via the combination meter. (M/T) (7) NSW signal system (A/T) The Park/Neutral position SW detects whether the shift position is in neutral or not, and inputs a control signal to TERMINAL NSW of the engine control module. (8) A/C SW signal system The operating voltage of the A/C SW is detected and is input as a control signal to TERMINAL AC1 of the engine control module. (9) Battery signal system Voltage is constantly applied to TERMINAL BATT of the engine control module. When the ignition SW is turned to on, voltage for engine control module operation is applied via the EFI relay to TERMINAL +B of the engine control module. (10) Intake air volume signal system Intake air volume is detected by the mass air flow meter, and is input as a control signal to TERMINAL VG of the engine control module. (11) STA signal system To confirm that the engine is cranking, the voltage applied to the starter motor during cranking is detected and is input as a control signal to TERMINAL STA of the engine control module. (12) Oxygen sensor signal system The oxygen density in the exhaust gases is detected and is input as a control signal into TERMINAL OX1B of the engine control module. To maintain stable detection performance by the oxygen sensor, a heater is used for warming the sensor. The heater is also controlled by the engine control module (HT1B). (13) Engine knock signal system Engine knocking is detected by the knock sensor and input as a control signal to TERMINAL KNK1 of the engine control module. (14) Electrical load signal system When systems which cause a high electrical load such as the rear window defogger, taillight are turned on, a signal is input to TERMINALS ELS and ELS2 as a control signal. (15) Air fuel ratio signal circuit The air fuel ratio is detected and input as a control signal into TERMINAL A1A+ of the engine control module.
98 TOYOTA TACOMA (EM01D0U)
2. Control System ∗ SFI system The SFI system monitors the engine conditions through the signals, which are input from each sensor to the engine control module. Based on this data and the program memorized in the engine control module, the most appropriate fuel injection timing is decided and current is output to TERMINALS #10, #20, #30 and #40 of the engine control module, operating the injectors (to inject fuel). This is the system which finely controls the fuel injection in response to the driving conditions, through the engine control module. ∗ ESA system The ESA system monitors the engine conditions using the signals, which are input to the engine control module from each sensor. Based on this data and the program memorized in the engine control module, the most appropriate ignition timing is decided and current is output to TERMINALS IGT1, IGT2, IGT3 and IGT4 of the engine control module. This output controls the ignition coil and igniter No. 1 , No. 2 , No. 3 and No. 4 to produce the most appropriate ignition timing for the driving conditions. ∗ Knock control system Knock control system controls the gate based on the engine rotation speed and detects knocking by the peak value of the knock sensor output during the gate open period, and then controls it to the most suitable ignition timing in proportion to the driving condition. ∗ Evapoparge control system This system leads the vapor stuck to the canister to the serge tank in order not to agitate the air fuel by adjusting the fuel injection volume. The signal at this time will be output from TERMINAL PRG of the engine control module to VSV (Purge). 3. Diagnosis System With the diagnosis system, when there is a malfunctioning in the engine control module signal system, the malfunction system is recorded in the memory. The malfunctioning system can be found by reading the display (Code) of the malfunction indicator lamp. 4. Fail–Safe System When a malfunction occurs in any system, if there is a possibility of engine trouble being caused by continued control based on the signals from that system, the fail–safe system either controls the system by using the data (Standard values) recorded in the engine control module memory or else stops the engine. : Parts Location Code
See Page
Code
See Page
Code
See Page
A4
B
42 (2TR–FE)
E7
C
44
J10
A6
A
42 (2TR–FE)
E8
D
44
J11
A7
B
42 (2TR–FE)
F5
B
42 (2TR–FE)
J12
45
42 (2TR–FE)
J13
45
42 (2TR–FE)
J14
45
42 (2TR–FE)
K1
43 (2TR–FE)
45
F
45
A8
42 (2TR–FE)
A9
42 (2TR–FE)
A10
42 (2TR–FE)
A14
44
A19
44
A21
44
G2
42 (2TR–FE)
C1
42 (2TR–FE)
H3
43 (2TR–FE)
P1
C2
42 (2TR–FE)
I1
43 (2TR–FE)
P4
42 (2TR–FE)
I2
43 (2TR–FE)
C8
44
I3
43 (2TR–FE)
C9
44
I4
43 (2TR–FE)
D4
44
I7
45
T1
43 (2TR–FE)
D6
44
45
T10
45
E2
42 (2TR–FE)
J4
A
45
V1
C5
B
F6
E
F7
B F8
48 (*2)
F19
49 (*3)
J1
E4
A
44
J5
B
45
E5
B
44
J9
D
45
48 (*2)
L1 M1
49 (*3) B
S1
43 (2TR–FE) 43 (2TR–FE) A
43 (2TR–FE)
B
43 (2TR–FE)
S10
V4
45
43 (2TR–FE) B
V8
43 (2TR–FE)
43 (2TR–FE) 48 (*2)
: Relay Blocks Code 2
See Page 24
* 1 : Double Cab
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
99 TOYOTA TACOMA (EM01D0U)
Engine Control for 2TR–FE : Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
1A 1B
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2A
24
Engine Room J/B (Engine Compartment Left)
2B
24
Engine Wire and Engine Room J/B (Engine Compartment Left)
2C
24
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
1C 1H 1I 1J 1K
DA DB DC DD PA PB PC PD PE PF
: Connector Joining Wire Harness and Wire Harness Code
See Page
EA1
53 (2TR–FE)
Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B)
EF1
53 (2TR–FE)
Engine Wire and Sensor Wire (Left Side of Cylinder Block)
IA1
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IB1
54
Frame Wire and Engine Room Main Wire (Left Kick Panel)
ID2
54
Frame Wire and Instrument Panel Wire (Left Kick Panel)
IF1
55
Engine Wire and Engine Wire (Behind the Glove Box)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
II1
55
Instrument Panel Wire and Instrument Panel Wire (Instrument Panel Brace RH)
IJ1
55
Instrument Panel Wire and Instrument Panel Wire (Right Kick Panel)
IM1
55
Floor No.3 Wire and Instrument Panel Wire (Under the Console Box)
: Ground Points Code
See Page
Ground Points Location
EA
53 (2TR–FE)
Front Right Fender
EB
53 (2TR–FE)
Front Left Fender
53 (2TR–FE)
Rear Side of Cylinder Block
EG EH IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
IE
54
Right Kick Panel
BD
57 (*2) 58 (*3)
* 1 : Double Cab
Near the Rear Differential * 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
100 TOYOTA TACOMA (EM01D0U)
Memo
101 TOYOTA TACOMA (EM01D0U)
Engine Immobiliser System for 1GR–FE (BAT)
(IG)
15A IGN
20A EFI
2
2
2 1I
15 1I
O
L
O
O
8 E
3 E
9 E
E04
E05
ME01
7 B
6 B
3 B
EOM
SEL 26 D
IMO
IMI
35 D
15 D
16 D
L–W
E03 4 B
LG–B
E02 6 A
W–B
E01 7 A
W–B
2 1H
9 2A 33 2A
6 1B
W–B
B
3 1H
(2WD A/T)
B
11 2A 30 2A
B
E1 1 C
2
W–B
2
+B2 2 E
W–B
+B 1 E
W–B
2
IGSW
W–B
3
BATT
W–B
EFI Relay
MREL
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E) Engine Control Module
W–B
1
BR
5
2
O
L
L 2
L
1 IA1
G–W
10 IA1
G–W
G–W
L
LG–B
W–B
(2WD A/T)
W–B
J14 Junction Connector
J5 Junction Connector
B
W–B
2
13
15
W–B
B
L–W 14
W–B
W–B
W–B
W–B (2WD A/T)
EA
EB
EE
EF
102 TOYOTA TACOMA (EM01D0U)
(BAT) ∗ 1 : Double Cab ∗ 2 : Access Cab
7. 5A ECU–B
2 2
T9 Transponder Key Amplifier
D4 Data Link Connector 3
O
Transponder Key Coil SIL
R
W
7
ANT1
ANT2
O
R
W
2
1
9
+B
TXCT
KSW
CTY 7
1 1K
6
2 1J
II1
LP
W–B
W–B
W–B 11
2
(∗2)
G–Y
1
J13 Junction Connector
W–B (2WD A/T) IC
IL1
1
IE
W–B
W–B
W–B
D11 Door Courtesy SW (Driver' s Side)
2
W–B
2 BF1
(∗2)
E 7
G–Y
5
1
(∗1)
6
7 1F
W–B
J5 Junction Connector
L–W
U1 Unlock Warning SW
G–B
10 1K
LG–B
IND 8
R–Y
T10 Transponder Key ECU
V–W
3
5 AGND
G–Y
3
4
CODE
7
Security Indicator Light
II1
W–B
L–W 4
GND 16
LG–B
EFII 12
15
H7 Hazard Warning Signal SW Assembly
EFIO 13
14 VC5
D
AGND
G–B
IG
5
L
3 DA
TXCT
4
P–G
14 1J
1
GR–B
10 DA
LG–R
CODE
VC5 16 1C
BB
103 TOYOTA TACOMA (EM01D0U)
Engine Immobiliser System for 1GR–FE : Parts Location Code
See Page
D4 D11
Code
See Page
Code
See Page
44
E6
C
44
J13
45
46 (*1)
E7
D
44
J14
45
48 (*2)
E8
E
44
T9
45
E4
A
44
H7
45
T10
45
E5
B
44
J5
45
U1
45
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1B
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
28
Floor No.2 Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2A
24
Engine Room J/B (Engine Compartment Left)
DA
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
1C 1F 1H 1I 1J 1K
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
II1
55
Instrument Panel Wire and Instrument Panel Wire (Instrument Panel Brace RH)
IL1
55
Instrument Panel Wire and Floor Wire (Right Kick Panel)
BF1
57 (*2)
Rear Door No.2 Wire and Floor No.2 Wire (Under the Left Quarter Panel)
: Ground Points Code
See Page
Ground Points Location
EA
52 (1GR–FE)
Front Right Fender
EB
52 (1GR–FE)
Front Left Fender
EE
52 (1GR–FE)
Rear Side of Right Bank Cylinder Block
EF
52 (1GR–FE)
Rear Side of Left Bank Cylinder Block
IC
54
Instrument Panel Brace RH
IE
54
Right Kick Panel
BB
56 (*1) 57 (*2)
* 1 : Double Cab
Floor Seat Cross Member RH * 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
104 TOYOTA TACOMA (EM01D0U)
Memo
105 TOYOTA TACOMA (EM01D0U)
Engine Immobiliser System for 2TR–FE (BAT)
(IG)
15A IGN
20A EFI
2
2
2 1I
15 1I
O
L
O
O
5
2
1
O
L
L 2
L
1 IA1
G–W
10 IA1
G–W
G–W
L
8 D
3 D
9 D
EFI Relay
MREL
E1 3 A
7 A
6 A
4 B
7 B
3 B
22 D
29 D
15 C
16 C
W–B
W–B
W–B
W–B
W–B
W–B
W–B
LG–B
L–W
1
2
E01
E02
E03
E04
ME01
EC
EOM
IMO
IMI
2
W–B
B
2
+B 1 D
BR
2
IGSW
B
3
BATT
E 4(A), E 5(B), E 7(C), E 8(D) Engine Control Module
11 2A 30 2A
3 1H
9 2A 33 2A
6 1B
1
13
W–B
J14 Junction Connector
LG–B
BR
J12 Junction Connector
B
W–B W–B
B
L–W 8
EA
W–B
W–B
W–B
EB
EH
EG
106 TOYOTA TACOMA (EM01D0U)
(BAT) ∗ 1 : Regular Cab ∗ 2 : Access Cab
7. 5A ECU–B
2 2
T9 Transponder Key Amplifier
D4 Data Link Connector 3
O
Transponder Key Coil SIL
R
W
7
ANT1
ANT2
O
R
W
2
1
9
+B
TXCT
KSW
CTY 7
1 1K
6
2 1J
II1
LP
W–B
W–B
W–B 11
2
(∗2)
G–Y
1
J13 Junction Connector IC
IL1
1
IE
W–B
W–B
W–B
D11 Door Courtesy SW (Driver' s Side)
2
W–B
2 BF1
(∗2)
E 7
G–Y
5
1
(∗1)
6
7 1F
W–B
J5 Junction Connector
L–W
U1 Unlock Warning SW
G–B
10 1K
LG–B
IND 8
R–Y
T10 Transponder Key ECU
V–W
3
5 AGND
G–Y
3
4
CODE
7
Security Indicator Light
II1
W–B
L–W 4
GND 16
LG–B
EFII 12
15
H7 Hazard Warning Signal SW Assembly
EFIO 13
14 VC5
D
AGND
G–B
IG
5
L
3 DA
TXCT
4
P–G
14 1J
1
GR–B
10 DA
LG–R
CODE
VC5 16 1C
BB
107 TOYOTA TACOMA (EM01D0U)
Engine Immobiliser System for 2TR–FE : Parts Location Code
See Page
D4 D11
Code
44
E7
48 (*2)
E8
See Page
Code
See Page
C
44
J13
45
D
44
J14
45
49 (*3)
H7
45
T9
45
E4
A
44
J5
45
T10
45
E5
B
44
J12
45
U1
45
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1B
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
28
Floor No.2 Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2A
24
Engine Room J/B (Engine Compartment Left)
DA
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
1C 1F 1H 1I 1J 1K
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
II1
55
Instrument Panel Wire and Instrument Panel Wire (Instrument Panel Brace RH)
IL1
55
Instrument Panel Wire and Floor Wire (Right Kick Panel)
BF1
57 (*2)
Rear Door No.2 Wire and Floor No.2 Wire (Under the Left Quarter Panel)
: Ground Points Code
See Page
Ground Points Location
EA
53 (2TR–FE)
Front Right Fender
EB
53 (2TR–FE)
Front Left Fender
53 (2TR–FE)
Rear Side of Cylinder Block
IC
54
Instrument Panel Brace RH
IE
54
Right Kick Panel
EG EH
BB
57 (*2) 58 (*3)
* 1 : Double Cab
Floor Seat Cross Member RH * 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
108 TOYOTA TACOMA (EM01D0U)
Memo
109 TOYOTA TACOMA (EM01D0U)
Headlight R
W
R
W R–B 2
(BAT)
2
(BAT)
R–B
1
10A IG1 NO. 2
W
R
R
(IG)
2
20A DR LCK
3
7. 5A ECU–B
4
DIM Relay 2
2
2
2
5
2
2
R
Y–B
1
HEAD Relay
3
W
2
R–B
29 IA1 R–B 30 IA1
2
5
14 A
1 2C
4
IG
6 ECUB
ALTB
B 5(A) Body ECU
15 A DIM
8
1
R–W
9 1I
18 1H
7 1L
R–G
W–B
W–B
HF
L
DRL 5 A
18 A
5 1C
HF
HL
HU
TL
TR
OFF
3 DD
14 DD
GR
11 DB LG–B
GR
GR
High
2 IH1
(∗3)
2 EB1
(∗2)
G–Y
(M/T)
G–Y
(A/T)
(∗1)
Head Low
Dimmer SW
15 DC
Tail
GR
EL
(∗3)
T
1 DB
11 DD
11
(∗2)
17
(∗1)
IJ1
20 H
Light Control SW
10
R–W
IJ1
P
9
G–Y
GR
Battery
PKB 24
(∗1)
GND
16 A
HEAD
LG–B
HU
17 A
P
B
HRLY
Y–B
16 1C
W
5
Turn SW
LH N
15
13
LG(∗1)
L
W–B(∗1) LG(∗1) Y(∗1)
6 A
IC
W–B
5 B
W–B
W–B
W–B
J 4(A), J 5(B) Junction Connector
W–B
12
Y(∗1)
RH
C11 Combination SW
4
1
G2 Generator
P6 Parking Brake SW
Flash
4
2
J1 Junction Connector
IA
110 TOYOTA TACOMA (EM01D0U)
W
W
W
W
R–B
R–B
R–B
R–B
(IG) ∗ 1 : w/ Daytime Running Light ∗ 2 : 1GR–FE ∗ 3 : 2TR–FE
(BAT)
10A IG1
15A TRN–HAZ
2
(∗1)
(∗1)
P
T11 Turn Signal Flasher
2
B–Y
1 1L
1 IG
B
HAZ
W
(∗1)
(∗1)
(∗1)
6
10
B–Y
TFR 2
R–Y
TFL 4
R–B
Y
(∗1)
LG
7
(∗1)
EL
8
(∗1)
W–B
(∗1)
LG–R
ER
E 9
(∗1)
DRL 12
4 1L
20 1I
18 1J
8 1J
7 1B
5 1B
11 1J
4 1B
B–Y
(∗1)
(∗1)
(∗1)
(∗1)
R–W
8 1L
R–Y
1 1M
R–B
11 1M
Y
5 1L
LG
6 1L
(∗1)
10 1M
(∗1)
2
9 3
2
B1
Hazard SW
3
H7 Hazard Warning Signal SW Assembly
F4 Front Turn Signal Lamp (RH)
(∗1)
F3 Front Turn Signal Lamp (LH)
LG–B
E
(∗1)
W–B
7
(∗1)
W–B
(∗1)
W–B
35 2A
33 2A
38 2A
W–B
W–B
W–B(∗1) LG(∗1) Y(∗1)
W–B W–B
W–B W–B
W–B
EB
W–B
W–B
W–B
EA
1
J13 Junction Connector IE
111 TOYOTA TACOMA (EM01D0U)
(USA)
19 2A
3 2A
P
2 R–B
1 2A
20 IA1
3 12 B 32 A
(USA)
2 A
W–B
W–B
112
TOYOTA TACOMA (EM01D0U) (USA)
(USA)
(USA)
2
R–B
2
(USA)
2
P
2
10A HEAD (LO RH)
1
(USA)
3
10A HEAD (HI RH)
1
Head
1 2
High Beam
C 9(A), C10(B) Combination Meter
2 10A HEAD (LO LH)
10A HEAD (HI LH)
2
R–B
2
R–W
2
W–B
W–B
R–Y
P
1
H2 Headlamp (RH)
2 2A
P 2
W–B
W–B
H1 Headlamp (LH)
P
W
R–B
W
R–B
Headlight W
W
R–B
R–B
2
1
2 2
22 2A
(USA)
R–B
20 2A
R–B
1 35 IA1
System Outline (w/ daytime running light) ∗ This system is designed to automatically activate the turn signal lights during the daytime to keep the car highly visible to other vehicles. This system is controlled by the body ECU. This system makes use of the turn signal lights as daytime running lights. For this reason, when the turn signal lights are operated, the daytime running lights function is interrupted momentarily, which, however, will be brought back into operation as soon as the interposed operation is over. ∗ This system is enabled when the conditions given below are met. A) Ignition switch ON condition B) Turn signal lamp switch OFF condition C) Hazard lamp switch OFF condition D) Light control switch OFF condition E) Parking brake switch OFF condition (Parking brake out of operating condition)** **: This system does not become active when the parking brake switch is ON. However, once the OFF signal of the parking brake switch is input into the body ECU, this system will become active thereafter, regardless of whether the parking brake switch is ON or OFF. : Parts Location Code
See Page
B5
A
44
C9
A
44
C10
B
44
C11
44 40 (1GR–FE)
F3
42 (2TR–FE)
F4
40 (1GR–FE)
Code F4 G2 H1 H2
See Page
Code
42 (2TR–FE)
See Page
H7
40 (1GR–FE)
45
J1
45
42 (2TR–FE)
J4
A
45
41 (1GR–FE)
J5
B
45
43 (2TR–FE)
J13
45
41 (1GR–FE)
P6
45
43 (2TR–FE)
T11
45
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1B 1C
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
29
Relay Wire and Driver Side J/B (Lower Finish Panel)
1H 1I 1J 1L 1M 2A
24
Engine Room J/B (Engine Compartment Left)
2C
24
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
DB
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
DC DD
: Connector Joining Wire Harness and Wire Harness Code EB1
See Page 52 (1GR–FE) 53 (2TR–FE)
Joining Wire Harness and Wire Harness (Connector Location) Engine No.2 Wire and Engine Room Main Wire (Inside of Engine Room R/B)
IA1
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
IJ1
55
Instrument Panel Wire and Instrument Panel Wire (Right Kick Panel)
113 TOYOTA TACOMA (EM01D0U)
Headlight : Ground Points Code EA EB
See Page 52 (1GR–FE) 53 (2TR–FE) 52 (1GR–FE) 53 (2TR–FE)
Ground Points Location Front Right Fender Front Left Fender
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
IE
54
Right Kick Panel
114 TOYOTA TACOMA (EM01D0U)
Memo
115 TOYOTA TACOMA (EM01D0U)
Front Fog Light (BAT)
15A FR FOG
2
G
R
R W
R
R
2
2
1
1
3
2
2
5
2
2
R–B
Y–B
FR FOG Relay
5
2 1 2C
2
4
DIM Relay 5
2
2
3
2 2
R–B
1
HEAD Relay
3
2
W
2
2
2
1 21 2A 10A HEAD (LO RH) 22 2A
24 2A
23 2A
LG
LG 25 2A
LG
L 26 IA1
L
R–B
B
2
R–B
2
F2 Fog Lamp (Front RH)
F1 Fog Lamp (Front LH)
Battery
F16 Fog Lamp SW
3 1
2
1
2
W–B
W–B
W–B
4
7 A
5 B
W–B
W–B
W–B
33 2A
W–B
J 4(A), J 5(B) Junction Connector
36 2A
W–B
IC
116 TOYOTA TACOMA (EM01D0U)
EA
EB
: Parts Location Code
See Page
F1
40 (1GR–FE)
F2
40 (1GR–FE)
Code
See Page
F16 J4
44 A
Code J5
See Page B
45
45
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
2A
24
Engine Room J/B (Engine Compartment Left)
2C
24
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
: Connector Joining Wire Harness and Wire Harness Code IA1
See Page 54
Joining Wire Harness and Wire Harness (Connector Location) Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
: Ground Points Code
See Page
Ground Points Location
EA
52 (1GR–FE)
Front Right Fender
EB
52 (1GR–FE)
Front Left Fender
IC
54
Instrument Panel Brace RH
117 TOYOTA TACOMA (EM01D0U)
6 A
IC
EB
EA
5 B
W–B
BD
118
TOYOTA TACOMA (EM01D0U) 2
3 BE2
(∗1)
W–B
G
2
1
3 2
1 BE2
L3 License Plate Lamp (RH)
(∗1)
G (∗2)
G
(∗1)
G
(∗1)
G
G (Canada)
2
(∗1)
1
W–B
2
L2 License Plate Lamp (LH)
G (∗1)
G (∗2) 4 BE2
(∗2)
W–B
(∗1)
W–B
3
(∗1)
W–B
2
Tail
G
(∗2)
Head
G
TAIL
R6 Rear Combination Lamp (RH)
2
G
2 1C
W–B
33 2A
G
L 2
W–B
37 2A
P3 Parking Lamp (RH)
6 1A
Tail
T
W–B
Tail H
W–B
EL 11 1C
R5 Rear Combination Lamp (LH)
18 1
W–B
C11 Combination SW G
G
19
W–B
OFF
W–B
8
P2 Parking Lamp (LH)
G
B 5(A) Body ECU 2
W–B
12
W–B
1
W–B
W–B
J 4(A), J 5(B) Junction Connector
Light Control SW
Taillight ∗ 1 : w/ Trailer Towing ∗ 2 : w/o Trailer Towing
(BAT)
50A J/B
(Canada)
G
7 1J
3 TAIL Relay
5
10A TAIL
TRLY 10 1D
13 A G
IJ1
1 2 BE2
Tail
G (Canada)
13 A
J 4(A) Junction Connector
12 A
(Canada)
W–B
C9 Combination Meter
G (Canada)
(Canada) G
40
2
2
J1 Junction Connector
IA
119
TOYOTA TACOMA (EM01D0U)
Taillight : Parts Location Code B5
See Page A
Code
44
L2
See Page
C9
44
C11
44
J1
45
49 (*3) 41 (1GR–FE)
J4
A
45
J5
B
45
P2 P3
48 (*2)
R5
48 (*2)
2
See Page 24
47 (*1) R6
43 (2TR–FE)
1A
43 (2TR–FE)
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1D
28
Frame Wire and Driver Side J/B (Lower Finish Panel)
1J
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2A
24
Engine Room J/B (Engine Compartment Left)
1C
: Connector Joining Wire Harness and Wire Harness Code IJ1 BE2
See Page 55
Joining Wire Harness and Wire Harness (Connector Location) Instrument Panel Wire and Instrument Panel Wire (Right Kick Panel)
56 (*1)
Frame No.3 Wire and Frame Wire (Behind the Trailer Socket)
57 (*2)
: Ground Points Code EA EB
See Page 52 (1GR–FE) 53 (2TR–FE) 52 (1GR–FE) 53 (2TR–FE)
Ground Points Location Front Right Fender Front Left Fender
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
56 (*1) BD
57 (*2)
Near the Rear Differential
58 (*3) * 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
48 (*2) 49 (*3)
41 (1GR–FE)
: Junction Block and Wire Harness Connector Code
48 (*2) 49 (*3)
: Relay Blocks Code
See Page 47 (*1)
46 (*1) L3
46 (*1)
L2
Code
49 (*3)
* 5 : Bench Seat
120 TOYOTA TACOMA (EM01D0U)
Memo
121 TOYOTA TACOMA (EM01D0U)
Illumination (IG)
(BAT) 10A IG1 NO. 2
G ∗ 1 : Separate Type Amplifier ∗ 2 : Built–in Type Amplifier ∗ 3 : w/ Downhill Assist Control
50A J/B
G
2
W–R
L
7 1J
6 1A
3
6 DA
10A TAIL
TAIL Relay
LG
2
5
19
19 1J
B 5(A) Body ECU
W–R
G
TRLY
LH
1
4 EAU
Steering Pad SW
13 DC
12 IL+2
S8 Spiral Cable
LG
G
2
14 1C
TAIL
J2 Junction Connector
13 A
13
10
7
11
2
IC
G
(∗3)
G
G 2
13
G–W
9
(∗3)
G–W
12
2
BR–W
W–B
W–B
J3 Junction Connector
J1 Junction Connector
W–B
J 4(A), J 5(B) Junction Connector
1
G–W W–B
12
5 B
2
1
ILL– 6
6 A
(w/ Auto LSD)
2
1
G–W
– 3
G–W
E 5
BR–W
Head
W–B
Tail
2
1
D5 Diff. Lock SW
OFF
1
(w/ Auto LSD)
T
T
D8 Downhill Assist Control SW
4
IG
A27 Auto LSD SW
G
1
F16 Fog Lamp SW
H
18
R4 Rheostat
Light Control SW
EL
LG
C11 Combination SW
IJ1
G
8
G
G
1
6
1 2
IA
122 TOYOTA TACOMA (EM01D0U)
W–B
2
W–B
BR–W
J3 Junction Connector
4
5
8
4 B 12 A 5 C
TOYOTA TACOMA (EM01D0U) 2 A (∗1) 10 B (∗2)
SWG ILL+
ILL–
GND 20 A (∗1) 7 B (∗2)
H7 Hazard Warning Signal SW Assembly G
G
W–R
G
G
J 4(A), J 5(B) Junction Connector
21 B
G–W
20 6 D 6 D
BR
Illumination
R 1(A), (B), R 2(C), R 3(D) Radio Receiver Assembly
C9 Combination Meter
G
4
BR–W
ILL– G
G
W–R
BR–W
8
G–W
ILL+
A18 A/T Shift Lever Illumination
3
J 4(A), J 5(B) Junction Connector
G–W
8
G–W
A16 A/C Control Assembly
G
G
G
G
G G
G
G
13 A 15 A 14 A 12 A
20 B
W–R
40
11 ILL+
10 ILL–
9 A
3 B
BR–W
W–B
ID
123
Illumination : Parts Location Code
See Page
Code
See Page
Code
44
D8
44
A18
44
F16
44
A27
44
H7
45
44
J1
45
C9
44
J2
45
C11
44
J3
45
R4
45
D5
44
45
S8
45
B5
A
J4
A
J5
See Page
A16
B
45
A
45
B
45
R2
C
45
R3
D
45
R1
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1A
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1J
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
DA
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
DC
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
1C
: Connector Joining Wire Harness and Wire Harness Code IJ1
See Page 55
Joining Wire Harness and Wire Harness (Connector Location) Instrument Panel Wire and Instrument Panel Wire (Right Kick Panel)
: Ground Points Code IA IC ID
See Page
Ground Points Location
54
Left Kick Panel
54
Instrument Panel Brace RH
124 TOYOTA TACOMA (EM01D0U)
Memo
125 TOYOTA TACOMA (EM01D0U)
W–B
3
3
W–B
W–B
5
Back–Up
R6 Rear Combination Lamp (RH)
Back–Up
R5 Rear Combination Lamp (LH)
R–W
R–W
R–W
R–W
R–W
P 1(A) Park/Neutral Position SW B 1(B) Back–Up Lamp SW Y
P
Back–Up Light (IG)
10A IG1
13 1H
12 IH1
2 A (A/T) 2 B (M/T)
1 A (A/T) 1 B (M/T)
6 IH1
1 ID2
5
BD
126
TOYOTA TACOMA (EM01D0U)
: Parts Location Code B1 P1
See Page
Code
40 (1GR–FE)
B
42 (2TR–FE)
R5
41 (1GR–FE)
A
See Page
Code
47 (*1)
R6
48 (*2)
See Page 48 (*2) 49 (*3)
49 (*3)
43 (2TR–FE)
R6
47 (*1)
: Junction Block and Wire Harness Connector Code 1H
See Page 29
Junction Block and Wire Harness (Connector Location) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
ID2
54
Frame Wire and Instrument Panel Wire (Left Kick Panel)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
: Ground Points Code
See Page
Ground Points Location
56 (*1) BD
57 (*2)
Near the Rear Differential
58 (*3) * 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
127 TOYOTA TACOMA (EM01D0U)
W–B
W–B
15 1C
(∗1) L
G–W
(∗1)
L 13 1D
4
3 5 1D 4 1F
L
L
4
(∗2)
3
BD
128
TOYOTA TACOMA (EM01D0U)
C15 Center Stop Lamp
STPO (∗1)
L
3
Stop
L
4
S10 Stop Lamp SW
5
(∗2)
L
2
(∗1)
(∗1)
G–W
G–W
LG (∗1)
14 1C
R6 Rear Combination Lamp (RH)
L
L
2
(∗1)
2
L
LG (∗1)
10A IG1 NO. 2
Stop
STP
1
(∗1)
STOP LP CTRL Relay
(IG)
W–B
W–B
7 A 14 B (∗2)
(∗1)
G–B 2
R5 Rear Combination Lamp (LH)
S 1(A), (B) Skid Control ECU with Actuator
Stop Light ∗ 1 : w/ VSC ∗ 2 : w/o VSC
(BAT)
10A STOP
2 2
13 DC
12 DC
2
2
1
2
16 A (∗1)
2 1B
STP2 45 A (∗1)
1
2
BA
: Parts Location Code
See Page
Code
46 (*1)
See Page
R5
48 (*2)
C15
S1
47 (*1)
49 (*3)
48 (*2)
S1
B
48 (*2)
R6 A
See Page A
47 (*1)
49 (*3) R5
Code
49 (*3)
S10
43 (2TR–FE) 41 (1GR–FE) 43 (2TR–FE) 45
41 (1GR–FE)
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1B
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1D
28
Frame Wire and Driver Side J/B (Lower Finish Panel)
1F
28
Floor No.2 Wire and Driver Side J/B (Lower Finish Panel)
DC
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
1C
: Ground Points Code
See Page
Ground Points Location
56 (*1) BA
57 (*2)
Floor Seat Cross Member LH
58 (*3) 56 (*1) BD
57 (*2)
Near the Rear Differential
58 (*3) * 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
129 TOYOTA TACOMA (EM01D0U)
1 2
W–B
2
BE
130
TOYOTA TACOMA (EM01D0U) 1
1
(∗2)
D16 Door Courtesy SW (Rear RH Lower Side) P–B
7 BF1
(∗2)
P–B
2
W–B
(∗2)
BF
(∗2)
W–B
IL1
(∗2)
(∗2)
9
P–B
8 1I
(∗2)
P–B
7 1F
D17 Door Courtesy SW (Rear RH Upper Side) P–B
IL1
(∗1, ∗2)
RCTY
22
6 1F
(∗1)
PCTY
20
(∗2)
D18 Door Courtesy SW (Rear RH)
DCTY
26
W–B
1
(∗2)
4
1 2 3 4
(∗2)
1
D13 Door Courtesy SW (Rear LH Lower Side) P–B
(∗2)
P–B
(BAT) ∗ ∗ ∗ ∗
W–B
(∗2)
2
P–B
P–B
1
(∗2)
2 BG1
(∗1)
P–B
(∗2)
R–B
R–B
IG
D14 Door Courtesy SW (Rear LH Upper Side) P–B
R–B
5
(∗2)
1
(∗2)
R–B
2 BF1
(∗1, ∗3)
(∗2)
G–Y
5
D15 Door Courtesy SW (Rear LH)
(∗2)
G–Y
G–Y
10A IG1 NO. 2
W–B
D12 Door Courtesy SW (Front Passenger' s Side)
1
(∗1, ∗3)
(IG)
(∗2)
W–B
D11 Door Courtesy SW (Driver' s Side)
Interior Light : Double Cab : Access Cab : Regular Cab : w/ Automatic Glare–Resistant EC Mirror
20A DR LCK
B 5(A) Body ECU
ALTB
15 1J 11 1F
6 BF1
7 BG1
(BAT)
(BAT)
7. 5A ECU–B
7. 5A DOME
2
2
B 5(A) Body ECU
6
13 1K
2 1E
7 1E
W
4 1C
W
16 1C
R
W
2
R
2
1
1
1
ECUB
7
ACTY 4 A
(∗4)
ILE
1
2
3
(∗4)
W–B
L W–B
W–B
W–B
4
BA
W–B
2
G–W
BD
M3 Map Lamp
18
OFF ON
DOOR
R7 Room Lamp (Center)
II1
Door
1
C9 Combination Meter
W–B
9 1E
L
W–B
12 1E 11 1E
(∗4)
18 1H
W–B
10 1F
W–B
8 1D
W–B
G–W
GND
J1 Junction Connector IA
131 TOYOTA TACOMA (EM01D0U)
Interior Light : Parts Location Code B5
See Page A
C9 D11
D12
Code
See Page
44
D12
49 (*3)
44
D13
48 (*2)
46 (*1)
D14
48 (*2)
48 (*2)
D15
46 (*1)
49 (*3)
D16
48 (*2)
46 (*1)
D17
48 (*2)
48 (*2)
D18
46 (*1)
Code J1 M3
2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
See Page
Junction Block and Wire Harness (Connector Location)
1C
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1D
28
Frame Wire and Driver Side J/B (Lower Finish Panel)
1E
28
Roof Wire and Driver Side J/B (Lower Finish Panel)
1F
28
Floor No.2 Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
1H 1I 1J 1K
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
II1
55
Instrument Panel Wire and Instrument Panel Wire (Instrument Panel Brace RH)
IL1
55
Instrument Panel Wire and Floor Wire (Right Kick Panel)
BF1
57 (*2)
Rear Door No.2 Wire and Floor No.2 Wire (Under the Left Quarter Panel)
BG1
57 (*2)
Rear Door No.1 Wire and Floor Wire (Under the Right Quarter Panel)
: Ground Points Code IA
See Page 54
Ground Points Location Left Kick Panel
56 (*1) BA
57 (*2)
Floor Seat Cross Member LH
58 (*3) 56 (*1) BD
57 (*2)
Near the Rear Differential
58 (*3) BE
57 (*2)
Inside of the Access Door LH
BF
57 (*2)
Inside of the Access Door RH
* 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
48 (*2) 48 (*2) 49 (*3)
: Junction Block and Wire Harness Connector Code
46 (*1) 47 (*1)
R7
: Relay Blocks Code
See Page 45
* 5 : Bench Seat
132 TOYOTA TACOMA (EM01D0U)
Memo
133 TOYOTA TACOMA (EM01D0U)
Turn Signal and Hazard Warning Light (IG)
(BAT) # : Short Pin 10A IG1
15A TRN–HAZ
2 2
B–Y
1 1L
P
4 1B
B–Y
4 1L
1
B
IG
TFR 2
L–Y 2 1L
11 1I
11 1D
4 1D
Turn
1
3
3
W–B
2
1
R6 Rear Combination Lamp (RH)
2
L–B
27
Turn
L–Y
28 3
L–Y
L–B 3 1L
Turn RH
2
2 1M
L–B
F4 Front Turn Signal Lamp (RH)
3
W–B
F3 Front Turn Signal Lamp (LH)
12 1I
R–Y
5 1B
R–B
7 1B
1 1M
Turn LH
12 1M
LR 3
W–B
# (∗2)
R5 Rear Combination Lamp (LH)
# (∗2)
C9 Combination Meter
11 1M
LL 5
(∗1)
(∗1)
R–Y
TFL 4
R–B
T11 Turn Signal Flasher
6
W–B
W–B
35 2A
W–B
33 2A
W–B
W–B
W–B
W–B
EB
EA
BD
134 TOYOTA TACOMA (EM01D0U)
∗ 1 : w/ Daytime Running Light ∗ 2 : w/o Daytime Running Light
T11 Turn Signal Flasher
E
EL
ER
HAZ
DRL
10
5 1L
6 1L
10 1M
8 1L
18 1H
8 1J
18 1J
20 1I
11 1J
LG–B
R–W
13
5 A
EL
TR
LH
B 5(A) Body ECU
N RH
W
(∗1)
DRL
9 B1
Hazard SW
Turn SW
C11 Combination SW
W–B
TL
H7 Hazard Warning Signal SW Assembly
15
(∗1)
LG–R
7 1L
Y
LG
12
LG
8
Y
7
W–B
9
E 7
J1 Junction Connector 1
4 W–B
2
IA
W–B
6 A
5 B
W–B
J 4(A), J 5(B) Junction Connector
W–B
12
1
J13 Junction Connector
W–B
IC
IE
135 TOYOTA TACOMA (EM01D0U)
Turn Signal and Hazard Warning Light : Parts Location Code B5
See Page A
Code
44
See Page
H7
C9
44
C11
44
J4
A
45
40 (1GR–FE)
J5
B
45
F3
J1
42 (2TR–FE)
J13
40 (1GR–FE)
F4
R5
42 (2TR–FE)
Code
45
R5
45
47 (*1) R6
2
See Page 24
T11
47 (*1) 48 (*2)
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
1B
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1D
28
Frame Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
29
Relay Wire and Driver Side J/B (Lower Finish Panel)
24
Engine Room J/B (Engine Compartment Left)
1H 1I 1J 1L 1M 2A
: Ground Points Code EA EB
See Page 52 (1GR–FE) 53 (2TR–FE) 52 (1GR–FE) 53 (2TR–FE)
Ground Points Location Front Right Fender Front Left Fender
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
IE
54
Right Kick Panel
56 (*1) BD
57 (*2)
Near the Rear Differential
58 (*3) * 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
48 (*2) 49 (*3)
45
: Relay Blocks Code
See Page 49 (*3)
* 5 : Bench Seat
136 TOYOTA TACOMA (EM01D0U)
45
Memo
137 TOYOTA TACOMA (EM01D0U)
Light Auto Turn Off System (BAT)
L
(IG) 10A IG1 NO. 2
6 1A
7. 5A ECU–B
2
3
2
5
2
W
W
R
TAIL Relay
1
16 1C
29 IA1
19
14 A
5
TRLY
6
IG
ECUB
L
W
HRLY
B 5(A) Body ECU 2
2
G
TAIL 13 A
P
HEAD 17 A
2 50A J/B 1
5
DCTY
1
26
18 1H
7 1F
1
HEAD Relay
3
GND
2 9
IJ1
8
IJ1
G–Y T
G–Y
Light Control SW
B
C11 Combination SW
1 2C
EL
OFF
(∗3, ∗5)
18 H
W–B
20
1
(∗4)
G
P
140A ALT (∗1) 120A ALT (∗2)
2
2 BF1
Tail Head
D11 Door Courtesy SW (Driver' s Side)
6 A
5 B
W–B
J 4(A), J 5(B) Junction Connector
W–B
Battery
4
J1 Junction Connector IC
IA
138 TOYOTA TACOMA (EM01D0U)
1
(∗4)
G–Y
12
(∗4)
2
BE
TOYOTA TACOMA (EM01D0U)
2
1
1
(∗4)
D16 Door Courtesy SW (Rear RH Lower Side) P–B
7 BF1
(∗4)
P–B
1
(∗4)
(∗4)
P–B
9
D17 Door Courtesy SW (Rear RH Upper Side) P–B
IL1
(∗3)
P–B
P–B (∗3, ∗4)
RCTY
22
W–B
D18 Door Courtesy SW (Rear RH)
(∗4)
(∗4)
P–B
PCTY
20
(∗4)
1
D13 Door Courtesy SW (Rear LH Lower Side) P–B
(∗3)
P–B
(∗4)
R–B
R–B
6 1F 1 2 3 4 5
W–B
1
(∗4)
(∗4)
2
W–B
P–B
(∗4)
1
D14 Door Courtesy SW (Rear LH Upper Side) P–B
2 BG1
(∗4)
D15 Door Courtesy SW (Rear LH)
1
(∗4)
R–B
R–B
5
(∗3, ∗5)
8 1I
W–B
D12 Door Courtesy SW (Front Passenger' s Side)
∗ ∗ ∗ ∗ ∗ : w/ Trailer Towing : w/o Trailer Towing : Double Cab : Access Cab : Regular Cab
B 5(A) Body ECU
15 1J
IL1
7 BG1
2
BF
139
Light Auto Turn Off System System Outline When all doors are closed after opening some or all of them after the Ignition SW is turned from ON to OFF with the head and tail lamps ON, these lamps will remain ON for 30 seconds after the doors are closed and then go OUT automatically. Pressing the lock SW on a wireless controller twice in succession turns OFF the lamps instantly. : Parts Location Code B5
See Page A
Code
44
C11
D12
44
D11 D12
See Page
Code D17
48 (*2) 46 (*1)
49 (*3)
D18
46 (*1)
D13
48 (*2)
J1
48 (*2)
D14
48 (*2)
J4
A
45
49 (*3)
D15
46 (*1)
J5
B
45
46 (*1)
D16
48 (*2)
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1A 1C 1F
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
28
Floor No.2 Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
24
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
1H 1I 1J 2C
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IJ1
55
Instrument Panel Wire and Instrument Panel Wire (Right Kick Panel)
IL1
55
Instrument Panel Wire and Floor Wire (Right Kick Panel)
BF1
57 (*2)
Rear Door No.2 Wire and Floor No.2 Wire (Under the Left Quarter Panel)
BG1
57 (*2)
Rear Door No.1 Wire and Floor Wire (Under the Right Quarter Panel)
: Ground Points Code
See Page
Ground Points Location
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
BE
57 (*2)
Inside of the Access Door LH
BF
57 (*2)
Inside of the Access Door RH
* 1 : Double Cab
See Page
48 (*2)
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
140 TOYOTA TACOMA (EM01D0U)
45
Memo
141 TOYOTA TACOMA (EM01D0U)
Key Reminder (IG)
∗ 1 : Double Cab ∗ 2 : Access Cab ∗ 3 : Regular Cab
(BAT)
7. 5A GAUGE
7. 5A ECU–B
2 3 1J
R
2
V
16 1C
R
13 1K
1
C9 Combination Meter
21
7 1F
10 1K
G–B
G–Y
(∗1, ∗3)
U1 Unlock Warning SW
(∗2)
G–Y
2 BF1
D11 Door Courtesy SW (Driver' s Side)
W–B
5 1J
2
(∗2)
12 1J
G–Y
G–B
11
G–Y
12
1
1
W–B
W–B
W–B
W–B
2
2
J1 Junction Connector
1
IC
IA
142 TOYOTA TACOMA (EM01D0U)
System Outline Key Reminder System With the ignition key inserted in the key cylinder (Unlock warning SW on), the ignition SW still off and driver’s door open (Door courtesy SW on), when a signal is input to TERMINAL 12 of the combination meter, the combination meter operates, current flows from TERMINAL 1 of the combination meter to TERMINAL 2 GROUND and key reminder buzzer sounds. : Parts Location Code
See Page
C9
44
D11
46 (*1)
Code D11
See Page
Code
See Page
48 (*2)
J1
45
49 (*3)
U1
45
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
1C
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1F
28
Floor No.2 Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
1J 1K
: Connector Joining Wire Harness and Wire Harness Code BF1
See Page 57 (*2)
Joining Wire Harness and Wire Harness (Connector Location) Rear Door No.2 Wire and Floor No.2 Wire (Under the Left Quarter Panel)
: Ground Points Code
See Page
Ground Points Location
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
* 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
143 TOYOTA TACOMA (EM01D0U)
ECT and A/T Indicator for 1GR–FE (BAT)
(IG)
20A EFI
(IG)
(BAT) 10A IG1 NO. 2
15A IGN
10A STOP
2
2 14 1C
2
G–W
(∗1)
G–W
LG
(∗1)
O
L
∗ 1 : w/ VSC ∗ 2 : w/o VSC
LG
15 1I
(∗1)
2
13 DC
2
L
L
2
(∗1)
2
L
2
6 1C
5 DD
2 1B
3 DB
1
3
G–B
G–W
2
L
O
1
L
5
2
G–W
2
L
L
(∗2)
(∗1)
L
G–W
1 IA1
S10 Stop Lamp SW
4
LG (∗1)
10 IA1
5
L
L
1
(∗1)
12 DC
2
(∗1)
STOP LP CTRL Relay
2
8 E
3 E
9 E
EFI Relay
MREL
BATT
15 E STP
IGSW
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E) Engine Control Module THW
E2
VTA1
21 A
28 A
2
20 A
VC 23 A
M+ 5 A
M– 4 A
GE01 17 A
IF1
3
1
L
L
G–B
E2 Engine Coolant Temp. Sensor
BR
2
IF1
L
BR
2 1H
W–B
B
3 1H
(2WD)
B
W–B
B
1
11 2A 30 2A
VTA2 19 A
P
SEL 26 D
Y–B
2
+B2 2 E
(Shielded)
+B 1 E
G–W
2
L
3
5
5
4
2
1
VC
VTA2
M+
M–
B
BR
6 VTA
BR
W–B
(2WD)
10 IF1
W–B
W–B
BR
E2 3
9
IF1
BR
W–B
15 B
BR
J 5(B) Junction Connector
M 14 B
W–B
BR
IF1
6 1B
W–B
B
9 2A 33 2A
4
T1 Throttle Body Assembly
IF1 W–B BR BR
EA
EB
IC
144 TOYOTA TACOMA (EM01D0U)
(BAT)
(ST)
10A ETCS
7. 5A STA
2
2 2
V
2
V
T5 Transmission Revolution Sensor (Electronically Controlled Transmission)
6 2A
P1 Park/Neutral Position SW
V
2
1
V 18 PB
9 PB
L
P N 5
B–Y
1
B
3 2B
LG
T6 Transmission Revolution Sensor (Turbine)
4
2
4 2B
6 IA1
11 PA
R
L–R
Y–R
W–R
LG
V
B–Y
5 2B
26 B
34 B
27 B
35 B
7 E
8 B
11 C
SP2–
SP2+
NT–
+BM
NT+
NSW
STA
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E) Engine Control Module
L
OT2– 1 A
G 7 A
SL2+
SL2–
SLU+
SLU–
S1
S2
SR
SB
L–W 15 A
SL1–
B
8 A
SL1+
W
5 A
SR 9 B
BR
W–G
S2 10 B
LG
Y–B
G–R
S1 11 B
LG
13 A
SLU– 14 B
V
3 A
SLU+ 15 B
Y
11 A
SL2– 16 B
L
4 A
SL2+ 17 B
W–L
G–W 12 A
SL1– 18 B
P–L
SL1+ 19 B
R
R–B
G–B
SLT–
GR
6 A
SLT+
OT– 2 A
14 A
SLT– 12 B
G
9 A
SLT+ 13 B
OT2+
O
O
GR
Y–B 10 A OT+
THO2 32 B
L
THO1 24 B
E 1(A) Electronically Controlled Transmission Solenoid
BR BR
145 TOYOTA TACOMA (EM01D0U)
ECT and A/T Indicator for 1GR–FE
A19 Accelerator Position Sensor
R–W
VPA2
2
R
R–Y
4
EPA2
VCP2
3
B
1
GR–B
6
LG–B
5
VCPA
Y
L–W
VPA
R–B
EPA
L–B 13 IA1
12 IA1
11 IA1
7 IA1
8 IA1
R–Y
9 IA1
27 E
VPA2
G–Y
L–W
19 E
EPA2
R–Y
GR–B
21 E
VCPA
L–B
R–B
26 E
VPA
Y
R
18 E
EPA
B
R–Y
20 E
R–W
LG–B
G–Y
11 D
20 D
19 D
21 D
10 D
9 D
R
4
3
D
2
L
VCP2
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E) Engine Control Module TC
9 DB
CANH 33 D
2 DA
J 9(D), J10(E), J11(F) Junction Connector
W–B
W–B
W–B
W–B
W–B
BR
P–B
23 E
EOM
CANL
1 E
2 E
SPD
35 D
34 D
8 D
ST–Plug
OILW 29 D
P
ME01 3 B
12 PC 1 D
2 D
1 F
14
J14 Junction Connector
6 CANH
CANL
2
II1
2 PD
13
W–B
V–W
W–B
TC
L–W
13
Y–B
P–B
8
P
E05 6 B
V–W
E04 7 B
W–B
E03 4 B
W
E02 6 A
B
E01 7 A
W–B
E1 1 C
D4 Data Link Connector 3
P
J13 Junction Connector
2 1
EE
EF
IE
146 TOYOTA TACOMA (EM01D0U)
V–W
(IG)
(BAT)
7. 5A GAUGE
7. 5A ECU–B
2 2
V
R
3 1J
R–W
B
B
Y
Y
L–B
L–B
R–Y
R–Y
G–Y
G–Y
R
R–Y
R–W
36 IA1
R–Y
16 1C
12 A (w/ VSC) 18 B (w/o VSC)
S 1(A), (B) Skid Control ECU with Actuator
13 1K
R–Y
R
21 A
6 A
1 A
39 A
P
Speed Control 19 A
V–W
A/T OIL TEMP
C 9(A), C10(B) Combination Meter
B
Speed Sensor (Rear)
RR– 19 A (w/ VSC) 45 B (w/o VSC)
O
BR
RR+ 5 A 44 B
Y
RL– 6 A 16 B
P
RL+ 20 A 15 B
Speed Sensor (Front LH, RH)
P
FR– 17 A 39 B
L
FR+ 3 A 40 B
R
FL– 4 A 9 B
G
FL+ 18 A 10 B
V
SP1
V–W
147 TOYOTA TACOMA (EM01D0U)
ECT and A/T Indicator for 1GR–FE (IG)
P
10A IG1
12 IH1 13 1H
Y
P
P1 Park/Neutral Position SW
2 RB
DL
NL
RL
PL
3
7
9
1
6
G–B
L–W
Y
L–B
R–W
R–W
2L
8
R–Y
LL
B Y L–B
L–B
4
10
9
2
ATL
NSSL
NSSD
ATD
R–W
L–W
R–W
G–B
6 PB
5 PB
4 A
2
C 9(A), C10(B) Combination Meter
R–W
G–B
3 B
2 B
1 B
W
B
1
W
IJ1
6 B
5 B
3
4
4 B D
N
2 A
W–B
L
7 B
8 PC
B
V 8 B
7 PC
3
IJ1
2
1 PC
W
AT4
S7 Shift Lock Control ECU
8 PB
L–W
V
5
17 PC
B
AT2
9 B
3 PC
R–Y
14 PE 15 PE
G–Y
12 PE
B
3 PB 13 PC
Y
G–Y
4 PC
8 B
Y
L–B
Y 1 PB
J 4(A), J 5(B) Junction Connector
7 PB 16 PC
B
15 PC
14 PC
L–B
R–Y
G–Y
R–Y
R–Y
2
J1 Junction Connector IA
148 TOYOTA TACOMA (EM01D0U)
R
P
System Outline Previous automatic transmissions have selected each gear shift using mechanically controlled throttle hydraulic pressure, governor hydraulic pressure and lock–up hydraulic pressure. The electronically controlled transmission, however, electrically controls the line pressure, throttle pressure, lock–up pressure and accumulator pressure etc. through the solenoid valve. The electronically controlled transmission is a system which precisely controls gear shift timing and lock–up timing in response to the vehicle’s driving conditions and the engine condition detected by various sensors. It makes smooth driving possible by shift selection for each gear which is the most appropriate to the driving conditions at that time, and by preventing downing, squat and gear shift shock when starting off. 1. Gear Shift Operation When driving, the engine warm up condition is input as a signal to TERMINAL THW of the engine control module from the engine coolant temp. sensor and the vehicle speed signal from vehicle speed sensor is input to TERMINAL SP2+ of the engine control module. At the same time, the throttle valve opening signal from the throttle position sensor is input to TERMINALS VTA1 and VTA2 of the engine control module as throttle angle signal. Based on these signals, the engine control module selects the best shift position for the driving conditions and sends current to the electronically controlled transmission solenoid. 2. Line Hydraulic Pressure Control The engine control module adjusts the line hydraulic pressure to the optimal level by controlling TERMINAL SLT+ of the module according to the engine torque data. This realizes the smooth gear shifting. 3. High Response Gear Shifting Control The engine control module performs the high response engine torque up control to control the ignition–timing lag as well as opening the electronic throttle when shifting down. By doing this, the gear shifting is performed in a short period of time. Moreover, the engine control module uses the orifice switching control, which optimizes the speed of applying and reducing the hydraulic pressure. And it realizes the fine shifting condition by applying and reducing hydraulic pressure slowly when the gear shifting shock is important and quickly when the high response is required. 4. Clutch Hydraulic Pressure Control The engine control module controls the clutch operation in the optimal timing and with the best hydraulic pressure according to the engine torque data and the number of the clutch revolution 5. Lock–Up and Flexible Lock–Up Control The engine control module carries out the lock–up control by controlling the TERMINAL SLU+ of the module according to the shift position, vehicle speed, throttle opening degree and running conditions. The engine control module also steadily keeps applying the lock–up clutch a delicate slippage to improve the transmission efficiency (Fuel efficiency) of the torque converter. 6. Stop Lamp SW Circuit If the brake pedal is depressed (Stop lamp SW on) when driving in lock–up condition, a signal is input to TERMINAL STP of the engine control module. The engine control module operates and cuts the current to the solenoid to release lock–up. 7. AI–Shift Control The engine control module judges whether the road is downslope or upslope by detecting the throttle opening degree or the vehicle’s speed. Moreover it can expect the winding roads by detecting the turning condition of the vehicle. The engine control module keeps unnecessary shifting up from the fourth gear from operating and carries out the automatic shifting down to the third gear in order to control the vehicle running according to the road conditions. The engine control module also reads the driver’s intention during driving from his (her) accelerating operation and the running conditions of the vehicle. As a result of that, ideal shifting patters for each driver are automatically selected without any switching operations. : Parts Location Code
See Page
A19
E7 E8
C9
A
44
C10
B
44
D4 E1
A E2
Code
44
See Page
Code
D
44
J14
E
44
P1
J1
45
S1
See Page 45 41 (1GR–FE) A
41 (1GR–FE)
B
41 (1GR–FE)
44
J4
A
45
40 (1GR–FE)
J5
B
45
S7
45
40 (1GR–FE)
J9
D
45
S10
45
E4
A
44
J10
E
45
T1
41 (1GR–FE)
E5
B
44
J11
F
45
T5
41 (1GR–FE)
E6
C
44
45
T6
41 (1GR–FE)
J13
149 TOYOTA TACOMA (EM01D0U)
ECT and A/T Indicator for 1GR–FE : Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1B
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2A
24
Engine Room J/B (Engine Compartment Left)
2B
24
Engine Wire and Engine Room J/B (Engine Compartment Left)
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
1C 1H 1I 1J 1K
DA DB DC DD PA PB PC PD PE
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IF1
55
Engine Wire and Engine Wire (Behind the Glove Box)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
II1
55
Instrument Panel Wire and Instrument Panel Wire (Instrument Panel Brace RH)
IJ1
55
Instrument Panel Wire and Instrument Panel Wire (Right Kick Panel)
: Ground Points Code
See Page
Ground Points Location
EA
52 (1GR–FE)
Front Right Fender
EB
52 (1GR–FE)
Front Left Fender
EE
52 (1GR–FE)
Rear Side of Right Bank Cylinder Block
EF
52 (1GR–FE)
Rear Side of Left Bank Cylinder Block
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
IE
54
Right Kick Panel
150 TOYOTA TACOMA (EM01D0U)
Memo
151 TOYOTA TACOMA (EM01D0U)
ECT and A/T Indicator for 2TR–FE (BAT)
(IG)
20A EFI
(IG)
(BAT) 10A IG1 NO. 2
15A IGN
10A STOP
2
2 14 1C
2
G–W
(∗1)
G–W
LG
(∗1)
O
L
∗ 1 : w/ VSC ∗ 2 : w/o VSC
LG
15 1I
(∗1)
2
13 DC 2
1 IA1
S10 Stop Lamp SW
5 DD
2 1B
3 DB
2
L
(∗1)
2
L
6 1C 1
3 2
L
2
(∗1)
2
G–B
G–W
4
LG (∗1)
L
5
(∗1)
L
L
10 IA1
1
STOP LP CTRL Relay
12 DC
2
L
8 D
3 D
9 D
EFI Relay
MREL
BATT
L
L O
1
L
5
2
G–W
2
(∗1)
(∗2)
4 C STP
IGSW
E 4(A), E 5(B), E 7(C), E 8(D) Engine Control Module THOC
E02 6 A
E2
THW
22 A
32 A
2
2
VTA1
28 A
20 A
VC 18 A
VTA2
M+ 5 A
M– 4 A
GE01 8 A
L
19 A
BR
L
P
(Shielded)
IF1
L
1
G–W
IF1
L
G–B
E2 Engine Coolant Temp. Sensor
BR
W–B
W–B
BR
1
3
1
BR
6 1B
A2 A/T Fluid Temp. Sensor
9 2A 33 2A
B
3 1H
W–B
11 2A 30 2A
B
E01 7 A
Y–B
E1 3 A
2
W–B
B
2
+B 1 D
GR
2
B
3
6
5
4
2
1
VTA
VC
VTA2
M+
M–
BR
J12 Junction Connector
W–B
M 8
5
1
E2
IF1
BR
W–B
W–B
BR
W–B
3
EA
EB
IF1
W–B
BR
W–B
W–B
BR
4
T1 Throttle Body Assembly
EH
152 TOYOTA TACOMA (EM01D0U)
BR
(BAT)
(ST)
10A ETCS
7. 5A STA
2
2 2
V 2
V
4
L
EPA2
VPA2
18 PB
9 PB
4 2B
VCP2
R
R–B
GR–B
L–W
1
R–Y
3
LG–B
2
13 IA1
12 IA1
11 IA1
7 IA1
8 IA1
9 IA1
5 2B
R
R–B
GR–B
L–W
LG
V
11 IH1
20 D
18 D
26 D
21 D
19 D
27 D
7 D
30 D
12 D
2
35 B
27 B
B–Y
R–Y
B–Y
3 PD
LG–B
6 IA1
1
R
VCPA 4
B–Y
VPA 6
V
EPA 5
5
V
LG
N 3 2B
G
P
V2 Vehicle Speed Sensor (Electronically Controlled Transmission)
6 2A
P1 Park/Neutral Position SW
B
A19 Accelerator Position Sensor
EPA
VPA
VCPA
EPA2
VPA2
+BM
VCP2
NSW
SP2+
STA
SP2–
9 DB
CANH 33 C
OT2+
SLT+
SLT–
SLU+
SLU–
S1
S2
P–B
B
8 B
W
4 B
BR
7 B
Y
3 B
G
6 B
O
2 B
O
13 TC
1 E
2 E ST–Plug
1 D
2 D
1 F
6
14
CANH
1
CANL
13
E 1(B) Electronically Controlled Transmission Solenoid
W–B
O
D4 Data Link Connector 3
OT2–
BR
2
J13 Junction Connector
5 B
22 D
W–B
1 B
J 9(D), J10(E), J11(F) Junction Connector
W–G
LG
V
R–B
G–B
Y–B
2 DA
EC
CANL 34 C
J14 Junction Connector
TC 17 C
W–B
S2 8 B
P–B
S1 9 B
W–B
SLU– 10 B
W
SLU+ 11 B
L–W
SLT– 13 B
B
SLT+ 12 B
Y–B
THO1 24 B
L–W
E 4(A), E 5(B), E 7(C), E 8(D) Engine Control Module
1
IE
153 TOYOTA TACOMA (EM01D0U)
ECT and A/T Indicator for 2TR–FE (IG)
(BAT)
7. 5A GAUGE
7. 5A ECU–B
2 2
V
R
3 1J
R–W Y R–Y
G–Y
11 C
19 C
10 C
21 C
9 C
R
3
2
D
L
G–Y
SPD
36 IA1 16 1C
FL–
RL–
FR–
RR+
20 A 15 B
6 A 16 B
5 A 44 B
B
RL+
FR+
BR
FL+
12 A (w/ VSC) 18 B (w/o VSC)
13 1K
SP1
RR– 19 A (w/ VSC) 45 B (w/o VSC)
R
P 17 A 39 B
R–Y
L 3 A 40 B
V
R 4 A 9 B
R–Y
G 18 A 10 B
Y
2
S 1(A), (B) Skid Control ECU with Actuator
8 C
V–W
ME01 3 B
W–B
E04 7 B
W–B
E03 4 B
W–B
Y
21 A
6 A
1 A
12 PC
O
T6 Transmission Revolution Sensor (Turbine)
NCO– 26 B
L
NCO+ 34 B
R–Y
Speed Sensor (Front LH, RH)
E 4(A), E 5(B), E 7(C), E 8(D) Engine Control Module
R
L–B
R–Y
Y
R–W
L–B
1
Speed Control 19 A
V–W
Speed Sensor (Rear)
C 9(A), C10(B) Combination Meter
V–W
2 PD
EG
154 TOYOTA TACOMA (EM01D0U)
(IG)
P
10A IG1
12 IH1 13 1H
Y
P
P1 Park/Neutral Position SW
2 RB
DL
NL
RL
PL
3
7
9
1
6
G–B
R–W
L–B
R–Y
R–W
G–W
2L
8
G–Y
LL
Y R–Y L–B
3 PC
11 PE
G–B
5 PC
R–W
R–Y
L–B
13 PC
G–W
15 PE
3 PB 15 PC
R–W
4 PC
7 PB
17 PC
8 PB
6 PB
5 PB
1 PC
7 PC
8 PC
Y
2 PB 16 PC
Y
14 PC
R–Y
L–B
G–Y
G–Y
3 B
2 B
1 B
W
G–B
2
R–W
ATD
9
L–W
NSSD L–B
S7 Shift Lock Control ECU
Y
R–Y
L–B
G–Y
3 AT3
IJ1
W
1
7 B
6 B 2
C 9(A), C10(B) Combination Meter
4 B
3
D
N
R
P
2 A
W–B
L
5 B
2
J1 Junction Connector IA
155 TOYOTA TACOMA (EM01D0U)
ECT and A/T Indicator for 2TR–FE System Outline Previous automatic transaxle have selected each gear shift using mechanically controlled throttle hydraulic pressure, governor hydraulic pressure and lock–up hydraulic pressure. The electronically controlled transmission, however, controls the line pressure and lock–up pressure etc. electrically, through the solenoid valve. The engine control module controls each solenoid valve based on the input signals from each sensor, which makes smooth driving possible by shift selection for each gear that is most appropriate to the driving conditions at that time. 1. Gear Shift Operation During driving, the engine control module selects the shift for each gear which is most appropriate to the driving conditions, based on input signals from the engine coolant temp. sensor to TERMINAL THW of the engine control module, and also the input signals to TERMINAL SPD of the engine control module from the vehicle speed sensor devoted to the electronically controlled transmission. Current is then output to the electronically controlled transmission solenoid. When shifting to 1st speed, the current flows from TERMINAL S1 of the engine control module to TERMINAL (B) 4 of the solenoid to GROUND, and from TERMINAL S2 of the engine control module to TERMINAL 8 of the electronically controlled transmission solenoid to GROUND, and continuity to the No.1 and No.2 solenoid causes the shift. For 2nd speed, the current flows from TERMINAL S1 of the engine control module to TERMINAL (B) 4 of the solenoid to GROUND, and from TERMINAL S2 of the engine control module to TERMINAL (B) 8 of the solenoid to GROUND, and continuity to solenoid No.1 and No.2 causes the shift. For 3rd speed, there is no continuity No.1 solenoid, only to No.2, causing the shift. Shifting into 4th speed (Overdrive) takes place when there is no continuity to both No.1 and No.2 solenoid. 2. Stop Lamp SW Circuit If the brake pedal is depressed (Stop lamp SW on) when driving in lock–up condition, a signal is input to TERMINAL STP of the engine control module, the engine control module operates and continuity to the lock–up solenoid is cut. 3. AI–Shift Control The engine control module judges whether the road is downslope or upslope by detecting the throttle opening degree or the vehicle’s speed. Moreover it can expect the winding roads by detecting the turning condition of the vehicle. The engine control module keeps unnecessary shifting up from the fourth gear from operating and carries out the automatic shifting down to the third gear in order to control the vehicle running according to the road conditions. The engine control module also reads the driver’s intention during driving from his (her) accelerating operation and the running conditions of the vehicle. As a result of that, ideal shifting patters for each driver are automatically selected without any switching operations. : Parts Location Code
See Page
A2 A19
Code
42 (2TR–FE)
E7
44
E8
See Page C
44
D
44
S1
43 (2TR–FE) A
43 (2TR–FE)
B
43 (2TR–FE)
A
44
C10
B
44
J9
D
45
S7
45
44
J10
E
45
S10
45
42 (2TR–FE)
J11
F
45
T1
43 (2TR–FE)
E1
B E2
45
See Page
P1
C9 D4
J1
Code
42 (2TR–FE)
J12
45
T6
43 (2TR–FE)
E4
A
44
J13
45
V2
43 (2TR–FE)
E5
B
44
J14
45
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
156 TOYOTA TACOMA (EM01D0U)
: Junction Block and Wire Harness Connector Code 1B
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2A
24
Engine Room J/B (Engine Compartment Left)
2B
24
Engine Wire and Engine Room J/B (Engine Compartment Left)
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
1C 1H 1I 1J 1K
DA DB DC DD PB PC PD PE
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IF1
55
Engine Wire and Engine Wire (Behind the Glove Box)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
IJ1
55
Instrument Panel Wire and Instrument Panel Wire (Right Kick Panel)
: Ground Points Code
See Page
Ground Points Location
EA
53 (2TR–FE)
Front Right Fender
EB
53 (2TR–FE)
Front Left Fender
53 (2TR–FE)
Rear Side of Cylinder Block
IA
54
Left Kick Panel
IE
54
Right Kick Panel
EG EH
157 TOYOTA TACOMA (EM01D0U)
Cruise Control for 1GR–FE P (BAT)
(IG)
(M/T)
(IG) 10A IG1 NO. 2
10A IG1
20A EFI
9 1J
2 2
14 1C
LG
P
(∗1)
L
∗ 1 : w/ VSC ∗ 2 : w/o VSC
(A/T)
13 1H LG (∗1) 13 DC 12 IH1
14 DC 12 DC
1
C14 Cruise Control Clutch SW
P1 Park/Neutral Position SW
L
(A/T)
Y
LG (M/T)
2
D 7
LG (∗1) L
L
L
L–B
(M/T)
G–W
G–W
L–B
(A/T)
2
5 DD
6 1C
3 DB
2 1B
3 PB 40 IA1
1 IA1
5
L(∗1)
15 PE
L–B
G–W
2
L
16 PC 2
L
10 IA1
L–B
L(∗2)
(M/T)
1
8 E
EFI Relay
MREL
3 E
15 E
21 D
BATT
STP
D
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E) Engine Control Module 3
2
+B 1 E
SEL
E2
26 D
VTA1
28 A
20 A
VC 23 A
VTA2
M+
19 A
5 A
M– 4 A
GE01 17 A
2
BR
L
P
(Shielded)
IF1
L
3
G–W
IF1
IF1
L
G–B
5 11 2A 30 2A
1
BR
2 1H
(2WD)
B
3 1H
W–B
B
W–B
B
L
2
+B2 2 E
BR 9
IF1
4
6
5
4
2
1
VTA
VC
VTA2
M+
M–
M
IF1
W–B
BR
J5 Junction Connector
15
10 IF1
BR
BR
B
W–B
14
W–B
6 1B
W–B
B
9 2A 33 2A
E2
(2WD)
W–B
W–B
W–B
3
T1 Throttle Body Assembly
BR BR
EA
EB
IC
158 TOYOTA TACOMA (EM01D0U)
P
P
(M/T)
(M/T)
(BAT)
(IG)
(BAT)
15A IGN
10A STOP
2
10A ETCS
2 2 15 1I
O
2 8 1C
3 2
1
4
2
L
(∗1)
L
(∗1)
(∗1)
G–B
LG
3
L
2
O
2
2
V–W
4
G–W
5
(∗2)
2
1
S10 Stop Lamp SW
STOP LP CTRL Relay
2
(∗1)
G–W
LG (∗1)
6 IA1
2 IA1
V–W
O
L(∗2)
LG
L(∗1)
16 E
9 E
ST1–
7 E
IGSW
+BM
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E) Engine Control Module
L
OT2– 1 A
G 7 A
SL2+
SL2–
SLU+
SLU–
S1
S2
SR
SB
L–W 15 A
SL1–
B
8 A
SL1+
W
5 A
SR 9 B
BR
W–G
S2 10 B
LG
Y–B
G–R
S1 11 B
LG
13 A
SLU– 14 B
V
3 A
SLU+ 15 B
Y
11 A
SL2– 16 B
L
4 A
SL2+ 17 B
W–L
G–W 12 A
SL1– 18 B
P–L
SL1+ 19 B
R
R–B
G–B
SLT–
GR
6 A
SLT+
OT– 2 A
14 A
SLT– 12 B
G
9 A
SLT+ 13 B
OT2+
O
O
GR
Y–B 10 A OT+
THO2 32 B
L
THO1 24 B
E 1(A) Electronically Controlled Transmission Solenoid
BR BR
159 TOYOTA TACOMA (EM01D0U)
Cruise Control for 1GR–FE P
P
(M/T)
(M/T)
D4 Data Link Connector 3 A19 Accelerator Position Sensor
CANH
TC
VPA2
VCP2
1 E
2 E
1 F
20 E
18 E
26 E
21 E
19 E
27 E
23 E
33 D
34 D
EPA
VPA
VCPA
EPA2
VPA2
VCP2
CANH
TC
W–B
W
9 DB
B
9 IA1
P–B
L–W
8 IA1
L–W
GR–B
7 IA1
GR–B
R–B
11 IA1
ST–Plug
R–B
R
12 IA1
2 D
R
13 IA1
1 D
R–Y
2 DA
LG–B
R–Y
1
LG–B
3
L–W
EPA2 2
14
Y–B
VCPA 4
J 9(D), J10(E), J11(F) Junction Connector
VPA 6
P–B
EPA 5
CANL
6
13
CANL
E 4(A), E 5(B), E 6(C), E 7(D), E 8(E) Engine Control Module E02
E03 4 B
E04 7 B
E05 6 B
ME01
EOM
CCS 2 D
3 B
SPD
35 D
8 D
12 PC
2
BR–W
2
1
PI 18 D
V–W
II1
W–B
W–B
W–B
W–B
W–B
W–B
W–B
BR
BR–W
6 A
LG
E01 7 A
W–B
E1 1 C
7
II1
2 PD ECC
CCS Main
2
J14 Junction Connector
8 PF
13
EE
EF
LG
V–W
+ RES
LG
W–B
– SET
V–W
CANCEL
J13 Junction Connector
Cruise Control SW
S8 Spiral Cable
W–B
18 PA
EE
160 TOYOTA TACOMA (EM01D0U)
2
1
IE
W–B
P (M/T)
(IG) 7 PF
(BAT)
7. 5A GAUGE
7. 5A ECU–B
2 4 PA
P 1
R
IG+
V
V1 Vehicle Speed Sensor (Combination Meter)
2
(M/T)
3 1J
SE
SI
2
3 8 IH1
R–Y(M/T)
9 IH1
W(M/T)
R–Y (M/T) W (M/T)
R
R–Y
6
(M/T)
R–Y
R–Y
12 A (w/ VSC) 18 B (w/o VSC)
S 1(A), (B) Skid Control ECU with Actuator
21
(A/T)
36 IA1
(A/T)
13 1K
V
R–Y
(A/T)
16 1C
1
Speed Sensor (Front LH, RH)
19
2
V–W
W–B
Speed Control
(M/T)
3
W
CRUISE 24
LG
RR– 19 A (w/ VSC) 45 B (w/o VSC)
O
B
RR+ 5 A 44 B
BR
RL– 6 A 16 B
Y
RL+ 20 A 15 B
P
FR– 17 A 39 B
L
FR+ 3 A 40 B
R
FL– 4 A 9 B
G
FL+ 18 A 10 B
C9 Combination Meter
SP1
Speed Sensor (Rear)
LG V–W
2
J1 Junction Connector IA
161 TOYOTA TACOMA (EM01D0U)
Cruise Control for 1GR–FE System Outline The cruise control system is a constant vehicle speed controller in which control of the switch on the instrument panel makes it possible to automatically adjust the opening of the engine throttle valve without depressing of the accel pedal. 1. Set Operation When the main SW is turned on, the system starts preparations necessary for the cruise control and turns on the indicator light in the combination meter. 2. Set Speed Control When the – SET SW is operated with the cruise control main SW turned on during travelling, the constant vehicle speed is controlled. 3. Coast Control When the – SET SW is kept turned on during cruise control travelling, the engine control module controls the throttle valve to decelerate the vehicle. Every time the – SET SW is turned on instantaneously, the vehicle speed is decelerated approximately 1.6 km/h. 4. Accel Control When the + RES SW is kept turned on during cruise control travelling, the engine control module controls the throttle valve to accelerate the vehicle. Every time the + RES SW is turned on instantaneously, the vehicle speed is accelerated approximately 1.6 km/h. 5. Resume Control When the vehicle speed is within the low speed limit (Approximately 40 km/h, 25 mph) if the cruise control is cancelled, use of the + RES SW accelerates the vehicle to the speed level used before canceling the cruise control. 6. Manual Cancel Mechanism If any of the following signals is input during cruise control travelling, the cruise control is cancelled. ∗ The stop lamp SW is turned on. ∗ The CANCEL SW is turned on. ∗ The main SW is turned off. ∗ Gear is shifted from D position to other positions than D (A/T). ∗ Clutch pedal depresed (M/T). 7. Auto Cancel Function If any of the following conditions is encountered, the cruise control is automatically cancelled. ∗ The stop lamp SW wiring is faulty or short–circuited. ∗ The vehicle speed signal is faulty. ∗ The electronically controlled throttle malfunctions. ∗ The actual vehicle speed becomes –16 km/h slower than the set speed. ∗ The actual vehicle speed becomes slower than the minimum speed limit. 8. Overdrive Control Function Overdrive is sometimes cut off on gradients during cruise control driving. When end of climbing gradient is determined by throttle opening degree information after overdrive is canceled, control is reset to overdrive condition after overdrive resetting timer operation. Also, when overdrive is cut off during accelerator resuming control, control is reset to overdrive condition when accelerator resuming control is finished. : Parts Location Code
See Page
Code
A19
44
E7 E8
See Page
Code
D
44
J14
E
44
P1
C9
44
C14
44
J1
45
D4
44
J5
45
S1
See Page 45 41 (1GR–FE) A
41 (1GR–FE)
B
41 (1GR–FE)
E1
A
40 (1GR–FE)
J9
D
45
S8
45
E4
A
44
J10
E
45
S10
45
E5
B
44
J11
F
45
T1
41 (1GR–FE)
E6
C
44
45
V1
41 (1GR–FE)
J13
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
162 TOYOTA TACOMA (EM01D0U)
: Junction Block and Wire Harness Connector Code 1B 1C
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
24
Engine Room J/B (Engine Compartment Left)
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
1H 1I 1J 1K 2A DA DB DC DD PA PB PC PD PE PF
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IF1
55
Engine Wire and Engine Wire (Behind the Glove Box)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
II1
55
Instrument Panel Wire and Instrument Panel Wire (Instrument Panel Brace RH)
: Ground Points Code
See Page
Ground Points Location
EA
52 (1GR–FE)
Front Right Fender
EB
52 (1GR–FE)
Front Left Fender
EE
52 (1GR–FE)
Rear Side of Right Bank Cylinder Block
EF
52 (1GR–FE)
Rear Side of Left Bank Cylinder Block
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
IE
54
Right Kick Panel
163 TOYOTA TACOMA (EM01D0U)
Cruise Control for 2TR–FE P (BAT)
(IG)
(M/T)
(IG) 9 1J 10A IG1 NO. 2
10A IG1
20A EFI
2 2 13 1H
LG
(∗1)
P
LG
(A/T)
L
∗ 1 : w/ VSC ∗ 2 : w/o VSC
14 1C
(∗1)
13 DC 12 IH1
12 DC 1
C14 Cruise Control Clutch SW
P1 Park/Neutral Position SW
L
(A/T)
Y
LG (M/T)
14 DC
2
D 7
LG (∗1) L
L
L
L–B
(M/T)
G–W
G–W
L–B
(A/T)
2
5 DD
6 1C
3 DB
2 1B
3 PB 40 IA1
1 IA1
5
L(∗1)
15 PE
L–B
G–W
2
L
16 PC 2
L
10 IA1
L–B
L(∗2)
(M/T)
1
8 D
EFI Relay
MREL
3 D
4 C
21 C
BATT
STP
D
E 4(A), E 5(B), E 7(C), E 8(D) Engine Control Module 3
2
+B 1 D
E04 7 B
ME01 3 B
E2
VTA1
28 A
20 A
VC 18 A
VTA2
M+
19 A
5 A
M– 4 A
GE01 8 A
2
3 1H 3
L
P
(Shielded)
G–W
L
G–B
BR
W–B
W–B
W–B 11 2A 30 2A
IF1
1
B
W–B
B
L
2
E03 4 B
IF1
L
W–B 6 1B IF1
4
IF1
3
6
5
4
2
1
E2
VTA
VC
VTA2
M+
M–
M
EA
T1 Throttle Body Assembly
W–B
W–B
BR
W–B
BR
B
W–B
B
5
W–B
9 2A 33 2A
EB
BR
EG
164 TOYOTA TACOMA (EM01D0U)
P
P
(M/T)
(M/T)
(BAT)
(IG)
(BAT)
15A IGN
10A STOP
10A ETCS
2
2 2 15 1I
O
2 8 1C
4
3
4
EPA
EPA2
VPA2
VCP2 1
L–W
3
GR–B
2
R–B
4
R
6 IA1
VCPA
6
R–Y
L
(∗1)
L
VPA
5
LG–B
2
(∗1)
(∗1)
G–B
LG
1
A19 Accelerator Position Sensor
V–W
2
3
L
2
2
(∗2)
2
O
5
G–W
2
1
S10 Stop Lamp SW
STOP LP CTRL Relay
2
(∗1)
G–W
LG (∗1)
13 IA1
12 IA1
11 IA1
7 IA1
8 IA1
9 IA1
IGSW
R
R–B
GR–B
L–W
9 D
ST1–
R–Y
O
16 D
L(∗2)
LG–B
V–W
L(∗1)
LG
2 IA1
7 D
20 D
18 D
26 D
21 D
19 D
27 D
EPA
+BM
VPA
VCPA
EPA2
VPA2
VCP2
SLU+
SLU–
W–G
L–W
SLU–
S1
S2
B
6 B
V SLU+
2 B
R–B
8 B
SLT–
1 B
G–B
4 B
SLT+
Y–B
7 B
OT2+
W
6 A
LG
7 A
BR
E1 3 A
Y
S2 8 B
G
S1 9 B
O
10 B
O
11 B
W–B
SLT– 13 B
W–B
SLT+ 12 B
3 B
J12 Junction Connector
THO1 24 B
BR
E 4(A), E 5(B), E 7(C), E 8(D) Engine Control Module E01
E02
8
O
BR
1
OT2– 5 B
E 1(B) Electronically Controlled Transmission Solenoid
BR
EH
165 TOYOTA TACOMA (EM01D0U)
Cruise Control for 2TR–FE P
P
(M/T)
(M/T)
∗ 1 : w/ VSC ∗ 2 : w/o VSC
D4 Data Link Connector 3
CANH
CANL
L–W 2 D
CANH
17 A 39 B
FL–
V–W
7
SP1
RL+
RL–
RR+
6 A 16 B
5 A 44 B
RR– 19 A (∗1) 45 B (∗2)
O
LG
20 A 15 B
II1
12 PC ECC
FR–
B
18 C
Y 1
W–B
2
FR+
12 A (∗1) 18 B (∗2)
BR
PI
8 C
BR–W BR–W
II1
W–B
2
R–Y
3 A 40 B
(A/T)
4 A 9 B
S 1(A), (B) Skid Control ECU with Actuator SPD
22 D
18 A 10 B FL+
CANL
EC
CCS
P
34 C
L
33 C
36 IA1
R
1 F
W
2 E
B
1 E
E 4(A), E 5(B), E 7(C), E 8(D) Engine Control Module
31 C
(A/T) Speed Sensor (Front LH, RH)
17 C TC
R–Y
ST–Plug
P–B
9 DB
1 D
G
2 DA
14
Y–B
J 9(D), J10(E), J11(F) Junction Connector
P–B
6
W–B
TC 13
Speed Sensor (Rear)
CCS
J14 Junction Connector
1
8 PF Main
2 PD
13
EH
LG
V–W
+ RES
LG
W–B
– SET
V–W
CANCEL
J13 Junction Connector
Cruise Control SW
S8 Spiral Cable
W–B
18 PA
2
1
W–B
IE
166 TOYOTA TACOMA (EM01D0U)
P (BAT)
7. 5A GAUGE
P
(IG)
7. 5A ECU–B
(M/T)
(M/T)
2 3 1J
2
7 PF
P
16 1C
(M/T)
V
R
4 PA
13 1K R–Y
1
21
1
6
SE
24
19
2
LG
V–W
W–B
W
SI 3
(M/T)
C9 Combination Meter
CRUISE
Speed Control
2
9 IH1
R–Y
(M/T)
IG+
(M/T)
R–Y
V1 Vehiele Speed Sensor (Combination Meter)
R–Y
R
V
(A/T)
(A/T)
8 IH1
3
W (M/T)
R–Y (M/T)
LG
J1 Junction Connector
W–B
V–W
2
IA
167 TOYOTA TACOMA (EM01D0U)
Cruise Control for 2TR–FE System Outline The cruise control system is a constant vehicle speed controller in which control of the switch on the instrument panel makes it possible to automatically adjust the opening of the engine throttle valve without depressing of the accel pedal. 1. Set Operation When the main SW is turned on, the system starts preparations necessary for the cruise control and turns on the indicator light in the combination meter. 2. Set Speed Control When the – SET SW is operated with the cruise control main SW turned on during travelling, the constant vehicle speed is controlled. 3. Coast Control When the – SET SW is kept turned on during cruise control travelling, the engine control module controls the throttle valve to decelerate the vehicle. Every time the – SET SW is turned on instantaneously, the vehicle speed is decelerated approximately 1.6 km/h. 4. Accel Control When the + RES SW is kept turned on during cruise control travelling, the engine control module controls the throttle valve to accelerate the vehicle. Every time the + RES SW is turned on instantaneously, the vehicle speed is accelerated approximately 1.6 km/h. 5. Resume Control When the vehicle speed is within the low speed limit (Approximately 40 km/h, 25 mph) if the cruise control is cancelled, use of the + RES SW accelerates the vehicle to the speed level used before canceling the cruise control. 6. Manual Cancel Mechanism If any of the following signals is input during cruise control travelling, the cruise control is cancelled. ∗ The stop lamp SW is turned on. ∗ The CANCEL SW is turned on. ∗ The main SW is turned off. ∗ Gear is shifted from D position to other positions than D (A/T). ∗ Clutch pedal depresed (M/T). 7. Auto Cancel Function If any of the following conditions is encountered, the cruise control is automatically cancelled. ∗ The stop lamp SW wiring is faulty or short–circuited. ∗ The vehicle speed signal is faulty. ∗ The electronically controlled throttle malfunctions. ∗ The actual vehicle speed becomes –16 km/h slower than the set speed. ∗ The actual vehicle speed becomes slower than the minimum speed limit. 8. Overdrive Control Function Overdrive is sometimes cut off on gradients during cruise control driving. When end of climbing gradient is determined by throttle opening degree information after overdrive is canceled, control is reset to overdrive condition after overdrive resetting timer operation. Also, when overdrive is cut off during accelerator resuming control, control is reset to overdrive condition when accelerator resuming control is finished. : Parts Location Code
See Page
A19
44
Code E8
See Page D
J1
Code
44 45
See Page
P1
43 (2TR–FE)
C9
44
C14
44
J9
D
45
D4
44
J10
E
45
S8
45
J11
F
45
S10
45
S1
A
43 (2TR–FE)
B
43 (2TR–FE)
E1
B
42 (2TR–FE)
E4
A
44
J12
45
T1
43 (2TR–FE)
E5
B
44
J13
45
V1
43 (2TR–FE)
E7
C
44
J14
45
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
168 TOYOTA TACOMA (EM01D0U)
: Junction Block and Wire Harness Connector Code 1B 1C
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
24
Engine Room J/B (Engine Compartment Left)
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
1H 1I 1J 1K 2A DA DB DC DD PA PB PC PD PE PF
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IF1
55
Engine Wire and Engine Wire (Behind the Glove Box)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
II1
55
Instrument Panel Wire and Instrument Panel Wire (Instrument Panel Brace RH)
: Ground Points Code
See Page
Ground Points Location
EA
53 (2TR–FE)
Front Right Fender
EB
53 (2TR–FE)
Front Left Fender
53 (2TR–FE)
Rear Side of Cylinder Block
IA
54
Left Kick Panel
IE
54
Right Kick Panel
EG EH
169 TOYOTA TACOMA (EM01D0U)
Multiplex Communication System – CAN
E7 Engine Control Module
Y1 Yaw Rate Sensor
2 E
1 E
15 IE1
5 IE1
Y
1 C
3
L 2 C
CANH
Y
2
L
CANL
33
B
CANH
34
W
CANL
10
Y–B
CANH
9
L–W
CANL
2 B
1 B
B–W
25 A
11 A
CANL
14
CANH
CANL
1 F
6 CANH
D4 Data Link Connector 3 W–B
S 1(A) Skid Control ECU with Actuator
1 D
W–B
1 IA3
W–L
2 IA3
2 D
Y–B
1 A
B–W
2 A
L–W
ST–Plug
W–L
J 6(A), J 7(B), J 8(C), J 9(D), J10(E), J11(F) Junction Connector
S9 Steering Sensor
1
J13 Junction Connector IE
170 TOYOTA TACOMA (EM01D0U)
System Outline Multiplex communication system (CAN) uses a serial communication protocol and communicates with a differential voltage. In this network system, TERMINALS CANH and CANL are used for communication between the ECUs and sensors, and excellent data communication speed and communication error detecting facility are provided. This system is working for the following systems: ∗ ABS ( w/ VSC) ∗ Auto LSD ∗ Cruise Control ∗ Downhill Assist Control ∗ Electronically Controlled Transmission and A/T Indicator ∗ Engine Control ∗ Hill–Start Assist Control ∗ TRAC ∗ VSC : Parts Location Code
See Page
D4 E7
Code
See Page
44
J9
D
45
44
J10
E
45
A
45
J11
F
45
J7
B
45
J8
C
45
J6
J13 S1
Code S1 S9
43 (2TR–FE) 45 47 (*1)
45 A
See Page A
Y1
41 (1GR–FE)
48 (*2) 49 (*3)
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA3
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IE1
54
Instrument Panel Wire and Floor No.2 Wire (Left Kick Panel)
: Ground Points Code IE
See Page 54
* 1 : Double Cab
Ground Points Location Right Kick Panel
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
171 TOYOTA TACOMA (EM01D0U)
ABS, TRAC, VSC, Auto LSD, DAC and HAC (BAT)
(BAT) 30A ABS NO. 2
(IG) 50A ABS NO. 1
2
15A IGN
+BM1
+BM2
IG2
W
L
S4 Speed Sensor (Front RH)
2
1
P
1 C
1
L
2 C
L
O
2 A
+BS
2
R
B
31 A
W
17 1C
G
2 2F
S3 Speed Sensor (Front LH)
1 2F
R
2
B
2
18 A
4 A
3 A
17 A
FL+
FL–
FR+
FR–
S 1(A), S 2(C) Skid Control ECU with Actuator
39 2A
33 2A
EB
172 TOYOTA TACOMA (EM01D0U)
EA
W–B
W–B
W–B
W–B
1 A
W–B
S22 Speed Sensor (Rear)
GND1 1 A
W–B
W–B
GND2 32 A
W–B
V–W
O L
3
GND3 4 C
2 A
O
B
J5 Junction Connector
LBL 41 A
W–B
W–B
(4WD)
4
W
W
1
B
BR
6 IB1
BR
5 IB1
Y
15 IB1
15
IC
RR– 19 A
14 IB1
2
13
RR+ 5 A
Y
(4WD)
W–B W–B
(4WD)
15 IA3
RL– 6 A
B 2(A) Brake Fluid Level Warning SW
RL+ 20 A
L
NEO 10 A
P
∗ 1 : w/ Downhill Assist Control ∗ 2 : w/ Auto LSD
G–B (A/T) R–W
CSW
P1 Park/Neutral Position SW
Y
(A/T)
(M/T)
Y IG1
BZ
BRL
WA
SP1 12 A
O
R–Y
21 IA1
19 IA1
36 IA1
GR
B–W
O
(∗2)
(∗1)
3
R–Y
B–W
6 IA3
(A/T)
GR
2 IA3
(∗2)
1 IA3
(∗1)
18 IA1
DAC
A27 Auto LSD SW
3
4
AUTO LSD W–B
4
(∗2)
P–B
W–L
29 A
W–L
3 C
B–W
30 A
B–W
46 A
GR–B
GR–B
CANL 25 A
P–B
11 A
4 IA3
W–B
D8 Downhill Assist Control SW
G–Y
(M/T)
CANH
43 A
(∗1)
G–Y 6 DC
G–Y
S 1(A), S 2(C) Skid Control ECU with Actuator
(A/T)
HDCS 44 A
(A/T)
P
P/R
PKB
R–Y(A/T) O
10
13
9
J14 Junction Connector
1
11
B–W GR
W–B
LG
W–B
P6 Parking Brake SW
B1 Back–Up Lamp SW
BR–W
EXI4
15 DC
12 IH1
14 A
28 A
3 DD
2
39 IA1
21 A
EXI
6
P
2
LG
27 A
19 PC
1
(4WD)
Y–B Y–B
LG–B
42 IA1
(4WD)
41 IA1
(4WD)
LG–B
(4WD)
G–B
(A/T)
18 PC
6 PB
R–W
5 PB
(M/T)
Transfer Indicator SW (L4 Position)
ADD Actuator Assembly
(M/T)
W–L B–W W–B W–B
173 TOYOTA TACOMA (EM01D0U)
ABS, TRAC, VSC, Auto LSD, DAC and HAC P
P LG (BAT)
LG (IG) 10A STOP
14 1C ∗ ∗ ∗ ∗
10A IG1 NO. 2
2
1 2 3 4
: w/ Downhill Assist Control : w/ Auto LSD : w/ Rear Diff. Lock : w/o Rear Diff. Lock
LG
2 G–W
9 1D
2 DC
7 DC
9 DC
G–B
R–B
W
V
24 A
13 A
42 A
EXI3
TS
WFSE
R–W
16 IA3
18 IA3
S 1(A), S 2(C) Skid Control ECU with Actuator
L–W Y–B
L–W(4WD)
R–W
L–W(2WD)
D/G
IND 34 A
Y
(∗1)
L–B
12 IB1
L–Y
G–W (∗2)
VSCW 36 A
(∗1)
LG–R
13 IB1
(∗2)
L–W 17 IA3
LG–R
HDCW 33 A
26 A
CANL 14
L–W
20 DB
CANH
Y
INFR 15 A
STPO
Y–B
10 DA
15 DD
16 A
STP
L–B
WT 35 A
(∗3)
V
L
L L L
7 A
STP2
6
7 DA
2 1B
45 A
WFSE 15
7 DD
2
15 1C
SIL 7
W
2
Transfer Indicator SW (Rear Diff. )
2
1
2
TS 12
R–B
3
4 IB1
L–Y
4
S10 Stop Lamp SW
2
1
STOP LP CTRL Relay
5
D4 Data Link Connector 3
L–Y
LG
2
(∗4)
G–W
2
R–W Y L–B(∗1) LG–R(∗2) L–W(4WD) L–W(2WD)
R–Y(A/T)
R–Y(A/T)
O
O
B–W
B–W
GR
GR
LG
LG
W–L
W–L
B–W
B–W
W–B
W–B
W–B
W–B
174 TOYOTA TACOMA (EM01D0U)
P LG
LG
LG
LG R (BAT)
P
(IG)
7. 5A GAUGE
7. 5A ECU–B
(IG) 1 1I
13 1H 10A IG1
2 3 1J
2 13 1K
R
V
16 1C
1 A
BRAKE
ABS
VSC OFF
AUTO LSD
DAC
VSC TRAC
Slip
P
21 A
9 1J
(M/T)
R
C 9(A), C10(B) Combination Meter
7 PF
1 IG+ SI
9 IH1
R–Y
3
(M/T)
2
8 IH1
R–Y
W–B
B–W
O
R–Y(M/T)
L–W
R–Y(A/T)
L–W
(2WD)
W
3 A
(M/T)
2 A
W
10 B
(M/T)
9 B
(M/T)
6 A
(4WD)
L–W
L–B
37 A
(∗2)
Y
35 A
LG–R
13 B
(∗1)
38 A
R–W
SE 36 A
V1 Vehicle Speed Sensor (Combination Meter)
P
(M/T)
Reverse
Speed Control
Reverse
4 PA
L–W Y–B
Y–B R–W 7 ID2
6 ID2
2 ID1
L–W
L–B(∗1)
(2WD)
Y
LG–R(∗2) 1 ID1 L–W(4WD) L–W(2WD) R–Y(A/T) O B–W
W–B
GR
GR
LG
LG
W–L
W–L
B–W
B–W
W–B
W–B
W–B
W–B
175 TOYOTA TACOMA (EM01D0U)
ABS, TRAC, VSC, Auto LSD, DAC and HAC LG–B
LG LG
LG
R
Y 2
9
10
34
33
2 C
1 C
2 E
1 E
2 B
1 B
2 A
1 A
2 D
1 D
1 F
Y–B
W–B
ST–Plug
L–W
J 6(A), J 7(B), J 8(C), J 9(D), J10(E), J11(F) Junction Connector
LG
LG
Y
CANH
L
CANL
B
CANH
W
CANL
Y–B
ESS
2 Buzzer
V7 VSC Warning Buzzer
L
BAT
B–W
3 DC
1G
E7 Engine Control Module
L–W
13 DA
3
W–L
6 DD 12 DA
1
W–B
13 DC 12 DC
S9 Steering Sensor
LG
LG–B
LG
LG
R
GR
1
L–W Y–B
W–B
W–B GR
W–B
LG W–L B–W
1 W–B
J13 Junction Connector
2
W–B W–B
IE
176 TOYOTA TACOMA (EM01D0U)
LG–B
LG–B
14 IA3 L
5 IE1
15 IE1
3 IE1
Y
L
LG
LG–B
Y
2
5
3 CANH
CANL
IG
GND
Y1 Yaw Rate Sensor
W–B
1
W–B
W–B
10 1F
18 1H
W–B
2
4
W–B
W–B
W–B
J1 Junction Connector IA
BA
177 TOYOTA TACOMA (EM01D0U)
ABS, TRAC, VSC, Auto LSD, DAC and HAC System Outline 1. Normal Operation The VSC system helps prevent the vehicle from slipping sideways as a result of strong front wheel skid or strong rear wheel skid during cornering. The followings are two examples that can be considered as circumstances in which the tires exceed their lateral grip limit. The VSC system is designed to help control the vehicle behavior by controlling the engine’s output and the brakes at each wheel when the vehicle is under one of the conditions indicated below. ∗ When the front wheels lose grip in relation to the rear wheels (Strong front wheel skid tendency). ∗ When the rear wheels lose grip in relation to the front wheels (Strong rear wheel skid tendency). 2. Electronic Brake–Force Distribution Skid control ECU with actuator distributes appropriate brake–force to front and rear wheels (Control of brake–force distribution to front and rear wheels) corresponding to the vehicle driving conditions. It also makes effective use of rear wheel brake–force to match loading condition and decelerating of the vehicle, resulting to reduce depressing of brake pedal and to ensure effective braking. In braking during making a turn, the ECU controls appropriate brake–force distribution to right and left wheels (Control of brake–force distribution to right and left wheels) to ensure stability and braking of the vehicle. 3. Downhill Assist Control Operation The downhill assist control operation controls braking action of each wheel to help prevent out–of–balance vehicle posture when descending a steep hill or traveling at a speed exceeding the threshold of wheel gripping capability. When the downhill assist control is in operation, the brake system controls vehicle speed within the range of 5 to 7 km/h. For the downhill assist control to be operative all of the following conditions have to be met: ∗ Downhill assist control switch = ON ∗ Transfer L4 selected ∗ Vehicle speed is 5 km/h or more, but less than 25 km/h. ∗ Accelerator pedal OFF ∗ Brake pedal OFF 4. Hill–Start Support Control Operation When starting on a steep hill for ascending, the hill–start support control automatically puts the brake on momentarily – from the moment when the driver releases his foot from the brake pedal until he steps on the accelerator pedal – to help the driver start the vehicle safely and smoothly. Please bear in mind, however, that it activates the brake system for only 3 seconds. For the hill–start support control to be operative all of the following conditions have to be met: ∗ Shift position = D, 2, or L ∗ Vehicle not moving forward with some wheel(s) slipping ∗ Vehicle speed > 0 km/h 5. Active TRAC (4WD) Active traction control system provides great effect of LSD (Limited Slip Differential) to deliver driving force lost due to the acceleration slip to each of 4 wheels by conducting the brake oil control on slipped wheels caused by acceleration during 4WD driving. 6. Auto LSD (2WD) Auto LSD fulfills the function of LSD (Limited Slip Differential) by using the system of TRAC. It controls to focus on ’getting out’, which ensures to recover from run–off condition and to take off on roads with much travel resistance such as sand.
178 TOYOTA TACOMA (EM01D0U)
: Parts Location Code
See Page
A27
44
B1 B2
A
C9 C10
Code
See Page
Code
C
45
40 (1GR–FE)
J9
D
45
42 (2TR–FE)
J10
E
45
40 (1GR–FE)
J11
F
45
S9
45
S10
45
42 (2TR–FE)
J13
45
A
44
J14
45
B
44
D4
44
D8
44
E7
44
J1
45
J5
45
J6
A
45
J7
B
45
C S3
41 (1GR–FE) 43 (2TR–FE)
48 (*2) 49 (*3)
45 A
43 (2TR–FE)
47 (*1) S22
43 (2TR–FE)
P6
S2
S4
41 (1GR–FE)
P1
S1
S3
See Page
J8
V1
41 (1GR–FE) 43 (2TR–FE)
V7
41 (1GR–FE)
41 (1GR–FE) 43 (2TR–FE) 45 47 (*1)
43 (2TR–FE)
Y1
41 (1GR–FE)
48 (*2) 49 (*3)
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1B
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1D
28
Frame Wire and Driver Side J/B (Lower Finish Panel)
1F
28
Floor No.2 Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2A
24
Engine Room J/B (Engine Compartment Left)
2F
25
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
1C
1H 1I 1J 1K
DA DB DC DD PA PB PC PF
: Connector Joining Wire Harness and Wire Harness Code IA1
See Page
Joining Wire Harness and Wire Harness (Connector Location)
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
54
Frame Wire and Engine Room Main Wire (Left Kick Panel)
54
Frame Wire and Instrument Panel Wire (Left Kick Panel)
IE1
54
Instrument Panel Wire and Floor No.2 Wire (Left Kick Panel)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
IA3 IB1 ID1 ID2
* 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
179 TOYOTA TACOMA (EM01D0U)
ABS, TRAC, VSC, Auto LSD, DAC and HAC : Ground Points Code EA EB
See Page 52 (1GR–FE) 53 (2TR–FE) 52 (1GR–FE) 53 (2TR–FE)
Ground Points Location Front Right Fender Front Left Fender
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
IE
54
Right Kick Panel
56 (*1) BA
57 (*2)
Floor Seat Cross Member LH
58 (*3) * 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
180 TOYOTA TACOMA (EM01D0U)
Memo
181 TOYOTA TACOMA (EM01D0U)
ABS (BAT)
(BAT) 50A ABS NO. 1
30A ABS NO. 2
2
D9 Deceleration Sensor
G–W
2
3
18 IE1
D4 Data Link Connector 3
(Shielded)
B
(∗1)
W
2
S10 Stop Lamp SW
7 IE1
8 IE1
2
TC
GL1
TS
P–B
W
R–B
12
L
Y
R
(Shielded)
B
(∗1)
(∗1)
2 1B
2 DA
10 DA
7 DA
15 1C
8 DC
7 DC
2 DC
2 B
+BM
+BS
R–B
31 B
VGS
W
37 B
GGND
P–B
B
(Shielded)
12 IA3
(∗1)
W W 8 B
7
L
4 B
10 IA3
(∗1)
(∗1)
R R
(∗1)
W–B
13 IA3
SIL
13
1
11 IA3
: 4WD, Prerunner : w/ Rear Diff. Lock : w/o Rear Diff. Lock : 1GR–FE A/T : 2TR–FE A/T
2
VGS
2
(∗1)
R 17 IE1
GGND
(∗1)
GL1 1
1 2 3 4 5
10A STOP
2
2
∗ ∗ ∗ ∗ ∗
(BAT)
14 B
21 B
13 B
20 B
STP
TC
D/G
TS
S 1(B) Skid Control ECU with Actuator RR–
O O
2
1
4
3
L
W
B
1
W
2
BR
1
L
P
6 IB1
L
5 IB1
L
B
45 B
15 IB1
W
L
RR+ 44 B
14 IB1
R
G W
RL– 16 B
S4 Speed Sensor (Front RH)
S3 Speed Sensor (Front LH)
W–B
W–B W–B
2
RL+ 15 B
BR
FR– 39 B
Y
FR+ 40 B
W–B
EA
FL– 9 B
Y
FL+ 10 B
W–B
GND2 32 B
W–B
GND1 1 B
S22 Speed Sensor (Rear)
EB
182 TOYOTA TACOMA (EM01D0U)
P6 Parking Brake SW
G–Y
R–Y
R–Y
6 DC 36 IA1
L–Y
21 IA1 38 IA1
42 IA1 7 DD
3 DC 15 DD
S 1(B) Skid Control ECU with Actuator IG1 7 B
EXI2
N P
36 B 6 B
1
TOYOTA TACOMA (EM01D0U) 5 PB 8 PB
18 PC 11 PC
(∗5)
Y
(∗2)
L–Y
LG
P
(∗3)
13 1H
G–W
(∗4)
L–W
(A/T)
G–B
13 DC
P1 Park/Neutral Position SW
Transfer Indicator SW (Rear Diff. )
L–Y
LG
Transfer Indicator SW (L4 Position)
ADD Actuator Assembly
10A IG1 NO. 2
(A/T)
LG
Y–B (4WD)
6
G–W
Y–B (4WD)
LG–B (4WD)
4 IB1
G–B
43 B
9 1D
(A/T)
BRL
G–B
17 B 46 B
(A/T)
WA
G–B
LG–B (4WD)
14 1C
(A/T)
EXI4
(A/T)
G–W
38 B
(A/T)
19 IA1
G–W
18 B
B–W
23 B
B–W
SP1
O
PKB
O
EXI
(A/T)
24 B
(A/T)
G–Y
41 IA1
(M/T)
3 DD
G–Y
(A/T)
(IG) (IG)
10A IG1
9 1J
(M/T)
P
12 IH1
2
P
N 9
39 IA1
15 DC
B–W
O
(A/T)
R–Y
183
R–Y
R–Y
W
W
9 IH1
R–Y
2 SE
(M/T)
V1 Vehicle Speed Sensor (Combination Meter)
Speed Control
Reverse
Reverse
(M/T)
P
ABS
BRAKE
21 A
(M/T)
2 A
(M/T)
6 A
W–B
(M/T)
9 B
(A/T)
10 B
O
B–W
C 9(A), C10(B) Combination Meter
P (M/T)
V
ABS (IG)
7. 5A GAUGE
3 1J
(M/T) P
7 PF
4 PA
1
IG+
3 SI
3 A
8 IH1
B–W
O
(A/T)
R–Y
2
J1 Junction Connector
IA
184
TOYOTA TACOMA (EM01D0U)
System Outline This system controls the respective brake fluid pressures acting on the disc brake cylinders of the right front wheel, left front wheel and rear wheels when the brakes are applied in a panic stop so that the wheels do not lock. This results in improved directional stability and steerability during panic braking. 1. Input Signals (1) Speed sensor signal The speed of the wheels is detected and input to TERMINALS (B) 10, (B) 15, (B) 40 and (B) 44 of the skid control ECU with actuator. (2) Stop lamp SW signal A signal is input to TERMINAL (B) 14 of the skid control ECU with actuator when the brake pedal is depressed. 2. System Operation During sudden braking the skid control ECU with actuator has signals input from each sensor, which controls the current to the solenoid inside the actuator and lets the hydraulic pressure acting on each wheel cylinder escape to the reservoir. The pump inside the actuator is also operating at this time and it returns the brake fluid from the reservoir to the master cylinder, thus preventing locking of the vehicle wheels. If the skid control ECU with actuator judges that the hydraulic pressure acting on the wheel cylinder is insufficient, the current on the solenoid is controlled and the hydraulic pressure is increased. Holding of the hydraulic pressure is also controlled by the skid control ECU with actuator, by the same method as above. Pressure reduction, holding and increase are repeated to maintain vehicle stability and to improve steerability during sudden braking. : Parts Location Code
See Page
Code
See Page
C9
A
44
P1
43 (2TR–FE)
C10
B
44
P6
45
D4
44
S1
46 (*1) 48 (*2)
D9
S3
49 (*3) J1
45
P1
41 (1GR–FE)
B
S4
Code S10
See Page 45 47 (*1)
41 (1GR–FE)
S22
43 (2TR–FE)
48 (*2) 49 (*3)
41 (1GR–FE)
V1
43 (2TR–FE)
41 (1GR–FE) 43 (2TR–FE)
41 (1GR–FE) 43 (2TR–FE)
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1B 1C 1D 1H 1J DA DC DD PA PB PC PF
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
28
Frame Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
* 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
185 TOYOTA TACOMA (EM01D0U)
ABS : Connector Joining Wire Harness and Wire Harness Code IA1
See Page
Joining Wire Harness and Wire Harness (Connector Location)
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IB1
54
Frame Wire and Engine Room Main Wire (Left Kick Panel)
IE1
54
Instrument Panel Wire and Floor No.2 Wire (Left Kick Panel)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
IA3
: Ground Points Code EA EB IA
See Page 52 (1GR–FE) 53 (2TR–FE) 52 (1GR–FE) 53 (2TR–FE) 54
Ground Points Location Front Right Fender Front Left Fender Left Kick Panel
186 TOYOTA TACOMA (EM01D0U)
SRS NOTICE: When inspecting or repairing the SRS, perform service in accordance with the following precautionary instructions and the procedure, and precautions in the Repair Manual applicable for the model year. D Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most important source of information when troubleshooting. When troubleshooting the SRS, always inspect the DTCs before disconnecting the battery. D Work must be started more than 90 seconds after the ignition SW is turned to the ”LOCK” position and the negative (–) terminal cable is disconnected from the battery. (The SRS is equipped with a back–up power source so that if work is started within 90 seconds from disconnecting the negative (–) terminal cable of the battery, the SRS may deploy.) D When the negative (–) terminal cable is disconnected from the battery, the memory of the clock and audio system will be cleared. So before starting work, make a record of the contents in the audio memory system. When work is finished, reset the audio systems as they were before and adjust the clock. Some vehicles have power tilt steering, power telescopic steering, power seat and power outside rear view mirror which are all equipped with memory function. However, it is not possible to make a record of these memory contents. So when the work is finished, it will be necessary to explain it to your customer, and ask the customer to adjust the features and reset the memory. To avoid erasing the memory in each system, never use a back–up power supply from outside the vehicle. D Before repair, remove the airbag sensor if shocks are likely to be applied to the sensor during repair. D Do not expose the following parts directly to hot air or flame; D Even in cases of a minor collision where the SRS does not deploy, the following parts should be inspected; D Never use SRS parts from another vehicle. When replacing parts, replace with new parts. D For the purpose of reuse, never disassemble and repair the following parts. D If the following parts have been dropped, or have cracks, dents and other defects in their case, bracket, and connector, replace with new one. D Use a volt/ohmmeter with high impedance (10 kΩ/V minimum) for troubleshooting electrical circuits of the system. D Information labels are attached to the periphery of the SRS components. Follow the instructions of the notice. D After work on the SRS is completed, check the SRS warning light. D If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section of the Repair Manual. ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗
Steering wheel pad Front passenger airbag assembly Side airbag assembly Curtain shield airbag assembly Seat belt pretensioner Center airbag sensor assembly Front airbag sensor assembly Side airbag sensor assembly Rear airbag sensor assembly
187 TOYOTA TACOMA (EM01D0U)
SRS (IG)
(IG)
7. 5A GAUGE
3 1J
10A IG1
P
9 1J
F17 Front Seat Outer Belt (LH)
F18 Front Seat Outer Belt (RH)
Pretensioner
Pretensioner
7 PF 1
1
2
2
2
Y
(∗1)
(∗1)
Y–B
Y
(∗1)
(∗1)
IL1 1 BG2
Y
2 BG2
V
GR
17 A
23 A
13 A
21 P–AB
2 B
PBEW
PAON
Y
(∗1)
(∗1)
Y–B
Y
IL1
L–W
1
(∗1)
12
(∗1)
Y–B
AIR
5
4 C
1 B
PD+
5 C
PP+
PD–
PP–
LA
E1
E2
D+
D–
14 A
25 A
26 A
5 A
6 A
8 A
7 A
W–B
W–B
Y–B
Y
Y–V
Y–O
D2+
D2–
P+
P–
4 A
3 A
P2+ 1 A
P2– 2 A
Y–GR
L–Y
II1
Y–G
6
33
Y–R
B–Y
Reverse
C9 Combination Meter
A21(A), A22(B), A23(C) Airbag Sensor Assembly Center
3 IG1
4 IG1
1 IG1
2 IG1
W–B
W–B IB
3
Y–G
4
1 A
2 A
1 B
2 B
Spiral Cable
18 1H
4
2
Y–R
1
Y
19 1H
Y–B
B–Y
A26 Airbag Squib (Steering Wheel Pad)
J1 Junction Connector IA
188 TOYOTA TACOMA (EM01D0U)
A24(A), A25(B) Airbag Squib (Front Passenger' s Airbag Assembly)
(∗2)
(∗2)
Y–B
2 BF2
Y
1 BF2
(∗2)
(∗2)
Y–B
(∗3)
GR
PBEW
SW–
SRS
(∗3)
GR–B
(∗3)
8
IG+
Y–B
3
(∗3)
H7 Hazard Warning Signal SW Assembly
P
V
GR–B
13 PF
: Access Cab : Except Access Cab : Separate Seat : w/ Side Airbag : Except Double Cab
9 B SFD+
10 B SFD–
7 C
7 B
SFP–
ICD+
9 C
ICD–
2
11 A
10 C
ICP+
12 A
MSW+
ICP–
PMC–
G
L
(∗4)
(∗4)
(∗4)
6 B
1
2
(∗5)
1
Y–O
2
(∗4)
(∗4)
6 C
SFP+
A20 Airbag Cut Off SW
PMC+ 1
Y–G
(∗4)
Y–R
2
(∗4)
SFR–
1
Y–G
SFR+
2
(∗4)
SFL–
1
Y–R
SFL+
C17 Curtain Shield Airbag Squib (RH)
(∗5)
C16 Curtain Shield Airbag Squib (LH)
Y–O
S27 Side Airbag Squib (RH)
Y–V
S26 Side Airbag Squib (LH)
1 2 3 4 5
Y–V
∗ ∗ ∗ ∗ ∗
MSW–
A21(A), A22(B), A23(C) Airbag Sensor Assembly Center
3 BBL–
BCL+
BCL–
1
2
LG
(∗4)
(∗4)
L–Y
S12 Side Airbag Sensor (Front RH)
(∗4)
LG–B
(∗4)
BR–W
L–W
S11 Side Airbag Sensor (Front LH)
4 BBL+
BBP– 11 C
4
3
BBR+
BBR–
BCR+
BCR–
1
2
1
BCR+
BCR–
A11 Airbag Sensor (Front LH)
A12 Airbag Sensor (Front RH)
S13 Side Airbag Sensor (Rear LH)
GR
2
BCL–
(∗4)
1
BCL+
P
2
–SR
(∗4)
1
+SR
(∗4)
2
–SL
GR–L
1
+SL
(∗4)
2
P–L
BR–W
1 IA2
BBP+ 8 C
B–W
2 IA2
BBD– 15 B
BR
3 IA2
8 B
W–G
4 IA2
BBD+
–SR 27 A
B–W
+SR 29 A
BR
–SL 28 A
W–G
+SL 30 A
S14 Side Airbag Sensor (Rear RH)
189 TOYOTA TACOMA (EM01D0U)
SRS
O
E7 Engine Control Module
P(∗6)
D4 Data Link Connector 3
W(∗6) W(∗3) F/PS G–B(∗6)
P–B
W
7
W(∗3)
SIL
13
W(∗6)
TC
32
2 DA
10 DA
17 DB
G–R(∗6)
R
G–B(∗3) G–R(∗3)
P–B
W
21 A
15 A
16 A
IG2
GSW2
TC
24 A
13 C
GSW3
SIL
FSP–
A21(A), A22(B), A23(C) Airbag Sensor Assembly Center
1
R–B
(∗6) (∗6)
B–G
1 BL1
2
(∗6)
2 BL1
R–B
4
(∗6)
G–W
3
4 BK1
(∗6)
3 BK1
G–W
1
(∗6)
2
DSP– 13 B
(∗6)
(∗3)
R–B
(∗3)
G–W
B
(∗3)
(∗3)
G–Y
(∗6)
B B
G–Y
(∗6) (∗6)
4 BL1
B
(∗6)
1 BK1
3 BL1
2
DSP+ 14 B
G–Y
(∗6)
2 BK1
G–Y
DBE– 12 B
G–W
DBE+ 11 B
1
Seat Position Airbag Sensor
F23 Front Seat Inner Belt (Driver' s Side)
F20 Front Seat Inner Belt (Driver' s Side)
S25 Seat Position Airbag Sensor (Driver' s Side)
190 TOYOTA TACOMA (EM01D0U)
G–R(∗3)
O
22 A
G–R(∗6)
R
19 DB
G–B(∗3)
G–B(∗6)
II1
P(∗6)
10
8 DB
12 C FSP+
(IG)
(BAT)
15A IGN 20 1H
O
∗ 3 : Separate Seat ∗ 6 : Bench Seat
7. 5A ECU–B
2 2 5 1I
13 1I
16 1C
R O P(∗6)
O(∗6)
(∗3)
O(∗6)
(∗3)
R(∗3)
P(∗6)
W(∗6)
W(∗6)
W(∗3) G–B(∗6)
G–B(∗6)
G–R(∗6)
FSR–
DIA
(∗3)
R 1 B
IG
+B
11 A
7 A
SVC1
1 A
SIG1
12 A
SGD1
8 A
SVC2
O
(∗3)
(∗3)
R–L
(∗3)
3
L
SGD2
2
(∗3)
SIG2
1
G
SVC2
3
(∗3)
SGD1
2
(∗3)
SIG1
1
LG–B
R
7 B
SVC1
B–L
R
3 BH1
(∗3)
O
2 B
O7 Occupant Classification Sensor (Front RH)
IL1
(∗3)
(∗3)
O O
(∗3)
6
2 BH1
1 BH1
W
(∗3)
4 B
FSR+
IL1
(∗3)
W 8 B
6 BH1
G–B
(∗3)
G–R
5 BH1
7
IL1
W
8
(∗3)
G–R(∗3)
(∗3)
G–B(∗3)
(∗3)
G–R(∗6)
O6 Occupant Classification Sensor (Front LH)
2 A
SIG2
SGD2
O 4(A), O 5(B) Occupant Classification ECU GND
BSW 9 B
BGND 5 B
SVC3 5 A
SIG3 9 A
SGD3 3 A
SVC4 6 A
SIG4 10 A
SGD4 4 A
(∗3)
B–R
(∗3)
L–R
(∗3)
GR–L
(∗3)
P–G
(∗3)
R–B
(∗3)
B–O
(∗3)
P–G
B
(∗3)
(∗3)
W–B
3 B
4 BH1
F25 Front Seat Inner Belt (Front Passenger' s Side)
(∗3)
W–B
IL1
7
1
1
2
3
1
2
3
SVC3
SIG3
SGD3
SVC4
SIG4
SGD4
O8 Occupant Classification Sensor (Rear LH)
W–B(∗6)
O9 Occupant Classification Sensor (Rear RH)
W–B(∗6)
J14 Junction Connector
13
W–B
4
(∗3)
W–B
2
2
J13 Junction Connector IE
191 TOYOTA TACOMA (EM01D0U)
SRS
∗ 6 : Bench Seat
O(∗6)
S29 Seat Belt Tension Sensor
P(∗6) W(∗6)
G–B(∗6)
FSR–
(∗6)
LG LG
6 BJ2
(∗6)
V
(∗6)
17
GBT
BT 1
7 BJ2
V
(∗6)
G G
8 BJ2
8
IG
VBT 2
(∗6)
O
9
GSW4
GBT 3
(∗6)
(∗6)
O O
2 BJ2
(∗6)
9 BJ2
1
DIA
IL1
(∗6)
(∗6)
P P
7
(∗6)
IL1
P
W W
(∗6)
10
3
(∗6)
W
12
FSR+
(∗6)
(∗6)
G–B
11
IL1
1 BJ2
5 BJ2
(∗6)
(∗6)
G–R
4 BJ2
G–B
(∗6)
G–R
8
(∗6)
G–R(∗6)
16
VBT
BT
O10 Occupant Classification ECU PS 6
3
(∗6)
R–B
L
(∗6)
(∗6)
GR
(∗6)
P–G
(∗6)
B
GPS 15
VPS 7
(∗6)
GSP
L–W
SP 4
(∗6)
W–B
BGND 14
(∗6)
BSW 13
5
LG–B
GND
IL1
F24 Front Seat Inner Belt (Front Passenger' s Side)
4
(∗6)
W–B
2
1
S28 Seat Position Airbag Sensor (Front Passenger' s Side)
3 BJ2
2
1
2 PS
1
3
GPS
VPS
O11 Occupant Classification Sensor
W–B(∗6)
192 TOYOTA TACOMA (EM01D0U)
System Outline ∗ The system reaches an ignition judgment to deploy the following device based on the signals received from the front airbag sensor and deceleration sensor. – Driver Airbag – Front Passenger Airbag – Seat Belt Pretensioner ∗ The system reaches an ignition judgment to deploy the following device based on the signals received from the side airbag sensors. – Side Airbags – Curtain Shield Airbags ∗ The dual–stage SRS airbag system has been used for the driver and front passenger airbags. This system controls the optimal airbag inflation by judging the extent of impact, seat position (driver seat), whether or not the seat belt is fastened (driver seat) and information from the front passenger occupant classification system. ∗ The front passenger occupant classification system judges whether the front passenger seat is occupied by an adult or child (with child seat) or is unoccupied, according to the load applied to the front passenger seat and whether the seat belt is buckled. Based on the results, it restricts the deployment of the front passenger airbag, front passenger side airbag, and front passenger seat belt pretensioner. In addition, the system informs the driver of the result of the judgment through the use of the AIRBAG ON/OFF indicator lights. ∗ The front passenger occupant classification system judges whether the front passenger seat is occupied by an adult or child (with child seat) or is unoccupied, according to the load applied to the front passenger seat, seat position (passenger), the load applied to the belt tension sensor (passenger), and whether the seat belt is buckled (passenger). Based on the results, it restricts the deployment of the front passenger airbag, front passenger side airbag, and front passenger seat belt pretensioner. In addition, the system informs the driver of the result of the judgment through the use of the AIRBAG ON/OFF indicator lights. ∗ The airbag manual ON–OFF switch is used to disable the deployment of the front and side airbags for the front passenger, such as when a child seat is installed on the front passenger seat. ∗ The airbag sensor assembly transmits a signal to the engine control module in order to stop the fuel pump when the airbag is deployed. : Parts Location Code
See Page
Code
See Page
40 (1GR–FE)
A11
42 (2TR–FE)
A12 A20
Code
See Page
46 (*1)
O6
50 (*4)
48 (*2)
O7
50 (*4)
40 (1GR–FE)
49 (*3)
O8
50 (*4)
42 (2TR–FE)
46 (*1)
O9
50 (*4)
48 (*2)
O10
51 (*5)
49 (*3)
O11
51 (*5)
F17
44
F18
A21
A
44
A22
B
44
F20
50 (*4)
S11
47 (*1)
A23
C
44
F23
51 (*5)
S12
47 (*1)
A24
A
44
F24
51 (*5)
S13
47 (*1)
A25
B
44
F25
50 (*4)
S14
47 (*1)
A26
44
H7
45
S25
51 (*5)
C9
44
J1
45
S26
50 (*4)
C16
46 (*1)
J13
45
S27
50 (*4)
C17
46 (*1)
J14
45
S28
51 (*5)
D4
44
O4
A
50 (*4)
S29
49 (*3)
E7
44
O5
B
50 (*4)
: Relay Blocks Code 2
See Page 24
* 1 : Double Cab
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
193 TOYOTA TACOMA (EM01D0U)
SRS : Junction Block and Wire Harness Connector Code 1C
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
1H 1I 1J DA DB PF
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA2
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IG1
55
Instrument Panel Wire and Instrument Panel Assembly Wire (Behind the Glove Box)
II1
55
Instrument Panel Wire and Instrument Panel Wire (Instrument Panel Brace RH)
IL1
55
Instrument Panel Wire and Floor Wire (Right Kick Panel)
BF2
57 (*2)
Rear Door No.2 Wire and Floor No.2 Wire (Under the Left Quarter Panel)
BG2
57 (*2)
Rear Door No.1 Wire and Floor Wire (Under the Right Quarter Panel)
BH1
60 (*4)
Floor Wire and Seat No.1 Wire (Under the Front Passenger’s Seat)
BJ2
61 (*5)
Floor Wire and Seat No.1 Wire (Under the Front Seat RH)
BK1
61 (*5)
Floor No.2 Wire and Seat No.1 Wire (Under the Front Seat LH)
BL1
61 (*5)
Seat No.2 Wire and Seat No.1 Wire (Under the Front Seat LH)
: Ground Points Code
See Page
Ground Points Location
IA
54
Left Kick Panel
IB
54
Instrument Panel Brace LH
IE
54
Right Kick Panel
* 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
194 TOYOTA TACOMA (EM01D0U)
Memo
195 TOYOTA TACOMA (EM01D0U)
Power Window (BAT)
(IG) 10A IG1 NO. 2
20A DR LCK
7. 5A ECU–B
(BAT)
R
50A J/B
R
(BAT)
2
2
4 IC1 2
R
L
R
2
16 1C
6 1A
1 1H
3
2
6
4
ECUB
5 IG
ALTB
13
1
PWS P/W Relay
Body ECU PCTY
DCTY
GND
20
26
1
8 1I
7 1F
2
5 1
20A P FR P/W
R–B
20A P RR P/W
6 BA1
W
W
9 IK1
6
(∗1)
16 1H
IL2
W
(∗1)
(∗1)
W
(∗2)
G–Y
W
2 BF1
(∗2)
R–B
17 1F
(∗1)
14 1H
W
18 1H
W–B
(∗2)
(∗1)
G–Y
(∗2)
R–B (∗1)
R–B
2 BG1
6 BB1
W(∗1)
1
D11 Door Courtesy SW (Driver' s Side)
D12 Door Courtesy SW (Front Passenger' s Side)
20A D RR P/W
IL1
G–Y
5
30A D FR P/W
W(∗1) 1 W
W–B
196 TOYOTA TACOMA (EM01D0U)
∗ 1 : Double Cab ∗ 2 : Access Cab
R
7 A (∗1) 9 B (∗2)
P 9(A), (B) Power Window Master SW
Up
Down
Auto Down
Front Passenger' s
IC
15 A (∗1) 10 B (∗2)
L–Y
B
9 A (∗1) 4 B (∗2)
B
L
3 IC1
L–Y
4 A 3 B
2 IC1
7 IK1
8 IK1
L–B
1 A 1 B
W–B
18 A 8 B
8 IC1
W–B
2
M
1
P10 Power Window Regulator Motor (Front LH)
W(∗1)
W(∗1)
W(∗1)
W(∗1) W
B
5
2
SU
SD
Up
Down
4 B
D
3
1
L–B
U
L
W–B
P14 Power Window SW (Front Passenger' s Side)
L–Y
W
2
5 W–B
J1 Junction Connector
4
M
1
P11 Power Window Regulator Motor (Front RH)
IA
197 TOYOTA TACOMA (EM01D0U)
Power Window ∗ 1 : Double Cab
P 9(A), (B) Power Window Master SW
Up
Up Normal
G
(∗1)
IL2
G
8 BB1
7 BA1
(∗1)
G 1
(∗1)
G–B
(∗1) (∗1)
G–B
IL2
G–B
G–R
8 BA1
6 IC1
(∗1)
G–R
(∗1)
5
10 IE1
(∗1)
G–W
20 IE1
5 IC1
(∗1)
G–R
1 IC1
(∗1)
G–W
7 IC1
16 A (∗1)
10 A
13 A
(∗1)
G–W
12 A
(∗1)
Lock
Window Lock SW
Down
Rear RH
Down
Rear LH
7 BB1
W(∗1)
G
2
4
SU
SD
U
D
5
1
5
2
M
1
L–B
D
1
L
Up
U
L–B
Up
Down
3 B
P16 Power Window SW (Rear RH)
4 SD
Down
2 SU
(∗1)
(∗1)
G–B
W(∗1)
G
(∗1)
(∗1)
G–B
3 B
L
P15 Power Window SW (Rear LH)
W(∗1)
W(∗1)
2
P12 Power Window Regulator Motor (Rear LH)
M
1
P13 Power Window Regulator Motor (Rear RH)
198 TOYOTA TACOMA (EM01D0U)
System Outline With the ignition SW turned on, current flows through the IG1 NO.2 fuse to TERMINAL 5 of the body ECU to TERMINAL 13 to TERMINAL 1 of the P/W relay to TERMINAL 2 to GROUND, activating the P/W relay, and the current flowing from TERMINAL 3 of the P/W relay flows to TERMINAL 5 to D FR P/W fuse to TERMINAL (A) 7 (Double cab), (B) 9 (Access cab) of the power window master SW, P FR P/W fuse to TERMINAL 4 of the power window SW (Front passenger’s side), D RR P/W fuse to TERMINAL 3 of the power window SW (Rear LH), P RR P/W fuse to TERMINAL 3 of the power window SW (Rear RH). 1. Manual Operation (Driver’s Window) With the ignition SW turned on and with the power window master SW (Manual SW) in UP position, the current flowing to TERMINAL (A) 7 (Double cab), (B) 9 (Access cab) of the power window master SW flows to TERMINAL (A) 4 (Double cab), (B) 3 (Access cab) to TERMINAL 2 of the power window regulator motor (Front LH) to TERMINAL 1 to TERMINAL (A) 9 (Double cab), (B) 4 (Access cab) of the master SW to TERMINAL (A) 1 (Double cab), (B) 1 (Access cab) to GROUND and causes the power window regulator motor to rotate in the up direction. The window ascends only while the SW is being pushed. In down operation, the current flowing from TERMINAL (A) 7 (Double cab), (B) 9 (Access cab) of the power window master SW to TERMINAL (A) 9 (Double cab), (B) 4 (Access cab) flows to TERMINAL 1 of the motor LH to TERMINAL 2 to TERMINAL (A) 4 (Double cab), (B) 3 (Access cab) of the master SW to TERMINAL (A) 1 (Double cab), (B) 1 (Access cab) to GROUND, flowing in the opposite direction to manual up operation, causing the motor to rotate in reverse and lowering the window. 2. Auto Down Operation (Driver’s Window) With the ignition SW on and with the auto SW of the power window master SW in DOWN position, the current flowing to TERMINAL (A) 7 (Double cab), (B) 9 (Access cab) of the master SW flows to TERMINAL (A) 9 (Double cab), (B) 4 (Access cab) of the master SW to TERMINAL 1 of the power window regulator motor (Front LH) to TERMINAL 2 to TERMINAL (A) 4 (Double cab), (B) 3 (Access cab) of the master SW to TERMINAL (A) 1 (Double cab), (B) 1 (Access cab) to GROUND, causing the motor to rotate towards the down side. Then the solenoid in the master SW is activated and it locks the auto SW being pushed, causing the motor to continue to rotate in auto down operation. When the window has completely descended, the current flowing between TERMINAL (A) 4 (Double cab), (B) 3 (Access cab) of the master SW and TERMINAL (A) 1 (Double cab), (B) 1 (Access cab) increases. As a result, the solenoid stops operating, the auto SW turns off and the flowing from TERMINAL (A) 7 (Double cab), (B) 9 (Access cab) of the master SW to TERMINAL (A) 9 (Double cab), (B) 4 (Access cab) is cut off, stopping the motor so that auto stop occurs. 3. Stopping of Auto Down at Driver’s Window When the manual SW (Driver’s) is pushed to the up side during auto down operation, a ground circuit opens in the master SW and current does not flow from TERMINAL (A) 4 (Double cab), (B) 3 (Access cab) of the master SW to TERMINAL (A) 1 (Double cab), (B) 1 (Access cab), so the motor stops, causing auto down operation to stop. If the manual SW is pushed continuously, the motor rotates in the up direction in manual up operation. 4. Manual Operation by Power Window Control SW (Front RH Window) With the power window SW (Front passenger’s side) is pushed to the up side, the current flowing from TERMINAL 4 of the power window SW (Front passenger’s side) flows to TERMINAL 3 to TERMINAL 2 of the power window regulator motor (Front RH) to TERMINAL 1 to TERMINAL 1 of the power window SW (Front passenger’s side) to TERMINAL 2 to TERMINAL (A) 15 (Double cab), (B) 10 (Access cab) of the master SW to TERMINAL (A) 1 (Double cab), (B) 1 (Access cab) to GROUND. This causes the power window regulator motor (Front RH) to rotate in the up direction. Up operation is continuous only while the power window control SW RH is pushed to the up side. When the window descends, the current flowing to the motor flows in the opposite direction, from TERMINAL 1 to TERMINAL 2, and the motor rotates in revers. When the window lock SW is pushed to the lock side, the ground circuit to the front RH window becomes open. As a result, even if Open/Close operation of the front RH window is tried, the current from TERMINAL (A) 1 (Double cab), (B) 1 (Access cab) of the power window master SW is not grounded and the motor does not rotate, so the front RH window can not be operated and window lock occurs.
199 TOYOTA TACOMA (EM01D0U)
Power Window 5. Manual Operation (Rear LH, RH Window) [Double Cab] With the power window SW (Rear LH, RH) pulled to the up side, the current flowing from TERMINAL 3 of the power window SW flows to TERMINAL 1 to TERMINAL 2 of the power window regulator motor to TERMINAL 1 to TERMINAL 5 of the power window SW to TERMINAL 4 to TERMINAL (A) 13 (LH) or (A) 16 (RH) of the master SW to TERMINAL (A) 1 to GROUND and causes the power window regulator motor (Rear LH, RH) to rotate in the up direction. The up operation continues only while the power window control SW is pulled to the up side. When the window descends, the current flowing to the motor flows in the opposite direction, from TERMINAL 2 to TERMINAL 1, and the motor rotates in reverse. When the window lock SW is pushed to the lock side, the ground circuit to the rear LH, RH window becomes open. As a result, even if Open/Close operation of the rear LH, RH window is tried, the current from TERMINAL (A) 1 of the power window master SW is not grounded and the motor does not rotate, so the rear LH, RH window can not be operated and window lock occurs. 6. Key Off Power Window Operation With the ignition SW turned from on to off, the body ECU operates for about 45 seconds and current flows from TERMINAL 1 of the P/W relay to TERMINAL 2 to GROUND. For this period, current also flows TERMINAL 1 to TERMINAL 2. This current flows to TERMINAL (A) 7 (Double cab), (B) 9 (Access cab) of the power window master SW and to TERMINAL 4 (Front RH), 3 (Rear) of the power window SW. As a result, for about approx. 43 seconds after the ignition SW is turned off, it is possible to raise and lower the power window by the functioning of the body ECU. Also, by opening the door (Door courtesy SW on) within about 45 seconds after turning the ignition SW to off, a signal is input to the body ECU. As a result, the body ECU turns off, and up and down movement of the window stops. : Parts Location Code
See Page 46 (*1)
D11
48 (*2) 48 (*2)
J1 P9
P11
45 A
47 (*1)
See Page B
P10
46 (*1)
D12
Code P9
P12
Code
48 (*2)
P13
47 (*1)
P14
48 (*2)
2
See Page 24
1A
47 (*1)
48 (*2)
P16
47 (*1)
47 (*1)
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
1C 1F 1H 1I
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
28
Floor No.2 Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IC1
54
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IE1
54
Instrument Panel Wire and Floor No.2 Wire (Left Kick Panel)
IK1
55
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
55
Instrument Panel Wire and Floor Wire (Right Kick Panel)
BA1
56 (*1)
Rear Door No.2 Wire and Floor No.2 Wire (Under the Left Center Pillar)
BB1
56 (*1)
Rear Door No.1 Wire and Floor Wire (Under the Right Center Pillar)
BF1
57 (*2)
Rear Door No.2 Wire and Floor No.2 Wire (Under the Left Quarter Panel)
BG1
57 (*2)
Rear Door No.1 Wire and Floor Wire (Under the Right Quarter Panel)
IL1 IL2
* 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
48 (*2)
P15
: Junction Block and Wire Harness Connector Code
47 (*1)
47 (*1)
: Relay Blocks Code
See Page 47 (*1)
* 4 : Separate Seat
* 5 : Bench Seat
200 TOYOTA TACOMA (EM01D0U)
: Ground Points Code IA
See Page 54
Ground Points Location Left Kick Panel
201 TOYOTA TACOMA (EM01D0U)
Door Lock Control (IG)
(BAT)
(BAT)
10A IG1 NO. 2
20A DR LCK
7. 5A ECU–B
2
R
2
16 1C
4
ECUB
18 1I
14 1I
3 1I
KSW
1
9
20 A
10 1K
18 1H 10 1F
LSWD
UL3
ACTD
23 A
3 A
LSWP 11 A
(∗2)
7 1I
GND
W–B
UL1 10
L–B
L1 12
G–B
ALTB
(∗1)
IG
B 5(A) Body ECU
6
W–R
5
G–B
W–B
W–B
B–W (∗1)
(∗2)
W–B
(∗2)
W–B
L–B
1
W–B
J 4(A), J 5(B) Junction Connector
4
L–R
W–B
15 B
(∗2)
W–B
5 B
M
W–B
5 IC3
19 A
(∗2)
W–B 9 IK3
W–B
W–B 8 IC1
5 A
W–B
D19 Door Lock Assembly (Driver' s Side)
7
W–B
9
Key Lock
2
3
10
1
Detection SW
Unlock
U1 Unlock Warning SW
1 A (∗3) 1 B (∗4)
8
9 IC3
V
5
4 IC3
Key Unlock
GR
6
8 IC3
G–B
L–W
8 A (∗3) 5 B (∗4)
(∗1)
GR
5 A 2 B
10 IC3
W–R
7 IK3
D23 Door Lock Control SW Lock
8 IK3
Unlock
6 IC3
P 9(A), (B) Power Window Master SW Lock
7 IC3
L–W
V
GR
L–W
GR
L–W
V
L–R W–B
W–B
W–B
J1 Junction Connector
5
IA
202 TOYOTA TACOMA (EM01D0U)
IC
(∗2)
W–B
6
(∗2)
W–B
1
W–B
W–B
4
W–B
W–B
W–B
∗ ∗ ∗ ∗ ∗ ∗
1 2 3 4 5 6
: w/ Door Lock Control : w/o Door Lock Control : Double Cab : Access Cab : Separate Seat : Bench Seat
B 5(A) Body ECU
ACT–
ACT+
14
16
3
2
4 1I
19 1I
5 1H
23 1H
UL2
DBKL 21 A
B–O
L2
1 1F
2 1F
4 1H
22 1H
L–B
5 IK1
10 IK1
3 BA1
(∗3)
L–R
4 IK3
L–R
L–B
5 IK3
(∗3)
P
7
IL2
3
(∗3)
(∗3)
L–B
V
B–W
L–R
13 1J
V
V
17 1I
L–R
24 1H
IL2
9 1F
3 BB1
2 BB1
B–O
F21 Front Seat Inner Belt (Driver' s Side)
(∗6)
B–O 1
1
2
1
W–B
(∗6)
M
2
W–B
D20 Door Lock Assembly (Front Passenger' s Side)
4
F22 Front Seat Inner Belt (Driver' s Side)
M
1 8
(∗3)
L–R
(∗3)
L–B
(∗3)
L–R
4
D22 Door Lock Assembly (Rear RH)
M
D21 Door Lock Assembly (Rear LH)
L–R
4
(∗3)
L–B
1
L–B
P 5
Key Unlock
6
Key Lock
Detection SW
7
V
(∗1)
L–R
B–W
2 BI2
(∗5)
2 BA1
(∗6)
B–O
(∗3)
L–B
L–R
6 IK3
(∗3)
B–W
10 IC1
(∗1)
L–R
(∗1)
10 IK3
L–R
W–B
5 W–B
J14 Junction Connector
6
(∗5)
(∗6)
W–B
W–B
1 BI2
13 W–B
W–B
W–B
W–B
2
J13 Junction Connector IE
BA
203 TOYOTA TACOMA (EM01D0U)
Door Lock Control System Outline 1. Manual Unlock Operation When the door lock control SW of the driver’s or passenger’s side door is pushed to UNLOCK, the door lock will unlock. 2. Manual Lock Operation When the door lock control SW of the driver’s or passenger’s side door is pushed to LOCK, the door lock will lock. 3. Door Key Unlock Operation ∗ Unlock operation from driver’s side door When the driver’s side door is unlocked once using the ignition key, only the driver’s side door is unlocked. If this operation is repeated within 3 seconds, all the other doors are unlocked. ∗ Unlock operation from front passenger’s side door When the front passenger’s side door is unlocked using the ignition key, all the other doors are unlocked, too. : Parts Location Code B5
See Page A
Code
44
D23
46 (*1)
D19 D20
See Page
J13
48 (*2)
J14
48 (*2)
F21
50 (*4)
46 (*1)
F22
51 (*5)
48 (*2)
J1
Code
46 (*1)
P9
45
D21
46 (*1)
J4
A
45
D22
46 (*1)
J5
B
45
U1
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
1C
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1F
28
Floor No.2 Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
1H 1I 1J 1K
: Connector Joining Wire Harness and Wire Harness Code IC1 IC3 IK1 IK3
See Page
Joining Wire Harness and Wire Harness (Connector Location)
54
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
55
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
IL2
55
Instrument Panel Wire and Floor Wire (Right Kick Panel)
BA1
56 (*1)
Rear Door No.2 Wire and Floor No.2 Wire (Under the Left Center Pillar)
BB1
56 (*1)
Rear Door No.1 Wire and Floor Wire (Under the Right Center Pillar)
BI2
61 (*5)
Floor No.2 Wire and Seat No.1 Wire (Under the Front Seat LH)
: Ground Points Code
See Page
Ground Points Location
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
IE
54
Right Kick Panel
BA
56 (*1) 57 (*2)
* 1 : Double Cab
Floor Seat Cross Member LH * 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
204 TOYOTA TACOMA (EM01D0U)
See Page 45 45 A
47 (*1)
B
48 (*2) 45
Memo
205 TOYOTA TACOMA (EM01D0U)
Wireless Door Lock Control (BAT)
(IG)
10A HORN
(BAT)
10A IG1 NO. 2
20A DR LCK
2
W–G
2
W–G
5
5
HORN
KSW
GND
15
9
1
10 1C
10 1K
18 1H
LSWD
UL3
ACTD
20 A
23 A
3 A
2
GR
G–R
2
ALTB
L–B
IG
2
B 5(A) Body ECU
4
G–B
3
HORN Relay
1
2
W–R
2
11 1E
V
W–B
W–B
G–B
G–R
V
G–B
V
L–B
9 IC3
8
10
9
1
Key Lock
4 IC3
W–R
8 IC3
Detection SW
1
W–B
W–B
7
D19 Door Lock Assembly (Driver' s Side)
M
4
L–R
2
Key Unlock
U1 Unlock Warning SW
10 IC3
W–B
5 IC3
L–R
W–B
W–B
W–B
W–B
W–B
W–B
1
4
6
J1 Junction Connector IC
IA
206 TOYOTA TACOMA (EM01D0U)
T11 Turn Signal Flasher
∗ 1 : Double Cab ∗ 2 : Access Cab
HAZ
W
10
8 1L
B 5(A) Body ECU
25
LSWP
ACT–
ACT+
DCTY
14
16
3
2
26
4 1I
19 1I
5 1H
23 1H
2 1F
1 1F
L–R
HAZ
UL2
L2
3 BA1
2 BA1
3 BB1
2 BB1
P
L–B
L–R
L–B
L–R
L–B
L–R
7
6
5
1
4
(∗2)
G–Y (∗1)
G–Y
(∗1)
L–R
IL2
(∗1)
(∗1) (∗1)
(∗1)
(∗1)
L–B
J14 Junction Connector 8
W–B
13
M
(∗2)
G–Y
1
4
D11 Door Courtesy SW (Driver' s Side)
M
D22 Door Lock Assembly (Rear RH)
D21 Door Lock Assembly (Rear LH)
Key Unlock
Key Lock
M
1
D20 Door Lock Assembly (Front Passenger' s Side)
W–B W–B
3
2 BF1
10 IK3
5
IL2
7 1F
(∗1)
L–R
L–B
10 IK1
8
1
W–B
W–B
W–B
W–B
(∗1)
L–R
5 IK1
V
L–B L–B
4 IK3
(∗1)
P
5 IK3
(∗1)
V B–W 6 IK3
Detection SW
10 IC1
7
4
L–R
22 1H
B–W
V
4 1H
L–R
17 1I
L–R
V
24 1H
L–R
B–W
11 A
2
J13 Junction Connector IE
207 TOYOTA TACOMA (EM01D0U)
2 1 2
L
Y
R
L
6
1
BE
208
TOYOTA TACOMA (EM01D0U) (∗2)
(∗2)
P–B
ECUB
1
D16 Door Courtesy SW (Rear RH Lower Side) P–B
(∗2)
7 BF1
P–B
P–B (∗1, ∗2)
16 1I
(∗2)
9
D17 Door Courtesy SW (Rear RH Upper Side) P–B
IL1
(∗1)
P–B
PCTY RCTY ILE
20 22 7
15 1J 9 1E
6 1F
R
D7 Door Control Receiver
2
(∗2)
D18 Door Courtesy SW (Rear RH)
(∗2)
P–B
W–B
R
7. 5A ECU–B
W–B
1
(∗2)
(∗2)
P–B
2
(∗2)
1
D13 Door Courtesy SW (Rear LH Lower Side) P–B
(∗2)
(∗1)
P–B
(∗2)
R–B
R–B
B 5(A) Body ECU 16 1C
W–B
2
(∗2)
1
D14 Door Courtesy SW (Rear LH Upper Side) P–B
(∗2)
R–B
2 BG1
W–B
1
D15 Door Courtesy SW (Rear LH)
5
(∗1)
R–B
8 1I
(∗2)
W–B
D12 Door Courtesy SW (Front Passenger' s Side)
Wireless Door Lock Control (BAT)
5 +B GND
1
RDA PRG
2 3
7 A RDA
6 A PRG
IL1
7 BG1
L
2
W–B
W–B
W–B
BF
∗ 1 : Double Cab ∗ 2 : Access Cab
(BAT)
7. 5A DOME
2
W
2
4 1C
W
2 1E
OFF ON 3
W–B
DOOR 2
L
R7 Room Lamp (Center)
1
L
W–B
209 TOYOTA TACOMA (EM01D0U)
Wireless Door Lock Control System Outline Door lock control (Lock and unlock) and panic control (Theft alarm and flash) is performed by remote control, without the ignition key inserted in the door key cylinder, using low–power electrical waves emitted by a transmitter. 1. Normal Operation ∗ Lock operation When the lock SW on the transmitter is pressed, all the doors are locked. ∗ Unlock operation When the unlock SW on the transmitter is pressed once, only the driver door is unlocked. When the unlock SW is pressed again within 3 seconds, all the doors are unlocked. 2. Auto Lock Function When the door is not actually opened within 30 seconds after the door has been unlocked by the unlock SW on the transmitter, all the doors are automatically locked. If any of the following conditions are detected, the wireless door lock does not function. ∗ Any door is opened. ∗ The ignition key is inserted into the ignition SW. ∗ When the lock detection SW of all the doors are locked. 3. Wireless Door Lock Stop Function If any of the following conditions are detected, the wireless door lock does not function. Lock operation ∗ When any door is open (Door courtesy SW on) ∗ The ignition key is inserted into the ignition SW (Unlock warning SW on) ∗ Ignition SW is on Unlock operation ∗ Ignition SW is on 4. Visual Confirmation of Lock or Unlock During lock operation, when the body ECU receives a lock signal from the door lock detection SW, the turn signal light is flashed once. During unlock operation, when the body ECU receives an unlock signal from the door lock detection SW, the turn signal light is flashed twice. 5. Remote Panic Operation Panic will function when doors are locked or unlocked, open or closed. When the panic button (Transmitter) is pushed once, interior lights light up, and theft alarm and horn sounds and turn signal light, headlights and taillight flash. Then, the panic or the unlock button (Transmitter) is pushed once more, interior lights are turned off, sounding and flashing will stop. Panic will not function when ignition key is in ignition key cylinder. 6. Repeat Function If the lock detection signal in response to the output signal is not received after the body ECU has output the lock signal, the lock signal is output again. 7. Illuminated Entry Function When the body ECU detects the unlock state after the unlock operation has been made, it turns on the lights, such as the interior light for approx. 15 sec. If all the doors are locked during this operation, lighting is cancelled and the lights immediately fade out. : Parts Location Code B5
See Page A
D7 D11 D12
Code
See Page
See Page
D16
48 (*2)
J1
45
44
D17
48 (*2)
J13
45
46 (*1)
D18
46 (*1)
J14
45
48 (*2) 46 (*1) 48 (*2)
D19 D20
46 (*1)
48 (*2)
T11
45
48 (*2)
U1
45
D14
48 (*2)
D21
46 (*1)
D15
46 (*1)
D22
46 (*1)
* 3 : Regular Cab
47 (*1)
46 (*1)
48 (*2)
* 2 : Access Cab
R7
48 (*2)
D13
* 1 : Double Cab
Code
44
* 4 : Separate Seat
* 5 : Bench Seat
210 TOYOTA TACOMA (EM01D0U)
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
1C
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1E
28
Roof Wire and Driver Side J/B (Lower Finish Panel)
1F
28
Floor No.2 Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
29
Relay Wire and Driver Side J/B (Lower Finish Panel)
1H 1I 1J 1K 1L
: Connector Joining Wire Harness and Wire Harness Code IC1
See Page
Joining Wire Harness and Wire Harness (Connector Location)
54
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
55
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
55
Instrument Panel Wire and Floor Wire (Right Kick Panel)
BA1
56 (*1)
Rear Door No.2 Wire and Floor No.2 Wire (Under the Left Center Pillar)
BB1
56 (*1)
Rear Door No.1 Wire and Floor Wire (Under the Right Center Pillar)
BF1
57 (*2)
Rear Door No.2 Wire and Floor No.2 Wire (Under the Left Quarter Panel)
BG1
57 (*2)
Rear Door No.1 Wire and Floor Wire (Under the Right Quarter Panel)
IC3 IK1 IK3 IL1 IL2
: Ground Points Code
See Page
Ground Points Location
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
IE
54
Right Kick Panel
BE
57 (*2)
Inside of the Access Door LH
BF
57 (*2)
Inside of the Access Door RH
* 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
211 TOYOTA TACOMA (EM01D0U)
Multi Mode 4WD and Rear Differential Lock (BAT)
7. 5A GAUGE
(IG)
(ST)
7. 5A STA
10A IG1
7. 5A ECU–B
2
2 3 1J
2
2
P
P
V
(M/T)
R
(A/T)
13 1H
9 1J
6 2A
7 PF
16 1C
(M/T)
(IG)
V
12 IH1
SE
V
N 9
SI
W
R–Y
L–B
(M/T)
(∗2)
(∗1)
(M/T)
W
2
8 PB
4 DD
6 PD
4 DB
8 IH1
(M/T)
R–Y
9 IH1
L–B
(M/T)
(A/T)
G–W O
B
BR
Y
Speed Sensor (Rear)
P
L
R
Speed Sensor (Front LH, RH)
G
R–Y
36 IA1
(A/T)
IJ1
1
3
(M/T)
3 A
(M/T)
R–Y
6 A
(A/T)
2 A
W–B
R 6
R
IJ1
BR–W
7
19 A
V–W
15 B
BR–W
16 B
L–Y
14 B
(M/T)
Y
(A/T)
2
L–W
2
D6 Diode (Clutch Start)
IG+
G–W
Speed Control
1
P1 Park/Neutral Position SW
P
V1 Vehicle Speed Sensor (Combination Meter)
1 A
(M/T)
R
C 9(A), C10(B) Combination Meter
4WD
4LO
Rear Diff. Lock
21 A
5 2A
4 PA
13 1K
L–B (M/T)
12 A 18 B SP1
18 A 10 B FL+
4 A 9 B FL–
3 A 40 B FR+
17 A 39 B FR–
20 A 15 B RL+
6 A 16 B RL–
5 A 44 B RR+
19 A (∗3) 45 B (∗4)
G–W
RR–
(A/T)
S 1(A), (B) Skid Control ECU with Actuator V–W R BR–W L–Y
W–B
212 TOYOTA TACOMA (EM01D0U)
(IG)
∗ ∗ ∗ ∗
(IG)
1 2 3 4
: 1GR–FE A/T : 2TR–FE A/T : w/ VSC : w/o VSC
10A IG1 NO. 2
20A 4WD
17 1H
LG
14 1C
13 DC
LG
5 DA
V
D5 Diff. Lock SW RR DIFF LOCK
3
R–B
4
5 A
16 A
IG
R
F12(A), F13(B) 4WD Control ECU MTN 23 A
SPD
N 22 A
9 A
IND1 19 A
IND3 11 A
M1
RLP 20 A
2 A
M2
RLY1
1 A
13 A
2 PD
LG–B LG–B 2 BD1
LG–B
P P 1 BD1
LG–Y
L L 5 BD1
LG–R
LG 3 BD1
3
2
W–B
M1
6 M2
Limit SW
5 RLY1
RLY2
M 6 BD1
W–B
V–W
8 ID1
2
1 13 DB
(A/T)
L–Y
G–W
10 ID1
LG
L–B (M/T)
7 ID1
LG
7 DD
T13 Transfer Indicator SW (Rear Diff. )
5 PD
9 ID1
L–Y
2 DB
4 BD1
L–Y
L–Y
BR–W
R
V–W
(A/T)
G–W
L–B
(M/T)
L–Y
4 IB1
RLY2 21 A
GND 4
V–W
W–B
6 1D
R BR–W
D10 Diff. Lock Shift Actuator Assembly
7 BD1 18 1H
7 1D
W–B
L–Y
4 W–B
W–B
W–B
J1 Junction Connector
2
IA
213 TOYOTA TACOMA (EM01D0U)
Multi Mode 4WD and Rear Differential Lock
W–B
∗ 5 : w/ ADD
T4 Transfer Shift Actuator Assembly
W–B
A3 ADD Actuator Assembly
4
(∗5)
4
GND
GND
H2
LG
(∗5)
(∗5)
P–L
(∗5)
TL2
6
LG–B
TL3 3
DL1
5
(∗5)
TL1 5
DL2
3
B–W
TM2 1
ADD
2
R
TM1 2
DM2
1
(∗5)
L4
DM1
(∗5)
M
W–B
Limit SW
H4 M
6 2 EC1
4 EC1
5 EC1
3 EC1
6 EC1
(∗5)
LG–B
1 EC1
W–B
(∗5)
W–B
(∗5)
LG
(∗5)
(∗5)
P–L
(∗5)
B–W
R
(∗5)
L–W
L–B
L–Y
L
G
17 PB
2 B TM1
1 B
25 B
TM2
TL1
23 B TL3
24 B
3 B
TL2
DM1
4 B
(∗5)
LG–B
13 PA
26 B
DM2
12 B
ADD
13 B
DL2
DL1
F12(A), F13(B) 4WD Control ECU 2–4
L
5
2
L4 17 B
4WD 22 B
22 PA
R–L
Y–B
15 A
GR
LO
8 A
W–B
GND 6 A
H2
L4
W–B 12
1
7 PA
6 PA
8 PA
J5 Junction Connector
J14 Junction Connector
2
2
4
4
1
T2 Transfer Indicator SW (4WD Position) W–B
H4
T3 Transfer Indicator SW (L4 Position) W–B
F15 4WD Control SW
Y–B
21 PA
15
13
IE
IC
EE
(2TR–FE)
W–B
(1GR–FE)
W–B
J13 Junction Connector
W–B
2
19 PA
W–B
W–B
18 PA
EH
214 TOYOTA TACOMA (EM01D0U)
System Outline Depending on the transfer shift actuator status and ADD actuator status, the 4WD control ECU drives the transfer shift actuator and ADD actuator to electrically change the gear position selected by the driver according to vehicle speed signal and neutral start switch signal. 1. Shift Select Control Shifting from H2 into H4 position When the 4WD control switch is turned from H2 into H4, this signal is input into 4WD control ECU (TERMINAL 2–4). Then, the 4WD control ECU moves the 2–4 select motor (TERMINAL 2, TERMINAL 1) in the transfer shift actuator assembly until the shift fork shaft shifts to the diff. free position, performing a shift into H4 position Shifting from H4 into L4 position When the 4WD control switch is turned from H4 into L4, this signal is input into 4WD control ECU (TERMINAL LO). Then, the 4WD control ECU drives the 2–4 select motor (TERMINAL 2, TERMINAL 1) in the transfer shift actuator assembly, shifting the shift fork shaft, performing a shift into L4 position. Switching diff. lock ON when in L4 position. When the diff. lock switch is turned ON with the 4WD control switch in L4 position, this signal is input into the 4WD control ECU (TERMINAL R). Then, the 4WD control ECU drives the diff. lock shift actuator (TERMINAL 2, TERMINAL 3) in the diff. lock shift actuator assembly until the shift fork shaft shifts to the diff. lock position, locking it in L4 position with the diff. lock. 2. Function of Limit Switch Rear diff. lock limit switch (TERMINAL 5 and TERMINAL 6 of diff. lock shift actuator assembly) The rear diff. lock limit switch in the diff. lock shift actuator assembly feeds back the current rear diff. lock status (Free or lock) information, which is based on the ON/OFF combination of the two switches, to the 4WD control ECU. 4WD limit switch (TERMINAL 3, TERMINAL 5 and TERMINAL 6 of transfer shift actuator assembly) The 4WD limit switch in the transfer shift actuator assembly feeds back the current shift position status (H2 or H4) and diff. lock or diff. free status information, which is based on the ON/OFF combination of the three switches, to the 4WD control ECU. ADD limit switch (TERMINAL 6 and TERMINAL 5 of ADD actuator assembly) The ADD limit switch in the ADD actuator assembly feeds back the current front diff. lock or free status information, which is based on the ON/OFF combination of the two switches, to the 4WD control ECU. 3. Shift Limit Control The 4WD control ECU interrupts the shift select control and give the driver a warning by means of buzzer (Integrated into the ECU) sound and blinking indicator light on the combination meter when the following shift change conditions exist. The warning, however, can be canceled –– when the 4WD control switch is canceled and the switch position is returned to where it was before the warning occurred. ∗ Shift change from H2 into H4 with vehicle traveling at a speed reaching or exceeding 100 km/h (Buzzer sound and blinking 4WD indicator lights) ∗ Shift change from H4 into L4 with vehicle traveling at a speed reaching or exceeding 5 km/h but within the A/T shift position N range (Buzzer sound and blinking 4LO indicator light) (A/T) ∗ Shift change from H4 into L4 with vehicle traveling at a speed reaching or exceeding 3 km/h but within the clutch start SW on position (Buzzer sound and blinking 4LO indicator light) (M/T) 4. ADD Actuator Control (1GR–FE) When switching between H2 (2WD) and H4 (4WD), the 4WD control ECU controls the way power is supplied to the ADD motor in the ADD actuator assembly, as shown below, to run the ADD motor in normal or reverse direction, thereby changing the status of the front diff. from free to lock, or vice versa. For locking front diff. For unlocking front diff.
TERMINAL DM1 TERMINAL DM2 TERMINAL DM1 TERMINAL DM2
+B GROUND GROUND +B
215 TOYOTA TACOMA (EM01D0U)
Multi Mode 4WD and Rear Differential Lock : Parts Location Code
See Page
A3
Code
See Page
40 (1GR–FE)
F15
44
42 (2TR–FE)
J1
45
C9
A
44
J5
45
C10
B
44
J13
45
D5
44
J14
45
D6
44 48 (*2)
D10 F12
A
44
F13
B
44
T3 T4
43 (2TR–FE) A
49 (*3)
T2
41 (1GR–FE)
P1
46 (*1)
Code
S1 B
2
See Page 24
41 (1GR–FE)
T13
43 (2TR–FE) V1
43 (2TR–FE)
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
See Page
Junction Block and Wire Harness (Connector Location)
1C
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1D
28
Frame Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
24
Engine Room J/B (Engine Compartment Left)
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
1H 1J 1K 2A DA DB DC DD PA PB PD PF
: Connector Joining Wire Harness and Wire Harness Code EC1
See Page 52 (1GR–FE) 53 (2TR–FE)
Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Differential Wire (Near the Front Differential)
IA1
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IB1
54
Frame Wire and Engine Room Main Wire (Left Kick Panel)
ID1
54
Frame Wire and Instrument Panel Wire (Left Kick Panel)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
IJ1
55
Instrument Panel Wire and Instrument Panel Wire (Right Kick Panel)
56 (*1) BD1
57 (*2)
Frame Wire and Differential Wire (Near the Rear Differential)
58 (*3) * 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
41 (1GR–FE) 43 (2TR–FE) 41 (1GR–FE) 43 (2TR–FE) 48 (*2) 49 (*3)
41 (1GR–FE)
: Junction Block and Wire Harness Connector Code
43 (2TR–FE)
47 (*1)
: Relay Blocks Code
See Page 41 (1GR–FE)
* 5 : Bench Seat
216 TOYOTA TACOMA (EM01D0U)
41 (1GR–FE) 43 (2TR–FE)
: Ground Points Code
See Page
Ground Points Location
EE
52 (1GR–FE)
Rear Side of Right Bank Cylinder Block
EH
53 (2TR–FE)
Rear Side of Cylinder Block
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
IE
54
Right Kick Panel
217 TOYOTA TACOMA (EM01D0U)
Rear Differential Lock for 2WD (IG)
(IG) 10A IG1 NO. 2
20A 4WD
17 1H
LG
14 1C
13 DC
V
V–W
V–W
3
2 PD
L–Y
D5 Diff. Lock SW RR DIFF LOCK
LG
5 DA
5 PD
5
1
R
SPD
IG
7 DD
13 DB
L–Y
L–Y
4
L–Y
V–W
F14 4WD Control ECU
2 DB
10
R–B
4
RLP
GND
M1
M2
3
6
LG–B
RLY2
9
P
RLY1
L
2
LG 9 ID1
7 ID1
10 ID1
8 ID1
4 BD1
LG–B 2 BD1
LG–Y
LG–B
3
2
6
5
L–Y
2
1
W–B
P 1 BD1
T13 Transfer Indicator SW (Rear Diff. )
L 5 BD1
LG–R
6 BD1
13
M1
M2
Limit SW
RLY1
W–B
J14 Junction Connector
LG
4
3 BD1
LG
L–Y
W–B
7
L–Y
4 IB1
RLY2
M
6 1D
4 7 1D
W–B
W–B
GND
D10 Diff. Lock Shift Actuator Assembly
18 1H
7 BD1
2
J13 Junction Connector
W–B
IE
218 TOYOTA TACOMA (EM01D0U)
W–B
(IG)
(BAT)
(IG)
10A IG1
7. 5A ECU–B
7. 5A GAUGE
2
R
P
V
(M/T)
9 1J
2
3 1J
16 1C
7 PF
13 1K
4 PA
1 A
V1 Vehicle Speed Sensor (Combination Meter)
Speed Control
Rear Diff. Lock
IG+
SE
SI
2
3 A
W
(M/T)
R–Y
36 IA1
(M/T)
R–Y
(A/T)
W–B
W
6 A
R–Y
2 A
14 B
3
(M/T)
C 9(A), C10(B) Combination Meter
1
(M/T)
R
19 A
P
V–W
21 A
(M/T)
V
V–W
9 IH1
8 IH1
W–B
SP1
2 W–B
P
Y
BR
B
18 A 10 B
4 A 9 B
3 A 40 B
17 A 39 B
20 A 15 B
6 A 16 B
5 A 44 B
FL+
FL–
FR+
FR–
RL+
RL–
RR+
O
L
Speed Sensor (Rear)
R
12 A 18 B
Speed Sensor (Front LH, RH)
G
R–Y
(A/T)
L–Y
19 A (w/ VSC) 45 B (w/o VSC) RR–
S 1(A), (B) Skid Control ECU with Actuator J1 Junction Connector
4
IA
219 TOYOTA TACOMA (EM01D0U)
Rear Differential Lock for 2WD System Outline This system frees or locks the rear differential according to the position of the diff. lock SW. The differential will lock only when the transfer indicator SW (Rear diff.) is on and the vehicle speed is at 8 km/h (5 mph) or less. When the diff. lock SW is switched from OFF position to ON position, current flows to TERMINAL 4 of the 4WD control ECU. If the limit SW on the lock side inside the diff. lock shift actuator assembly is on at this time, until the limit SW is turned off, current flows from the 4WD fuse to TERMINAL 5 of the 4WD control ECU to TERMINAL 3 to TERMINAL 3 of the diff. lock shift actuator to TERMINAL 2 to TERMINAL 2 of the 4WD control ECU to TERMINAL 7 to GROUND. This drives the diff. lock shift actuator and locks the rear differential. When the rear differential locks, the transfer indicator SW (Rear diff.) turns on, lighting up the rear diff. lock indicator light in the combination meter. When the diff. lock SW is switched from ON position to OFF position, the current to TERMINAL 4 of the 4WD control ECU is cut off. If the limit SW on the free side inside the diff. lock shift actuator asesmbly is on, until the limit SW is turned off, current flows from the 4WD fuse to TERMINAL 5 of the 4WD control ECU to TERMINAL 2 to TERMINAL 2 of the diff. lock shift actuator assembly to TERMINAL 3 to TERMINAL 3 of the 4WD control ECU to TERMINAL 7 to GROUND. This drives the diff. lock shift actuator and frees the rear differential. When the rear differential is free, the transfer indicator SW (Rear diff.) and the rear diff. lock indicator light in the combination meter are turned off. The rear diff. lock indicator light flashes when: ∗ The diff. lock SW is switched to ON position during differential lock prohibition conditions (Vehicle speed above 8 km/h (5 mph) ). ∗ The transfer indicator SW (Rear diff.) is turned off during operation of the diff. lock shift actuator. : Parts Location Code C9 C10
See Page
Code
See Page
A
44
J1
45
B
44
J13
45
44
J14
45
D5
46 (*1)
A
48 (*2)
D10
S1
49 (*3) F14
B
44
Code T13
2
See Page 24
V1
43 (2TR–FE) 41 (1GR–FE) 43 (2TR–FE)
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
1C
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1D
28
Frame Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
1H 1J 1K DA DB DC DD PA PD PF
* 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
48 (*2) 49 (*3)
41 (1GR–FE)
: Relay Blocks Code
See Page 47 (*1)
* 5 : Bench Seat
220 TOYOTA TACOMA (EM01D0U)
41 (1GR–FE) 43 (2TR–FE)
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IB1
54
Frame Wire and Engine Room Main Wire (Left Kick Panel)
ID1
54
Frame Wire and Instrument Panel Wire (Left Kick Panel)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
56 (*1) BD1
57 (*2)
Frame Wire and Differential Wire (Near the Rear Differential)
58 (*3)
: Ground Points Code
See Page
Ground Points Location
IA
54
Left Kick Panel
IE
54
Right Kick Panel
* 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
221 TOYOTA TACOMA (EM01D0U)
Wiper and Washer with INT Time SW (IG)
(IG)
C12(A), C13(B) Combination SW
30A WIP
10A WSH
Wiper SW +B
+2
+S
INT1
B1
INT2 MIST
3 1B
OFF
Washer SW
INT
EW off
HI
on
Wiper Relay
LO
WF
P
15 1H
L
L
8 1B
+1
EW
WF 3 B
P
2 B
W1 Windshield Washer Motor
L–W
+S 1 A
L–R
+2 4 A
L–B
+1 3 A
L
+B 2 A
4
3
+2
+S
L–Y
L–Y
W–B
L–B
1 +1
9 IA4
5
W–B
W–B
E
2
W–B
B
L
M
W2 Windshield Wiper Motor
M 2
4 IA4
L–W
3 IA4
L–R
10 IA4
1
1
EB
222 TOYOTA TACOMA (EM01D0U)
IC
J1 Junction Connector IA
System Outline With the ignition SW turned on, the current flows to TERMINAL (A) 2 of the combination SW and TERMINAL 2 of the windshield wiper motor through the WIP fuse. The current flows to TERMINAL 1 of the windshield washer motor through the WSH fuse. 1. Low Speed Position With the wiper and washer SW turned to LO position, the current flows from TERMINAL (A) 2 of the combination SW to TERMINAL (A) 3 to TERMINAL 1 of the windshield wiper motor to TERMINAL 5 to GROUND and causes the windshield wiper motor to run at low speed. 2. High Speed Position With the wiper and washer SW turned to HI position, the current flows from TERMINAL (A) 2 of the combination SW to TERMINAL (A) 4 to TERMINAL 4 of the windshield wiper motor to TERMINAL 5 to GROUND and causes the windshield wiper motor to run at high speed. 3. INT Position With the wiper and washer SW turned to INT position, the wiper relay operates and current flows from TERMINAL (A) 2 of the combination SW to TERMINAL (B) 2 to GROUND. This activates the intermittent circuit and the current flows from TERMINAL (A) 2 of the combination SW to TERMINAL (A) 3 to TERMINAL 1 of the windshield wiper motor to TERMINAL 5 to GROUND and the wiper operates. Intermittent operation is controlled by a condenser charge and discharge function in the relay. 4. Washer Continuous Operation With the wiper and washer SW pulled to on position (Washer SW ON position), the current flows from the WSH fuse to TERMINAL 1 of the windshield washer motor to TERMINAL 2 to TERMINAL (B) 3 of the combination SW to TERMINAL (B) 2 to GROUND and causes the windshield washer motor to run and the window washer to spray. Simultaneously, current flows from the WIP fuse to TERMINAL (A) 2 of the combination SW to TERMINAL (A) 3 to TERMINAL 1 of the windshield wiper motor to TERMINAL 5 to GROUND, causing the wiper to function. : Parts Location Code
See Page
C12
A
44
C13
B
44
J1
Code W1
45
W2
See Page 41 (1GR–FE)
Code W2
See Page 43 (2TR–FE)
43 (2TR–FE) 41 (1GR–FE)
: Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
1B
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1H
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness Code IA4
See Page 54
Joining Wire Harness and Wire Harness (Connector Location) Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
: Ground Points Code EB
See Page 52 (1GR–FE) 53 (2TR–FE)
Ground Points Location Front Left Fender
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
223 TOYOTA TACOMA (EM01D0U)
Wiper and Washer without INT Time SW (IG)
(IG)
15 1H
L
10A WSH
3 1B
P
8 1B
L
30A WIP
C12(A), C13(B) Combination SW Wiper SW +S MIST
Washer SW
OFF
EW off
HI
on
+1
+2
+S
3 A
4 A
1 A
EW 2 B
WF
WF 3 B
10 IA4
3 IA4
W1 Windshield Washer Motor
P
+B 2 A
L–W
LO
L–R
+2
L–B
+1
L
+B
4 IA4
1 M
1
4
3
+1
+2
+S
L–Y
L–Y
W–B
L–B
L–R
L–W
2
9 IA4
5
W–B
W–B
E
2
W–B
B
L
W2 Windshield Wiper Motor
M
1
EB
IC
224 TOYOTA TACOMA (EM01D0U)
J1 Junction Connector IA
System Outline With the ignition SW turned on, the current flows to TERMINAL (A) 2 of the combination SW and TERMINAL 2 of the windshield wiper motor through the WIP fuse. The current flows to TERMINAL 1 of the windshield washer motor through the WSH fuse. 1. Low Speed Position With the wiper and washer SW turned to LO position, the current flows from TERMINAL (A) 2 of the combination SW to TERMINAL (A) 3 to TERMINAL 1 of the windshield wiper motor to TERMINAL 5 to GROUND and causes the windshield wiper motor to run at low speed. 2. High Speed Position With the wiper and washer SW turned to HI position, the current flows from TERMINAL (A) 2 of the combination SW to TERMINAL (A) 4 to TERMINAL 4 of the windshield wiper motor to TERMINAL 5 to GROUND and causes the windshield wiper motor to run at high speed. 3. MIST Position With the wiper SW turned to MIST position, current flows from TERMINAL (A) 2 of the combination SW to TERMINAL (A) 3 to TERMINAL 1 of the windshield wiper motor to TERMINAL 5 to GROUND and causes the windshield wiper motor to run at low speed. 4. Washer Continuous Operation With the wiper and washer SW pulled to washer position (Washer SW ON position), the current flows from the WSH fuse to TERMINAL 1 of the windshield washer motor to TERMINAL 2 to TERMINAL (B) 3 of the combination SW to TERMINAL (B) 2 to GROUND and causes the windshield washer motor to run and the window washer to spray. Simultaneously, current flows from the WIP fuse to TERMINAL (A) 2 of the combination SW to TERMINAL (A) 3 to TERMINAL 1 of the windshield wiper motor to TERMINAL 5 to GROUND, causing the wiper to function. : Parts Location Code
See Page
C12
A
44
C13
B
44
J1
Code W1
45
W2
See Page 41 (1GR–FE)
Code W2
See Page 43 (2TR–FE)
43 (2TR–FE) 41 (1GR–FE)
: Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
1B
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1H
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness Code IA4
See Page 54
Joining Wire Harness and Wire Harness (Connector Location) Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
: Ground Points Code EB
See Page 52 (1GR–FE) 53 (2TR–FE)
Ground Points Location Front Left Fender
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
225 TOYOTA TACOMA (EM01D0U)
Shift Lock (IG)
(ACC)
10A IG1
(BAT)
7. 5A ACC
(IG) 10A IG1 NO. 2
10A STOP
2 10 1J
14 1C
P
LG
2
(∗1)
9 1J
13 DC 7 PF
GR
∗ 1 : w/ VSC ∗ 2 : w/o VSC 12 DC
LG
(∗1)
P
(∗1)
G–W
G–W
10 PE
Shift Lock Solenoid
2
2 1B
6 1C
L
W–B
K3 Key Interlock Solenoid
1
2
W–B
5 DD
14 DB
L
W–B
15 B
21 A
J 4(A), J 5(B) Junction Connector
22 A
IC
226 TOYOTA TACOMA (EM01D0U)
(∗1)
SLS–
2
G–B
SLS+
2
2
L
L L
STP 7
3
4
1
(∗2)
KLS+ 12
L–W
E 8
1
L
S7 Shift Lock Control ECU
5
(∗1)
2
ACC
IG
(∗1)
6
S10 Stop Lamp SW
1
2
STOP LP CTRL Relay
2
System Outline When the ignition SW is turned to ACC position the current from the ACC fuse flows to TERMINAL 6 of the shift lock control ECU. When the ignition SW is turned to ON position, the current from the IG1 fuse flows to TERMINAL 1 of the shift lock control ECU. 1. Shift Lock Mechanism If the brake pedal is depressed with the ignition SW set at ON (The stop lamp SW is on), the shift lock control ECU is activated, allowing the driver to change the shift lever to a position other than the P position. 2. Key Interlock Mechanism With the ignition SW at ON or ACC position, when the shift lever is put in P position, the current flowing from TERMINAL 12 of the shift lock control ECU to key interlock solenoid is cut off. This causes the key interlock solenoid to turn off (Lock lever disengages from LOCK position) and the ignition key can be turned from ACC to LOCK position. : Parts Location Code
See Page
Code
See Page
J4
A
45
K3
45
J5
B
45
S7
45
Code S10
See Page 45
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1B
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1J
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
DB
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
1C
DC DD PE PF
: Ground Points Code IC
See Page 54
Ground Points Location Instrument Panel Brace RH
227 TOYOTA TACOMA (EM01D0U)
Remote Control Mirror (ACC)
7. 5A ACC
GR
16 1J
O1 Outer Mirror SW
8
Operation SW
Right/ Down
Left/ Up
MRH
MRV
2
4
3
LG–R
P–B
LG–B
MLV
5
P–G
MLH
RH
M+
E
6
7
W–B
LH
Select SW
MV
RH
BR–W
MH LH
Down
Up
Left
Right
B
12 PF
BR–W
3 IK3
3 IC3
P–B
2
3
2
3
MH
MV
MH
MV
M
M
M
M
M+ 1
M+
O3 Outer Rear View Mirror (RH)
1 BR–W
W–B
BR–W
O2 Outer Rear View Mirror (LH)
BR–W
BR–W
2 IK3
BR–W
LG–B
1 IK3
LG–B
LG–R
2 IC3
LG–R
1 IC3
P–G
P–B
11 PF
P–G
5 PF
6
J1 Junction Connector IA
228 TOYOTA TACOMA (EM01D0U)
: Parts Location Code
See Page
J1
45
O1
45
Code O2
See Page
Code
46 (*1)
O3
48 (*2)
See Page 46 (*1) 48 (*2)
: Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
1J
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
PF
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IC3
54
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IK3
55
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
: Ground Points Code IA
See Page 54
* 1 : Double Cab
Ground Points Location Left Kick Panel
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
229 TOYOTA TACOMA (EM01D0U)
Automatic Glare–Resistant EC Mirror (IG)
10A IG1 NO. 2
LG
8 1E
7 IG
I8 Inner Rear View Mirror
E
W–B
6
13 1E
W–B
8 1D
W–B
18 1H
4
J1 Junction Connector IA
BD
230 TOYOTA TACOMA (EM01D0U)
: Parts Location Code
See Page
I8
Code
46 (*1)
I8
See Page
Code
48 (*2)
J1
See Page 45
: Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
1D
28
Frame Wire and Driver Side J/B (Lower Finish Panel)
1E
28
Roof Wire and Driver Side J/B (Lower Finish Panel)
1H
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
: Ground Points Code IA BD
See Page 54 56 (*1) 57 (*2)
* 1 : Double Cab
Ground Points Location Left Kick Panel Near the Rear Differential
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
231 TOYOTA TACOMA (EM01D0U)
Seat Belt Warning (IG)
∗ 1 : Separate Seat ∗ 2 : Bench Seat
(IG)
7. 5A GAUGE
10A IG1
3 1J
V
P
9 1J
7 PF
21
Driver' s Seat Belt
P
13 PF
3
PBEW
10
GR–B
8
B–O
W–B
2
Front Passenger Seat Belt Warning Light
H7 Hazard Warning Signal SW Assembly
Blink
Buzzer
C9 Combination Meter
IG+
2
IL1
GR
1 1J
9 1F IL1
PBEW FSP+ 12 C
FSP– 13 C G–B(∗2)
(∗2)
G–B
(∗2)
G–R
G–B
(∗1)
BGND
(∗2)
FSR–
BSW
B
13
1
G–B
(∗2)
12
FSR+
2
BGND 14
(∗2)
(∗1)
B
2
5
11
(∗2)
BSW
5 BJ2
P–G
4 FSR–
10 1F
G–R
(∗1)
G–B
(∗1)
G–R 8
FSR+
9
4 BJ2
O10 Occupant Classification ECU
(∗1)
6 BH1
(∗1)
W–B
5 BH1
P–G
W–B
(∗1)
1
O5 Occupant Classification ECU
(∗2)
1 BI2
(∗1)
G–R
G–R(∗2)
W–B
(∗2)
1
W–B
13 A
2
F21 Front Seat Inner Belt (Driver' s Side)
F22 Front Seat Inner Belt (Driver' s Side) W–B
2
A21(A), A23(C) Airbag Sensor Assembly Center
B–O
(∗2)
B–O
2 BI2
(∗1)
(∗2)
B–O
GR
1
1
W–B
2
4
W–B
W–B
18 1H
J1 Junction Connector IA
BA
F25 Front Seat Inner Belt (Front Passenger' s Side)
232 TOYOTA TACOMA (EM01D0U)
F24 Front Seat Inner Belt (Front Passenger' s Side)
System Outline When the driver has not fastened the seat belt while the ignition SW is ON, the driver seat belt warning light blinks, and a warning buzzer comes on. Also, in the front passenger seat, a sensor recognizes passenger, and when the passenger has not fastened the seat belt, the front passenger seat belt warning light blinks. : Parts Location Code
See Page
Code
See Page
Code
See Page
A21
A
44
F22
51 (*5)
J1
45
A23
C
44
F24
51 (*5)
O5
50 (*4)
C9
44
F25
50 (*4)
O10
51 (*5)
F21
50 (*4)
H7
45
: Junction Block and Wire Harness Connector Code 1F 1H 1J PF
See Page
Junction Block and Wire Harness (Connector Location)
28
Floor No.2 Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IL1
55
Instrument Panel Wire and Floor Wire (Right Kick Panel)
BH1
60 (*4)
Floor Wire and Seat No.1 Wire (Under the Front Passenger’s Seat)
BI2
61 (*5)
Floor No.2 Wire and Seat No.1 Wire (Under the Front Seat LH)
BJ2
61 (*5)
Floor Wire and Seat No.1 Wire (Under the Front Seat RH)
: Ground Points Code IA
See Page 54
Ground Points Location Left Kick Panel
56 (*1) BA
57 (*2)
Floor Seat Cross Member LH
58 (*3) * 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
233 TOYOTA TACOMA (EM01D0U)
Accessory Meter (BAT)
(IG)
(BAT)
(IG)
10A IG1 NO. 2
50A J/B
7. 5A ECU–B
7. 5A GAUGE
2
2
2
3 1J
L
2
R
6 1A
V–W
3
TAIL Relay
1
10A TAIL
13 PE
16 1C
2 PD
13 1K
5
V–W
R
V
5 1E
V–W
8 1E
LG
6 1E
G
4
1
3
19
1
21
ILL+
IG+
Speed Control
C9 Combination Meter
TEMP– 6
W
10 1E
(M/T)
GR
3 1E
3
R–Y
Y
13 1E
6
R–Y
W–B
2
(M/T)
5
(A/T)
TEMP+
E 2
S1
A28 Accessory Meter
2
14 1K
W(M/T)
36 IA1
Speed Sensor (Front LH, RH)
(A/T)
R–Y
W–B
Y
R–Y(M/T)
1 1C
GR
3 1C
W–B
W–B
8 1D 18 1H
SP1
L
18 A 10 B
4 A 9 B
3 A 40 B
FL+
FL–
FR+
P
R
12 A 18 B
G
A13 Ambient Temp. Sensor
2
17 A (w/ VSC) 39 B (w/o VSC) FR–
1
S 1(A), (B) Skid Control ECU with Actuator
2 W–B
BD
J1 Junction Connector
4
IA
234 TOYOTA TACOMA (EM01D0U)
(IG)
10A IG1
P
(M/T)
9 1J
7 PF
P
1 IG+
SE
SI
R–Y
W
3
(M/T)
2
9 IH1
(M/T)
V1 Vehicle Speed Sensor (Combination Meter)
(M/T)
4 PA
8 IH1
W(M/T) R–Y(M/T)
BR
B
20 A 15 B
6 A 16 B
5 A 44 B
RL+
RL–
O
Y
Speed Sensor (Rear)
19 A (w/ VSC) 45 B (w/o VSC)
RR+
RR–
S 1(A), (B) Skid Control ECU with Actuator
235 TOYOTA TACOMA (EM01D0U)
Accessory Meter : Parts Location Code
See Page
A13
Code C9
44
42 (2TR–FE)
J1
45
46 (*1)
A28
See Page
40 (1GR–FE)
S1
48 (*2)
A
Code S1
41 (1GR–FE)
See Page B
V1
43 (2TR–FE)
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1A
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1D
28
Frame Wire and Driver Side J/B (Lower Finish Panel)
1E
28
Roof Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
1C
1H 1J 1K PA PD PE PF
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
: Ground Points Code IA BD
See Page 54 56 (*1) 57 (*2)
* 1 : Double Cab
Ground Points Location Left Kick Panel Near the Rear Differential
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
236 TOYOTA TACOMA (EM01D0U)
41 (1GR–FE) 43 (2TR–FE) 41 (1GR–FE) 43 (2TR–FE)
Memo
237 TOYOTA TACOMA (EM01D0U)
Horn (BAT) ∗ 1 : Double Horn Type
10A HORN
2
W–G
2
W–G
2
1
2
3 HORN Relay
2
5
2
GR
G–R
2
10 1C
G–R
22 1I
GR (∗1)
8
1
H6 Horn (Low)
Horn SW
S8 Spiral Cable
HO
238 TOYOTA TACOMA (EM01D0U)
1
H5 Horn (High)
: Parts Location Code
See Page 41 (1GR–FE)
H5
43 (2TR–FE)
Code H6
See Page 41 (1GR–FE)
Code S8
See Page 45
43 (2TR–FE)
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
1C
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1I
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
239 TOYOTA TACOMA (EM01D0U)
Power Outlet for 115V (IG)
(BAT) 10A IG1 NO. 2
(ST)
7. 5A STA
100A AC SKT
2
B
2
LG
(M/T)
V
1 2D
(A/T)
14 1C
LG
2
V–W
6 2A
C14 Cruise Control Clutch SW
1 3 2B
V
V–W V–W
V
B–W B–W
2 A
OUT
SPD
V 8(A), V 9(B) Voltage Inverter 400W
P/T
AC1
1 A
5 A
2 BC2
1 BC2
2 IM1
7 IM1
3 IM1
3
11 A
PGND 1 B
1 BC1
R
L
G–B
L
1 ED1
L
P8 Power Point Socket
L
2 IA4
1
3
ACC1
ACC2
GND
W–B
5
W–B
3 BC2
BC
240 TOYOTA TACOMA (EM01D0U)
W–B
W–B
L
L
AC2
3 A
LG
3
REDR 7 A
LG
+B
R–W
3
2 B
L
9 A
R–W
L
NSW
G–B
R
6 A
CCCL
R
2
6 IM1
L
6
V
8 A
IND–
3
(M/T)
L–B
5
5 IM1
(A/T)
L–B
B 3
L
AC SKT Relay
1
2
G–B
M2 Main SW (Power Outlet AC115V)
IND+
IND
(M/T)
LG–B
1
LG LG
4 B
9 IM1
10 IM1 3
ELS2 12 A (1GR–FE) 20 B (2TR–FE)
(A/T)
9 PF
1 PF 5 DB
E 7(A), (B) Engine Control Module
18 PB
15 PE
10 DD
11 DA
E
(A/T)
L–B L–B
LG
14 DC
LG
(M/T)
40 IA1
(M/T)
LG 13 DC
(M/T)
2
(IG)
(BAT)
7. 5A GAUGE
(IG)
7. 5A ECU–B
10A IG1
2 9 1J
R
P
5 PE
16 1C
7 PF
2 PD
13 1K
4 PA
V–W
R
V–W
19
1
P
SE
R–Y
(M/T)
W
SI 3
(M/T)
V1 Vehicle Speed Sensor (Combination Meter) 3
W
R–Y
36 IA1
(M/T)
R–Y
IG+
(A/T)
6
W–B
2
1
2
(M/T)
C9 Combination Meter
Speed Control
21
(M/T)
V
V–W
2
(M/T)
3 1J
9 IH1
8 IH1
L
FL+
RL–
FR+ RR+
20 A 15 B
6 A 16 B
5 A 44 B
B
RL+
FL–
P
R
3 A 40 B
17 A (w/ VSC) 39 B (w/o VSC) FR– RR– 19 A (w/ VSC) 45 B (w/o VSC)
O
G
4 A 9 B
BR
SP1
18 A 10 B
Y
R–Y
S 1(A), (B) Skid Control ECU with Actuator
12 A 18 B
Speed Sensor (Rear)
W–B 2
(A/T)
Speed Sensor (Front LH, RH)
J1 Junction Connector IA
241 TOYOTA TACOMA (EM01D0U)
Power Outlet for 115V : Parts Location Code
See Page
C9
44
C14
44
E7
A
44
B
44
J1
45
M2
45
Code
See Page
P8 S1 V1
Code
47 (*1) 48 (*2) A
41 (1GR–FE)
B
43 (2TR–FE)
See Page
V8
A
V9
B
41 (1GR–FE) 43 (2TR–FE)
: Relay Blocks Code
See Page
Relay Blocks (Relay Block Location)
2
24
Engine Room R/B (Engine Compartment Left)
3
23
Engine Room R/B No.2 (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1C
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2A
24
Engine Room J/B (Engine Compartment Left)
2B
24
Engine Wire and Engine Room J/B (Engine Compartment Left)
2D
24
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
1J 1K
DA DB DC DD PA PB PD PE PF
: Connector Joining Wire Harness and Wire Harness Code ED1 IA1
See Page 52 (1GR–FE) 53 (2TR–FE)
Joining Wire Harness and Wire Harness (Connector Location) Frame No.2 Wire and Engine Room Main Wire (Front Fender Apron RH)
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
IM1
55
Floor No.3 Wire and Instrument Panel Wire (Under the Console Box)
IA4
BC1 BC2
56 (*1) 57 (*2)
Frame No.2 Wire and Floor No.3 Wire (Floor Seat Cross Member RH)
56 (*1) 57 (*2)
: Ground Points Code IA BC
See Page 54 56 (*1) 57 (*2)
* 1 : Double Cab
Ground Points Location Left Kick Panel Near the Voltage Inverter
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
242 TOYOTA TACOMA (EM01D0U)
47 (*1) 48 (*2) 47 (*1) 48 (*2)
Memo
243 TOYOTA TACOMA (EM01D0U)
Cigarette Lighter and Power Outlet for 12V (BAT)
(ACC) 15A PWR OUTLET
7. 5A ACC
3
1 ACC SKT Relay 2
B E 1
W–B
W–B
2
W–B
E 1
W–B
LG B
18 1H
W–B
2
C6 Cigarette Lighter
11 1K
P7 Power Point Socket
4 1K
LG
5
4
J1 Junction Connector
1
IA
244 TOYOTA TACOMA (EM01D0U)
: Parts Location Code
See Page
C6
Code
44
J1
See Page 45
Code P7
See Page 45
: Junction Block and Wire Harness Connector Code 1H 1K
See Page 29
Junction Block and Wire Harness (Connector Location) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
: Ground Points Code IA
See Page 54
Ground Points Location Left Kick Panel
245 TOYOTA TACOMA (EM01D0U)
Trailer Towing for Trailer Socket 7P Type (BAT)
(BAT)
(BAT) 30A TOWING TAIL
30A BATT CHG
2
50A J/B
2
2 2
2
L
2
L
G
5
1
3
2
3
1 2
1
3
2
5
2
G–B
2
GR
W–B
2
5
TAIL Relay
2
2
2
10A TAIL
2
TOWING TAIL Relay
BATT CHG Relay
2
19 1J
6 1A
L
L
B–Y
LG
19
7 1C
9 IB1
B 5(A) Body ECU
TRLY 18 IB1 V
TAIL
G–B
5 BE1
4 BE1
G
GR
13 A
1 TAIL
18 T
T12 Trailer Socket
33 2A
32 2A
IJ1
G
G
2 BATT
C11 Combination SW Light Control SW
27 2A
B
W–B
8
GND
STTR
STTL
B/UP
BRK
6
5
3
4
7
H
EL
OFF Tail Head
R
Y
L
2 BE1
7 BE1
8 BE1
W–B
L–R
L–O
R–W
W–B
BR 1 BE1
J 4(A), J 5(B) Junction Connector
W 3 BE1
W–B
W–B
12
6 A
5 B Y R–W L–O L–R W–B
EA
EB
W–B
8 1D
18 1H
BD
246 TOYOTA TACOMA (EM01D0U)
W–B
W–B
W–B
W–B
LG
IC
W–B
(BAT)
(IG) 30A TOWING BRK
(BAT)
10A IG1
(BAT)
30A TOWING
2
15A TRN–HAZ
2 2
2
B–Y
GR
P
2
L
B
G
1 1L
P
2 13 1H
L
T11 Turn Signal Flasher 1 IA4
LR 3
B 6
3 1L
2 1L
4 1L
5 DD
9 1C
18 1C
4 1B
13 DD
L
B–Y
LL 5
B–Y
P
1
L–Y
IG
2
L–B
P1 Park/Neutral Position SW B1 Back–Up Lamp SW Y
12 IH1
L–Y
1
9
3
8
+B
LTIN
RTIN
STIN
L
GR
L–B
6 IH1
R–W
13
J2 Junction Connector
R–W
1
4
2
R–W
B
5
L
G
1 ID2
4
RTOT
4
2
L–R
LTOT
6
W–B
8 ID2
GND
10 IB1
11 IB1
L–R
3
L–O
GND
L–O
BRK 1
T8 Towing Converter Relay
STOP
W–B
+B
Y
T7 Towing Brake Controller
TAIL
Y R–W L–O L–R W–B LG
LG
3 W–B
J1 Junction Connector
4
IA
247 TOYOTA TACOMA (EM01D0U)
Trailer Towing for Trailer Socket 7P Type ∗ 1 : w/ VSC ∗ 2 : w/o VSC (IG)
(BAT) 10A IG1 NO. 2
10A STOP
2 2
LG
14 1C
L 13 DC
4
3
STPO 16 A
L
STP2
(∗2)
45 A
L
(∗1)
L
(∗1)
L
2
(∗1)
L
2
(∗1)
G–B
L
(∗1)
L
1
S 1(A) Skid Control ECU with Actuator
2
2
S10 Stop Lamp SW
5
(∗1)
STOP LP CTRL Relay
1
2
(∗2)
G–W
2
2
2 1B
(∗1)
LG
6 1C 10 1I
G–W
12 DC
(∗1)
5 DC
LG
L
LG
248 TOYOTA TACOMA (EM01D0U)
: Parts Location Code
See Page
B1 B5
A
Code
See Page
Code
See Page
40 (1GR–FE)
J4
A
45
S10
45
42 (2TR–FE)
J5
B
45
T7
45
41 (1GR–FE)
T8
45
43 (2TR–FE)
T11
45
44
C11
44
J1
45
J2
45
P1 S1
A
41 (1GR–FE)
T12
43 (2TR–FE)
47 (*1) 48 (*2)
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code
See Page
Junction Block and Wire Harness (Connector Location)
1A 1B
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
28
Frame Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
1L
29
Relay Wire and Driver Side J/B (Lower Finish Panel)
2A
24
Engine Room J/B (Engine Compartment Left)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
1C 1D 1H 1I 1J
DC DD
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA4
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IB1
54
Frame Wire and Engine Room Main Wire (Left Kick Panel)
ID2
54
Frame Wire and Instrument Panel Wire (Left Kick Panel)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
IJ1
55
Instrument Panel Wire and Instrument Panel Wire (Right Kick Panel)
BE1
56 (*1)
Frame No.3 Wire and Frame Wire (Behind the Trailer Socket)
57 (*2)
: Ground Points Code EA EB
See Page 52 (1GR–FE) 53 (2TR–FE) 52 (1GR–FE) 53 (2TR–FE)
Ground Points Location Front Right Fender Front Left Fender
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
BD
56 (*1) 57 (*2)
* 1 : Double Cab
Near the Rear Differential * 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
249 TOYOTA TACOMA (EM01D0U)
Clock (ACC)
(BAT)
7. 5A ACC
(BAT)
50A J/B
7. 5A DOME
2
2
2
2
L
20 1J
W
6 1A
1
5
2
TAIL Relay
GR
4 1C
3
3 1K
W
10A TAIL
14
13
ACC
B 12 A Clock
G
W–B
W–B
20 B
G
ILL+ 11
W–B
E 7
1
J13 Junction Connector IE
IL1
W–B
11
BB
250 TOYOTA TACOMA (EM01D0U)
J 4(A), J 5(B) Junction Connector
H7 Hazard Warning Signal SW Assembly
G
7 1J
: Parts Location Code
See Page
H7 J4
Code
45 A
J5
45
See Page B
J13
Code
See Page
45 45
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1A 1C 1J 1K
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness Code IL1
See Page 55
Joining Wire Harness and Wire Harness (Connector Location) Instrument Panel Wire and Floor Wire (Right Kick Panel)
: Ground Points Code IE
See Page 54
Ground Points Location Right Kick Panel
56 (*1) BB
57 (*2)
Floor Seat Cross Member RH
58 (*3) * 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
251 TOYOTA TACOMA (EM01D0U)
Tire Pressure Warning System (IG) 10A IG1 NO. 2
D4 Data Link Connector 3
14 1C
LG
V–W TC 13
SIL 7
P–B
W
13 DC
2 DA
10 DA
9 DA
18 DB
W
V–W
12
4
3
SIL
SPD
TC
G
12 IE1
13 IE1
14 IE1
23 IA1
G
1
4
+5V
RDA
GND
1
SET
5
T15 Tire Pressure Warning SW (Reset)
GR
11
GR
10
L–W
CLSW
16
L–W
GND2
7
R–W
RDA
8
R–W
RF5V
W–B
IG
GND
IND 6
L
T14 Tire Pressure Monitor ECU
2
P–B
LG
4 DA
4
L
7
J5 Junction Connector
5
2
W–B
W–B
T16 Tire Pressure Monitor Receiver
EB
IJ1
IC
252 TOYOTA TACOMA (EM01D0U)
(IG)
(BAT)
(IG)
7. 5A GAUGE
7. 5A ECU–B
10A IG1
2 2
9 1J
R
P
V–W
(M/T)
3 1J
10 PF
16 1C
7 PF
2 PD
13 1K
1
V1 Vehicle Speed Sensor (Combination Meter)
Speed Control
Tire Pressure
IG+
SE
2
6
3
3
W
8 IH1
(M/T)
R–Y
(M/T)
R–Y
(A/T)
9 IH1
L
R–Y
(M/T)
W 23
SI
2
Reverse
C9 Combination Meter
1
(M/T)
R
21
P
V
19
(M/T)
V–W
4 PA
SP1
L
P
Y
BR
B
18 A 10 B
4 A 9 B
3 A 40 B
17 A 39 B
20 A 15 B
6 A 16 B
5 A 44 B
FL+
FL–
FR+
FR–
RL+
RL–
RR+
O
R
12 A 18 B
Speed Sensor (Rear)
G
R–Y
Speed Sensor (Front LH, RH)
(A/T)
L
W–B
36 IA1
19 A (w/ VSC) 45 B (w/o VSC) RR–
S 1(A), (B) Skid Control ECU with Actuator
2
J1 Junction Connector IA
253 TOYOTA TACOMA (EM01D0U)
Tire Pressure Warning System System Outline The air pressure sensor installed in the tire wheel detects the tire air pressure and transmits signals to the vehicle side receiver. When the detected tire air pressure is below a specified level, the warning light in the combination meter comes on to inform the driver. Press the tire pressure warning SW (Reset) for 3 seconds with the ignition SW at ON position after the tire pressure is adjusted to the specified value. It will lead the tire pressure monitor ECU to control and warn the pressure according to the specified value. Warnings when the tire pressure is low ∗ When the tire air pressure is below a specified level, the warning light in the combination meter comes on. : Parts Location Code
See Page
C9
44
D4
44
J1
45
J5 S1
A
Code
See Page A
S1
B
Code
43 (2TR–FE) 41 (1GR–FE)
T16
43 (2TR–FE)
45
T14
45
41 (1GR–FE)
T15
45
2
See Page 24
V1
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1C
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
34
Instrument Panel Wire and Instrument Panel J/B No.1 (Left Kick Panel)
DC
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
PA
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
1J 1K DA DB
PD PF
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IE1
54
Instrument Panel Wire and Floor No.2 Wire (Left Kick Panel)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
IJ1
55
Instrument Panel Wire and Instrument Panel Wire (Right Kick Panel)
: Ground Points Code EB
See Page 52 (1GR–FE) 53 (2TR–FE)
Ground Points Location Front Left Fender
IA
54
Left Kick Panel
IC
54
Instrument Panel Brace RH
* 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
48 (*2) 49 (*3)
: Relay Blocks Code
See Page 47 (*1)
* 5 : Bench Seat
254 TOYOTA TACOMA (EM01D0U)
41 (1GR–FE) 43 (2TR–FE)
Memo
255 TOYOTA TACOMA (EM01D0U)
Audio System for Separate Type Amplifier R 1(A), R 3(D) Radio Receiver Assembly (BAT)
(ACC)
30A RADIO NO. 2
(BAT) 10A RADIO NO. 1
7. 5A ACC
B
ACC
1 A
MUTE
11 A
TX– 15 A
GR
L–Y
2
6 1J
2 A
1 A
R–W
O
V
L–Y
6 IA4
J 4(A), J 5(B) Junction Connector
11 B
GR
W–L
2
W–L
37 IA1 IL3
R–W
IL3
12 A
1 A
8 A
7 A
S15 Speaker (Front Door LH)
GND
14 B
15 B
W
5 BA1
10 BA1
5 BB1
10 BB1
Y
R
IL3
R
10
Y
IL3
11 IE1
1 IE1
–
1
2
S16 Speaker (Front Door RH)
R
1
L
P
2
2
–
+
1
LG
–
3 +
V
+ 2
S19 Speaker (Tweeter LH)
4 –
RR–
TX–
L
V
3 +
RR+ 5 B
W
6 IK1
11
B
1 IK1
LG
11 IC1
P
12 IC1
4
RL– 13 B
TX+
B
IL3
L
8
LG
IL3
V
9
RL+ 4 B
B
LG
P
V IL3
P
17
FR– 18 B
MUTE
Y
FR+ 7 B
S20 Speaker (Tweeter RH)
FL– 17 B
L
FL+
ACC
BR
S23(A), S24(B) Stereo Component Amplifier
+B2
1
16
O
W–L 10 B
IL3
IL3
1
2
S17 Speaker (Rear Door LH)
W
W–L 1 B
6 B
7
GR
13
+B
IL3
V
W–L
GR
IL3
GR
12
18
5 A
2
2
2
TX+
7 A
1
2
S18 Speaker (Rear Door RH)
BB
256 TOYOTA TACOMA (EM01D0U)
15
IL3
4
SWG
4
5
EAU
AU2
4 A
R+
R–
WFL–
WFR+ 3 B
6 A SGND
WFR– 12 B
E 16 B
Seek–
Volume+
MODE
S8 Spiral Cable
5 A
L–
11 B
Y–B
W–R
6 AU1
Steering Pad SW
2 A
L+
S23(A), S24(B) Stereo Component Amplifier
3 A
WFL+
8 D
IL3
Seek+
2 B
SW2
6 D
LH
IL3
SW1 7 D
V–W
B 6
GND 20 A
W
IL3
B
14
G
R
IL3
SGND 10 A
BR
R– 18 A
W
R+ 8 A
G
L– 19 A
BR
L–R
L–B
G–W
Volume–
1
2
4
1
3
WF+
WF–
WF+
WF–
IL3
BR
S21 Speaker (Woofer) BR
BR
5
(Shielded)
L+ 9 A
R
(Shielded)
R 1(A), R 3(D) Radio Receiver Assembly
ID
257 TOYOTA TACOMA (EM01D0U)
Audio System for Separate Type Amplifier : Parts Location Code
See Page
Code
See Page
J4
A
45
S15
47 (*1)
Code
See Page
S20
47 (*1)
J5
B
45
S16
47 (*1)
R1
A
45
S17
47 (*1)
S23
A
47 (*1)
R3
D
45
S18
47 (*1)
S24
B
47 (*1)
45
S19
47 (*1)
S8
S21
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1J
See Page 29
Junction Block and Wire Harness (Connector Location) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness Code IA1
See Page
Joining Wire Harness and Wire Harness (Connector Location)
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IC1
54
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IE1
54
Instrument Panel Wire and Floor No.2 Wire (Left Kick Panel)
IK1
55
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
IL3
55
Instrument Panel Wire and Floor Wire (Right Kick Panel)
BA1
56 (*1)
Rear Door No.2 Wire and Floor No.2 Wire (Under the Left Center Pillar)
BB1
56 (*1)
Rear Door No.1 Wire and Floor Wire (Under the Right Center Pillar)
IA4
: Ground Points Code
See Page
Ground Points Location
ID
54
Instrument Panel Brace RH
BB
56 (*1)
Floor Seat Cross Member RH
* 1 : Double Cab
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
258 TOYOTA TACOMA (EM01D0U)
47 (*1)
Memo
259 TOYOTA TACOMA (EM01D0U)
Audio System for Built–in Type Amplifier (BAT) ∗ ∗ ∗ ∗ ∗
10A RADIO NO. 1
7. 5A ACC
6 1J
: w/ Door Lock Control : w/o Door Lock Control : Double Cab : Access Cab : w/ Audio SW in Steering Wheel
Volume–
Steering Pad SW
2
1 2 3 4 5
GR
L–Y
2
Volume+
LH
(ACC)
Seek–
Seek+
MODE
S8 Spiral Cable
37 IA1
EAU
AU2
6
4
5
FR+
LG 1 IK1 2 IK2
S15 Speaker (Front Door LH)
(∗5)
Y–B
(∗5)
W–R
RR–
1 C
3 C
GND 7 B
W
8
IL2
4
IL2
Y
R
5 BA1 4 BF1
10 BA1 5 BF1
5 BB1 4 BG1
W
B
BR
Y 1 IE1
R
B 11 IE1
L +
10 BB1 (∗3) 5 BG1 (∗4)
–
2
S16 Speaker (Front Door RH)
Y(∗4)
B(∗4) 1
2
S17 Speaker (Rear Door LH)
1
2
BR
1
W(∗3)
1
2
L(∗2)
V(∗1)
LG(∗2)
2
–
R(∗3)
– 1
RR+
6 C
3 +
LG
+ 2
S19 Speaker (Tweeter LH)
4 –
RL–
2 C
6 IK1 (∗1) 1 IK2 (∗2)
LG
L(∗2)
V(∗1)
P(∗1)
3 +
RL+
5 B
SW2
L
V 11 IC1 1 IC2
LG(∗2)
P 12 IC1 2 IC2
4
FR–
1 B
8 D
SWG
S20 Speaker (Tweeter RH)
FL– 6 B
6 D
SW1
L
FL+ 2 B
1
7 D
B
W
ACC
P(∗1)
R 1(B), R 2(C), R 3(D) Radio Receiver Assembly
4 B
R
3 B
(∗5)
V–W
L–Y
AU1
S18 Speaker (Rear Door RH)
ID
260 TOYOTA TACOMA (EM01D0U)
: Parts Location Code
See Page
Code
See Page
R1
B
45
R2
C
45
R3
D
45
49 (*3)
45
47 (*1)
S8
S16
S17
47 (*1) 48 (*2)
S15
Code
47 (*1)
S18
49 (*3)
See Page 47 (*1)
48 (*2)
S19
48 (*2) 49 (*3) 47 (*1)
48 (*2)
S20
47 (*1)
48 (*2) 49 (*3)
48 (*2)
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1J
See Page 29
Junction Block and Wire Harness (Connector Location) Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
: Connector Joining Wire Harness and Wire Harness Code IA1 IC1 IC2 IE1 IK1 IK2
See Page
Joining Wire Harness and Wire Harness (Connector Location)
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
54
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
54
Instrument Panel Wire and Floor No.2 Wire (Left Kick Panel)
55
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
IL2
55
Instrument Panel Wire and Floor Wire (Right Kick Panel)
BA1
56 (*1)
Rear Door No.2 Wire and Floor No.2 Wire (Under the Left Center Pillar)
BB1
56 (*1)
Rear Door No.1 Wire and Floor Wire (Under the Right Center Pillar)
BF1
57 (*2)
Rear Door No.2 Wire and Floor No.2 Wire (Under the Left Quarter Panel)
BG1
57 (*2)
Rear Door No.1 Wire and Floor Wire (Under the Right Quarter Panel)
: Ground Points Code ID
See Page 54
* 1 : Double Cab
Ground Points Location Instrument Panel Brace RH
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
261 TOYOTA TACOMA (EM01D0U)
8 IH1
262
TOYOTA TACOMA (EM01D0U) B–W
11 A 18 A 17 A
16 B
2 B
17 B
B–W
GR–B
2 B
7 PF
4 PA ODO/TRIP
9 A
1 B
Illumination
C 9(A), C10(B) Combination Meter
B–W
11 A
(∗2)
R–W
12 A
(∗2)
1 A
Tacho Control
Temp. Control
G–B
V–W
Back–Up Lamp SW
Unlock Warning SW
T14 Tire Pressure Monitor ECU
2
B–W
GR–B
6 A
GR–B
J 4(A), J 5(B) Junction Connector
R
Door Courtesy SW (Driver' s Side)
16 1C
(M/T)
G–Y
2
R
7. 5A ECU–B
Data Link Connector 3
9 IH1
R–Y
3 A
(A/T)
Speed Control
2
(M/T)
18 A
R–Y
7. 5A GAUGE
R–Y
2 21 A
W
3 1J
Skid Control ECU with Actuator
SE
(M/T)
Door
V
9 1J
G–W
P (M/T)
10A IG1
V
Battery SI
(IG)
A/C Amplifier
Engine Control Module
W
3
W
1 2C
(M/T)
5
P
3
(M/T)
W
R
R
(IG)
(M/T)
Body ECU
R–Y
2
(M/T)
V1 Vehicle Speed Sensor (Combination Meter)
B
HEAD Relay
Combination Meter R
R
(BAT)
3
SPD
2
10 PF
1 13 1K
1
IG+
7 A
9 B 10 B
Reverse
2
11 B
TOYOTA TACOMA (EM01D0U) 20 A 23 A
L
A27 Accessory Meter
2
3 10A TAIL
5
C 9(A), C10(B) Combination Meter 13 A
J 4(A) Junction Connector
3
Tire Pressure Monitor ECU
Tire Pressure
1
G
5 1E
BR–W
L
12 A
12 PC
Rheostat
33 A
LG
TAIL Relay
5 PE 6 1A
(∗1)
14 1K
LG
BRAKE
5 PD
V–W
E7 Engine Control Module
SI
(∗1)
Reverse
13 PE
B 2(B) Brake Fluid Level Warning SW
3
ABS
2 PD SPD
(∗1)
W–B
2 4 A
B–W
5 ID2
Reverse
8 A
O
Fuel Control
Reverse
6 IM1
V–W
8
Skid Control ECU with Actuator
10 A
SRS
V–W
V–W
V8 Voltage Inverter SPD
B–Y
Y–B
2 ID2
Y–B
Fuel
V–W
2
Airbag Sensor Assembly Center
O
19 A
O
Blink
Driver' s Seat Belt
V–W
SPD 9 A (4WD) 10 B (2WD)
F19 Fuel Suction Pump and Gage Assembly
Front Seat Inner Belt (Driver' s Side)
B–O
Buzzer
F12(A), F14(B) 4WD Control ECU R R
R R
(BAT)
50A J/B
2 G
7 1J
V–W 40 A
22 IA1
1 B
2 B
∗ 1 : w/o VSC ∗ 2 : 1GR–FE M/T
EB
263
E3 Engine Oil Pressure SW
1
3 IH1
Oil Pressure
4WD
4LO
Rear Diff. Lock
16 A 25 A 15 B 16 B 14 B 17 A
LG–B
R
BR–W
L–Y
BR
P
AUTO LSD
Slip
VSC TRAC
VSC OFF
DAC
39 A 24 A 35 A 36 A 38 A 37 A 13 B
264
TOYOTA TACOMA (EM01D0U) Skid Control ECU with Actuator
(∗7)
L–B
(w/ VSC)
L–W
(w/ VSC)
Y
(w/ VSC)
R–W
(∗8)
2
LG–R
2
CRUISE
DIM Relay
LG
2
(∗5)
Y–B
1
A/T OIL TEMP
Malfunction Indicator Lamp
Charge
GR
2
Engine Control Module
4WD Control ECU
4WD Control ECU
LG–B
Generator
MAINT REQD
(∗3)
W
R
R
Combination Meter R W(∗3)
R R–B
2
3 4
5
2 R–B
C 9(A), C10(B) Combination Meter
∗ ∗ ∗ ∗ ∗ ∗
W(∗3) R–B
2
1
L–W
R–W
G–B
Park/Neutral Position SW
Shift Lock Control ECU Y(∗6)
B(∗5)
Park/Neutral Position SW R–Y(∗6)
(∗5)
G–Y
W
32 A
8 B
7 B
6 B
5 B
4 B
3 B
2 B
1 B
(∗5)
P
R
N
D
4(∗5) 3(∗6)
3(∗5) 2(∗6)
2(∗5) L(∗6)
Head (∗3) Tail (∗4)
L
High Beam
Turn RH
(∗3)
2 A
C 9(A), C10(B) Combination Meter
W–B
Turn LH
(∗3)
(∗3)
(∗4)
(∗3)
12 B
(∗3)
R–B
35 IA1
R–B
P 20 IA1
Y(∗5)
19 2A
G–Y(∗6)
R–B
2 2A
(∗3)
P
22 2A
P
L–Y
1 2A
(∗3)
Turn Signal Flasher
2
2
V(∗5)
2
2
L–B
Shift Lock Control ECU
10A HEAD (LO RH)
10A HEAD (HI LH)
27 A
: USA : Canada : 1GR–FE A/T : 2TR–FE A/T : w/ Downhill Assist Control : w/ Auto LSD
2
1
28 A
3 4 5 6 7 8
2
J1 Junction Connector IA
265 TOYOTA TACOMA (EM01D0U)
Combination Meter : Parts Location Code
See Page
A27
Code
44
J4 J5
F12
A
44
42 (2TR–FE)
F14
B
44
B
C9
A
44
C10
B
44
Code
44
40 (1GR–FE)
B2
F19 J1
45
B
45
V1
48 (*2) 49 (*3)
42 (2TR–FE)
See Page A
T14
46 (*1)
40 (1GR–FE)
E3
See Page
E7
V8
45
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1A 1C 1E 1J 1K
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
28
Roof Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2A
24
Engine Room J/B (Engine Compartment Left)
2C
24
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
PA
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
PC PD PE PF
: Connector Joining Wire Harness and Wire Harness Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IA1
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
ID2
54
Frame Wire and Instrument Panel Wire (Left Kick Panel)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
IM1
55
Floor No.3 Wire and Instrument Panel Wire (Under the Console Box)
: Ground Points Code EB IA
See Page 52 (1GR–FE) 53 (2TR–FE) 54
* 1 : Double Cab
Ground Points Location Front Left Fender Left Kick Panel
* 2 : Access Cab
* 3 : Regular Cab
* 4 : Separate Seat
* 5 : Bench Seat
266 TOYOTA TACOMA (EM01D0U)
45 41 (1GR–FE) 43 (2TR–FE) 47 (*1) 48 (*2)
Memo
267 TOYOTA TACOMA (EM01D0U)
Air Conditioning LG (IG)
10A IG1
(BAT)
(IG) 10A IG1 NO. 2
50A HEATER
2 2
LG
LG
P
A15(A), A16(B) A/C Control Assembly
14 1C
R
9 1J
OFF 11 DC
LO
Blower SW
13 DC
M1 M2
2 DD
R
LG
HI
2
2 M2
3 A
4 A
L–B
4
HI
2 A
W–L
1
Y
LO
5
M1 7 A
3
2
2
2
G–Y
HEATER Relay
2
Y
Y
B–Y
B–Y
W–B
34 IA1
3
4
8 IA4
33 2A
B4 Blower Resistor
29 2A
B–Y
M2
HI 2
2
W–B
M
M1
LO 1
B3 Blower Motor
1
W–L
W–L
W–L
W–B
W–L B–Y
EA
W–B
W–B
P
EB
268 TOYOTA TACOMA (EM01D0U)
LG
LG L–W V
V
L–W
G–B
G–B
GR
4 B
2 B
12 B ACID
1 B MR/F
A/C
A/C SW
A15(A), A16(B) A/C Control Assembly
F/R SW
F/R
A/C
REC
IG+
MSET
10 B
5 B
LG–B
W–B
W–B
AMSW 6 B
P
GND 9 B
R–W
BGND 6 A
1
2
4
GND
A/M
IG
P
P
W–B
W–B
LG–B 1 PE
14 PF 8 PE
7 PF
9 PE
P
P
Amplifier
P
M
W–B
D2 Damper Servo Motor (Air Mix)
W–B
P W–B
W–B
W–B
W–B
W–B
B–Y
B–Y
P
3
4
1 2
J13 Junction Connector
W–B
W–B
IE
269 TOYOTA TACOMA (EM01D0U)
Air Conditioning LG
LG L–W V
E2 Engine Coolant Temp. Sensor
1
G–B GR
2
28 A
THW
E2
ACT
V–W
11
10
V
L–W
L
G–W
IJ1
G–B
3
GR
II1
P–B
G–W
24 D
18
17
15
16
7
9
ACID
FRS 1
AC1
25 D
5
MR/F
REC 2
L
E 4(A), E 7(D) Engine Control Module
21 A (∗1) 32 A (∗2)
A/C
D1 Damper Servo Motor (Air Inlet)
BR
Y–B
M
RDEF
ACT
AC1
REC
FRS
GND
VER1
PRS
23
1
14
5
12
3
(∗1)
W–B
32 IA1
W–B
33 IA1
G–Y
LG–B
O
BLRH
2
LG
IG+
G–Y
DEF
12
P
A14 A/C Amplifier
P
4
3
1 O
2 IG
MODE
DEF
GND 2 2
13
M 1
J14 Junction Connector
2 P
W–B
1
B–Y
W–B
P5 Pressure SW
2
10A A/C
D3 Damper Servo Motor (Air Vent Mode)
Amplifier
W–B
B–Y
W–B
EA
270 TOYOTA TACOMA (EM01D0U)
LG (BAT)
(IG)
LG
7. 5A ECU–B
LG
7. 5A GAUGE
2 2
5 MG CLT Relay
1
R
2
3 1J
2
2
R
∗ 1 : 1GR–FE ∗ 2 : 2TR–FE
9 1K
16 1C
3 2
2
G
V
V
V
3 EA1
R
24
31 IA1
G
R
13 1K
1
21
21 B
MGC
A14 A/C Amplifier Tacho Control
Temp. Control
C9 Combination Meter
6
R–W
LOCK
B
TE 4
W
SG 3
B–W
7
9
2
11 A
17 B
2 B
GR–B
1
A/C Lock Sensor
2
W–B
GR–B
18 A
J 4(A), J 5(B) Junction Connector
B–W V 1
B–W
R–W 2
A1 A/C Compressor
A17 A/C Thermistor No. 1
10 IH1
A/C Magnetic Clutch
IGN 22
GR–B
TW 19
W
W
3 PE
4 PE
10 PB
W–B
W
3
2
J1 Junction Connector IA
271 TOYOTA TACOMA (EM01D0U)
Air Conditioning System Outline The A/C amplifier receives various signals, I.E., the engine RPM from the engine control module and coolant temperature from the engine control module, etc. When the engine is started and the A/C SW (A/C control assembly) is on, a signal is input to the A/C amplifier. As a result, current flows from IG1 NO.2 fuse to TERMINAL 2 of the MG CLT relay to TERMINAL 1 to TERMINAL MGC of the A/C amplifier to GROUND, turning the MG CLT relay on, so that the magnetic clutch is on and the A/C compressor operates. If the integration control and panel detects the following conditions, it stops the air conditioning: ∗ Evaporator outlet air temperature is too low. ∗ There is a marked difference between the compressor speed and the engine speed. ∗ The refrigerant pressure is abnormally high or abnormally low. ∗ The engine speed is too low. ∗ Rapid acceleration occurs. : Parts Location Code
See Page
A1 A14
Code
See Page
Code
See Page
40 (1GR–FE)
C9
44
42 (2TR–FE)
D1
44
J4
A
45
44
D2
44
J5
B
45
D3
44
J13
45
40 (1GR–FE)
J14
45
A15
A
44
A16
B
44
E2
A17
44
B3
44
E4
A
44
B4
44
E7
D
44
J1
42 (2TR–FE)
45
P5
: Relay Blocks Code 2
See Page 24
Relay Blocks (Relay Block Location) Engine Room R/B (Engine Compartment Left)
: Junction Block and Wire Harness Connector Code 1C 1J 1K 2A DC DD PB PE PF
See Page
Junction Block and Wire Harness (Connector Location)
28
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
29
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
24
Engine Room J/B (Engine Compartment Left)
34
Engine Room Main Wire and Instrument Panel J/B No.1 (Left Kick Panel)
36
Engine Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
36
Instrument Panel Wire and Instrument Panel J/B No.2 (Right Side of Glove Box)
: Connector Joining Wire Harness and Wire Harness Code EA1 IA1
See Page 52 (1GR–FE) 53 (2TR–FE)
Joining Wire Harness and Wire Harness (Connector Location) Engine Wire and Engine Room Main Wire (Inside of Engine Room R/B)
54
Instrument Panel Wire and Engine Room Main Wire (Left Kick Panel)
IH1
55
Engine Wire and Instrument Panel Wire (Right Side of Glove Box)
II1
55
Instrument Panel Wire and Instrument Panel Wire (Instrument Panel Brace RH)
IJ1
55
Instrument Panel Wire and Instrument Panel Wire (Right Kick Panel)
IA4
272 TOYOTA TACOMA (EM01D0U)
41 (1GR–FE) 43 (2TR–FE)
: Ground Points Code EA EB
See Page 52 (1GR–FE) 53 (2TR–FE) 52 (1GR–FE) 53 (2TR–FE)
Ground Points Location Front Right Fender Front Left Fender
IA
54
Left Kick Panel
IE
54
Right Kick Panel
273 TOYOTA TACOMA (EM01D0U)