Wire Description
ComponentIdentifiers (CID¹) Module Identifier (MID²) Engine ControlSystem (MID No.036) CID
F u e lI n j e tco r S o l e n o i d# 1 F u e lI n j e tco r S o l e n o i d# 2
0003 0004 0005
F u e lI n j e tco r S o l e n o i d# 3 F u e lI n j e tco r S o l e n o i d# 4 F u e lI n j e tco r S o l e n o i d# 5
0006 0 0 41
F u e lI n j e tco r S o l e n o i d# 6 E C M 8V D CS u pp l y
0 0 91 0 0 94
T hor tl te S en s or Fue lP r e s us r eS e n sor
0 1 00 0110
O i l Per s su r e S e n s or E n g i n eC o o l a n t T e m p ear t u r eS e n s o r
Wire Number
Wire Color
101
Description
Wire Number
Wire Color
Power Circ uits
Component
0001 0002
Ba t (+)
G790
PK
Not Used
RD
Hd Lmp
G 79 1
BR
Not Used
YL
A u ot L ub e P u m pt o A u t oL u be P er s u s r eS w .
H 7 02
PU
Imp l e me n t C o n rt o lR e e v r isn gF a nS w N ( .O .)
1 06
W H
T li /t L i tf Po isit onS e ns o r s
H 70 3
Y L
I m p el me nt Co nt or lR e v er is ngF a nS w(N C. ).
110 1 12
RD
En gine ECM
H704
W ar ni ng Ho nr ( of w r a r d) A u ot L u b eP u mp ot A u t oL u be P r e s u er S w.
H 7 17
BR
Imp l e me n t C o n rt o lP iol t P er s s S ol
RD
F u el P rm i in g P u mp t oM a h c i n eI net r af c e
H 7 18
GY
Imp l e me n t C o n rt o lT it lC y P l o istoi n
G N
S up p l e me n t a l St Ste e r ni g
1 3 8
G N
H 71 4
H 7 4 6
P K
Auto Reverseing Fan Solenoid
M ai nP ow e r Rl y O u pt ut
R D GN
1 3 6
H 71 3
PK
P U
1 14 124 129
O R
Y L
I m p el me nt Co nt or lL fi P t or po tr oi na lS ol I m p el me nt Co nt or l L o w e r P r op or it on al So l
V a r ai b l eS p e e d Fa nS o l e n o i d
A uto Lu b e Pu m p To PCS
H 7 4 7
B R
R D
B ea o c n/ He at ed M ri or sr
H 79 5
P K
0 1 68 0172
E l ec tirc al P o we r S up p l y I n t aek M a n i f o ld AirTempe r a t uer S e n s o r
1 47
RD
E CA P / C e nt er D as h nI di ca o t r Pa ne l
J 76 4
BR
T ar ns mi s oi n Sw ti ch S / en so r Re u t rn # 1
1 50
O R
I mp el m e nt T/ ar ns m i s oi n/ En gi ne E C M
K 73 7
B R
N o t Us ed
0174 0 1 90
F u e lT e m p e r a t u r eS e n s o r E n gi n e S pe e d S e n s or
174
RD
Unswitched Bus P ower
K 73 8
GN
Not U sed
0 2 53 0 2 61
P e sr o na lti y M o d uel E n gi n e S pe e d S e n s or
175
RD
Hood Actuator
K 73 9
BU
Not Used
H o dA tc u a ot r
N 7 0 7
P U
Fu e l D ffi e r e n ita l P er su er ( R e ut nr )
0 2 62 0267 0268
5 V ot lS e n os r S u p l y E n g i n eS h u t d o w nS w i t h c C h e c k Por g r a m m a b l eP a r a m e ters
GroundCircuits
R 7 46
PK
Atm o s ph e er i c Pr e s uer S e ns o r G ( r ou n d)
200
BK
Main Chassis
R747
GY
2 01
B K
O pe ar ot r M o ni ot r R e ut nr
T 7 2 5
W H
F u e lD fief er nt ai lP er s u r eS gi na l
0274 0275
A t m op s h e r i c Per s s uer S e n s o r RightTu r b o nI l e t P r e s u r eS e n s o r
202
BK
X msn Ctrl
Y7 9 4
OR
Expa nded Can Data Link +
229
BK
E ngine E CM
Y 7 95
GN
Expa nded C an D ata L i nk -
0 2 83 0291
F it le r Re srti ct L a m p E n g i n eC o o lni g F a n Sole noid
261
BK
B arke Oil Pressure Sw.
838
YL
Belly Guard Actuator
C216
BK
0 2 96 0342
Tra n s mi s iso nE CM C a mh s a f t P o st i o nS e n s o r
0 5 96 1639 1785 2 4 17
1 41
1 9
Boost Pressure Se n sor Signal
839
BU
B el ly G uard Actuator
A 89 3
OR
F ue lP ri mi ng S w.
W H
S at tr er Re al y ot S at tr er Mo ot r
G 82 8
W H
E ng ni e+ 5V S e n o s r S u pp yl
Imp l e me n t C o n rt o l M a c hni e S e c uirt y S y set m
3 06
GN
Sa t rt er R el ay C oi l o t T ra ns mi ss oi n Co nt ro l
G 82 9
GN
E ng ni e S e n so r Gr ou nd
3 0 8
Y L
M a i n Po w e rRe al yCo l i
G 8 3 3
P K
Fu e l T emp e r a t u r e Se n so r( G r o u n d )
I n t aek M a n iof l d P r e s u r e S e nsor Sta rtAidS o l en odi
3 21
B R
B ac u k pA al m r L a m pT ar ve A l al m r
G 85 0
B U
I n l et A ri He at e r
3 2
G Y
W a r n i n g H o nr F( o r w a dr )
G 8 5 6
WH
Ti m i n g C/ a . l Pr o b e( + )
326
PU
K ey Sw C '' T erm.
YL
Timing/Cal. P robe (-)
Failure Mode Identifiers (FMI)¹ F MI No No .
F ai u l e r De sc ri pt oi n D a t av a l i d b u t a b o v en o r m aol p e r ai to n a l ar n g e .
3 97 3 98
O R B U
A 3 00
GN
A 3 01
WH
A 3 0 7
G Y
X 3 37
WH
H oo dA tc ua ot r M o ot r L( ow e r ) H oo dA tc ua ot r M o ot r R ( a i se ) Lo w er Hood Raise Hood T h r o t l t eP o si i t o n Not Used MonitoringCircuits
G 85 7 J 80 7 J 80 8 J8 0 9 J 8 13
B K B K BK BK
P or po tr oi na R l et u r n( 1- 3) P or po tr oi na R l et u r n( 4/ R e v) Proportional Return (Forward) Implement Proportional Return
J 8 1 4
B K
Im p l e m e n P t or p o troi n a R l e tu nr
J8 1 5
BK
RideC ontrolS olenoids ProportionalR eturn
J 8 43
BK
T ubr o I nl e t Pr e s u er S e ns o r G ( r ou n d)
4 03
G N
A tl e r na ot r( R) Te m r .
J 84 4
G Y
T u r bo I nl et Pr es u s er S en o s r +( B at et yr )
4 16
O R
S up pl em e n at S l et er ni gS w
T 8 5 8
G Y
F u e lI nj ec ot rS ol en oi d# 1/ 2C om m o n
G Y
D a t av a l i d b u t b e l o wn o r m aol p e r ai to n a l ar n g e .
4 1 7
2
D a t ae r r a tci , i n t em r itte n t , o r i n c orre c t .
4 19
3
Volta ge ab o v en o r m a o l r s h o ret d hgi h .
4 2 6
P ir m a yr St e ir n gS w
T8 59
Y L
O pr Mo nP ar ki ng B ar e k
T 8 6 0
B R
O pr Mo nP o w e r Tr a i nO i Fl l iet r
430
BU
O pr M o n Ai r F il ter
Curre n t b e l o wn o r m a l orope n icr c ut i.
432
PK
O p r Mon B rake Press. o( il)
944
OR
Cat Data L i nk +
6
Curre n t a b o v en o r m a l orgrou n d e dc i r c u it.
439
YL
La mp nIdicator
9 45
BR
Cat Data Link -
7
Mecha n i c a sl y set m n o t r e s p o n d i n gp r o p elry .
976
OR
Ride C ont Solenoid 1
8
Abnorm a l rfe q u e n c y , p u le s w i d t h , o r p eiro d .
9 8 7
WH
Th ri dF u n tcoi nD vie tre rS o l
9
A bn or ma l u p d at e.
4
Volta ge be l o wn o r m a o l r s h o ret d l o w.
5
442 4 4 3
Hyd System T e m p G age
Y L
P owe rTr a i nTe m p G a g e
PK
Fuel Level Gage
A b no r m a l r at e o f h c a ng e .
450
YL
Tach Sender (+)
Failu r e m o d en o t i d e ni tf i a bel .
4 53
P K
S up pl em e n at S l et er ni gF a u tl L a m p
12
Bad d e vci e o r o c m po n en t .
13 14 15 16
447
GY
10 11
484
YL
O u t of c ailb ar toi n .
E 45 5
P a ar m e t e r af iul r es .
F 42 1
YL
G 47 9
WH
B R
99 4
GY
Oil Pr e ssure Sensor (Signal)
995
BU
Coola n t T emperatu er Sensor S ( ginal)
A 95 8
W H
P ar kB ar ke S ol
Pr m i ary Steering L amp
A 9 82 C 96 7 C 99 1
BR
E n g i ne T h rottle C ont
B U
I n t ak eM an fi o l d A i r e T mp er at u r e S e ns or (S gi na )l
PK
F ue lP re ss ur eS en so r S ( gi na )l
G 48 5
B U
O pr Mo nF or nt Br ak eT em p e ra ut er
E 90 1
G 48 6
G N
O pr Mo nR ea r B r ak eT e m pe ar ut er AccessoryCircuits
E 90 6
O R
T ar ns Ou pt ut Sp dQ +
E 90 7
GY
T ar n sO ut pu t Sp dQ -
19
Con d i ito nn o t m et.
20 P a ar m e t e r af iul r es . ¹The FMIisa diagnosticcode thatindicateswhattype offailure hasoccurred.
P relube In Indica tor
506
PU
Washer - rFont
507
WH
Washer - R e ar
5 13
OR
AC / P er ss ur e Sw . ot A C/ Cul ct h S o el no di
B R
A u x Li tf Pr o p o r ito n al So l
P K
R a c kb ac kP or po tr oi na lS ol
E 92 2
GN
DumpP ro roportiona So S l o l en o i d
E 963
BK
Crank Speed/Timin g((-)
E 96 4
WH
C ar n kS pe ed T/ m i ni (g + )
OR YL GY
S top L amp Turn Lamp - L e ft TurnL amp- Ri Right
Condition Hig h F u el P r e ssu re
E172
H i g hA i r F i l t e r R e s t rci t i o n H i g hE x h a utsT e m p e r a ture Use r D e ifn edS h u t d own
E9 6 5 E 9 66 K 9 27
BU YL BU PK
Trans O il Temp S e n s or
N 9 3 9
G N
Ri d eC o n rt o lS o l e n o i d2
T ai /l po si it on L a m p - L ef t R ( oa d Pk g) W / di h t
P 94 5
OR
A nt i Dr fi t S o -l S it ck
Head La Lamp Lo Low
P9 4 6
BR
Anti Dr Drift Sol- B o om
P 9 76
BR
Q uci k C o u pel r S w T o L ow P er s su r eS o l
P 99 0
BR
S at rt R el ay C rt l( Re u t rn )
T 9 5 7
P U
F u e l nI ej tc or So el no di #1
S u p el me nt al S e t er ni gM ot or R el ay
7 28
B U
S up pl em e n at S l et er ni g C o nt S w
C 1- 5
A rc S up pr es so r - Se co nd ar y St ee ri ng
J 9-
A cr Su p er so r- St a r R t e l a y
D 1- 1, X 1- 1
I 1- 4
F 1- 5, Z- 1 5
E 1- 5 K 3-
S en so r - R e a rA xl eO li T em p.
H- 1 8 , TT- 1 8 F-7 , U-7
A -9
S e n o s r- Ti t l Po isi t o n
Machine Location F- 1 9 , W - 1 9
C 1- 0, W- 10 G -7 , U 7-
H- 2
Connector Location
E 2- 4, U- 2 4
B a tt e r ei s
L 1- 3
F 1- 3 ,Z 1- 3
S e n o s r- Tr a n m s sis oi n Oi l Te m p e r a t u r e
I 9-
D 1- 1 ,U ,U- 1
B ol kc As m .
L 1- 3
F 1- 3, Z- 1 3
S e n o s r- Tr a n m s sis oi nI n p u t Sp e d
I 9-
E 1- 0, U- 1 0
F 1- 5, Z 1- 5
S en so r- Tr an .s Ou pt ut Sp ee d( L e a di ng )
H 9-
E 1- 2, U 1- 2
Schematic Location
ConnectorNumber
Machine Location
B er ak e r - Al et nr at or
I 1- 4
CONN 1
C-17
B re ak er - B el yl G ua rdA c u t at or
K -1 4
F -1 5, Z 1- 5
S en so r - T r an s. O ut pu t Sp ee d( Tr ai il ng )
H 9-
E-1 2, U - 12
CONN 2
C-17
B er ak e r - Ho od A tc ua ot r
J 1- 4
F 1- 5, Z- 15
S en so r- Tu rb oI nl et Pr es u s er
G 1- 2
G 9- , X- 9
CONN 3
J- 1 6
Breaker -M -Main
J- 14
F-15 ,Z ,Z-15
Solenoid -A -A/C Clutch
A-13
G-6 ,U ,U-6
CONN 4
J- 1 6
B er a ke r- Ru n ni gL a m p
K 1- 4
F 1- 5, Z- 1 5
S o l e n o i d- Au xL fti Pr o p
H- 3
F- 1 9 ,W ,W- 1 9
CONN 5
B-1 5
Breaker -S -Start
I-14
F- 1 5 Z , - 15
Solenoid -A u x Lower Prop
I-3
F-19 ,W-19
C ON N6 T i m i ng C / a l P or be
D 1- 5
B er ak e r - Un sw t i h c ed B us (C ab )
J 1- 4
F 1- 5, Z- 15
S ol en oi d- Du mp P or p
I 3-
F 1- 9, W- 19
CONN 7
E-1 5
G-7 , U-7
Control -Engine
G- 1 4
F-7 ,U-7
Solenoid -Lift Anti-Drift
I-3
F-19 ,W-19
C ON N8 J u m pS at rt R ec pt ac el
L -1 2
G -1 3, Z 1- 3
Co n t or -l Ho o d Ra sie L/ o w e r
J 1- 3
F 1- 5, Z- 1 5
S o l e n o i d- Li tf Pr o p
I 3-
F- 1 9 ,W ,W- 1 9
CONN 9
A-1 0
F-11 , U-11
Motor -A -Autolube Pu P ump
B- 6
I-10 , T-10
Solenoid - Lo w er Prop
Motor -B -Belly Gu Guard
L-14
D-14 , X-14
Solenoid - On / Off Pilot
C 5-
F- 1 2 , S- 1 2
Mo ot r- Fr on W t a h s e r Mo ot r- Fu el Pr Pr m i ni gP ump
A 1- 3
Mo ot r- Ho od A tcu a t o r
G 1- 5
Motor -Re ar W asher
H 7- , U- 7 E 3- , Y- 3
C-5
M o t or - Se co nd ar yS et er ni g
F-12 , S-12
J 9-
D 1- 1, X- 11
S o l e n o i d- Re e v sri n g Fa n
CONN 10
G- 9
E-9 , X-9
CONN 11
K- 8
E -10 , X-10
L 2-
D 1- 7, V- 1 7
CON N12
C-7
E - 13 , S - 13
I 3-
F- 1 9 , W- 1 9
CONN 13
E 7- , U- 7
CONN 14 CONN 16
H-6
CONN 17
F- 6
I-12 , V- 12
CONN 18
I-4
G- 1 5 , X - 1 5
L- 3
G-18 , V-18
E 7- , U -7
S o l e n o i d s - C yl ni d e rHe a d ( 1- 6)
F- 17
G 7- , U- 7
J 9-
D 1- 1, X- 11
S ol en oi ds - Ri de C o n rt ol ( 1- 3)
G 3-
F 1- 9 ,W 1- 9
CONN 19
E - 1 , U- 11
CONN 20
L- 3
Switch - A/C Refrigerant
B- 1 3
G- 6 , U -6
CONN 21
K- 3
G- 1 8 , Z - 1 8
S w i ct h- Be l l yG u a dr A ct u a ot r1 2,
L 1- 3
G 1- 5, Z- 1 5
CONN 22
J-3
G-18 , T-18
F 7- , U- 7
S w i ct h- Br a k eO l iP er ss u r e
B 1- 3
E 7- , U- 7
CONN 23
H-3
F-17 , V-17
S wi ct h- Di ff er en i t al P er s ur e
B 1- 6
H 7- , U- 7
CONN 44
B- 6
C-16 ,X-16
S wi ct h- Di sc on ne tc
L 1- 2
G 1- 5, Z- 15
CONN 45
B- 6
I-10 ,T-10
S w i ct h- Fu el Pr m i ni gP u m p
A 1- 3
H 7- , U - 7
F-15 , Z-15
S en de r- T C/ T em p e ar ut er
E 9-
S en o s r -A m t os p h er ci P re s ur e
E 1- 5
G -6 , W- 6
S e n os r- Bo o st Pr e s us er
D- 15
F- 6, V- 6
S en so r - Ca m Sh af t Sp ee d T i mi ng
D 1- 5
C 1- 9 , W - 19
S ol en oi ds - T ar ns . C l ut ch
I -9
S wi ct h - G r ou nd L ev el S hu d t ow n
H -1 3
H 7- , U- 7
S wi ct h- Ho od A ct u a ot r
H 1- 3
F 1- 5, Z- 15
H - 7, U - 7
S wti c h- H y dr a ul i c Fi let r B yp a s P r es s u re
C-5
E - 13 , S - 1 3
L -3
D -4 , U 4-
S wi ct h- P ar kB ra ke P re ss ur e
D 5-
E -1 3, T 1- 3
S en o s r -F ue l Pr es u s er
B 1- 6
G 1- 1 , W- 11
S wi ct h - Pr m i ar y St e ir ng P re s u r e
K 7-
F 1- 4 , X- 14
S en so r - Fu el T em pe ra u t re
B -1 6
G -7 , U 7-
S wi ct h- S ec on da ry S et er ni gP re ss ur e
I 5-
G -6 , U 6-
S wi ct h- T ar n sF li e t r By pa ss
S en o s r -C oo al nt Te m p er at u r e
E 1- 5
S e ns o r - Cr a nk S h af t S pe e dT i m ing
C - 15
S en so r - Fr on t Ax el O li T em pe ra u t re
S en so r - Hy dr au il cO li T em pe ra ut re
I-12 , V- 12 I-12 , V- 12
G 6- , U- 6
E -1 0, X 1- 0
I-14 I 1- 6
H-6
F 7- U ,- 7
K -1 0 E 9-
D-10 , U-10
CONN 15
F 1- 9, W- 19
B-13
F 1- 5, Z- 1 5
R el ay - S ec on da ry S et e irng n I et rm ed ai e t
E-13 , S-13
I-6
I-9 , Y-9
I 3-
Solenoid - Va irable Sp Speed Fa Fan
J 1- 4
Re is ts o r - C A N
C-7
K-7
S ol en oi d- Ti tl An it D - irtf
K- 1 1
Relay - Start
F-7 ,U-7 F 7- , U - 7
F-19 , W-19
Motor -S -Starter
S e n d e r- Fu e lL e v e l
F-2 , Y-2
F-19 , W-1 9
B 1- 3
Solenoid - Start A id
F-2 , Y-2
I-3
S o l e n o i d- Qu cik Co u p el r S o l e n o i d -R a c kB a ck Pr Pr op
F-2 , U-2
H-3
Re al y- Ma ni R e l ay - Se co nd ar yS et er ni g
E-9 , X -9
F-2 , U-2
Fue l F itl e r R e srti ct i on Idle Ele v a t e dot I n c r e a s e B a tet r y V o l t a ge
E539
H i g h nI t a k eM a n iof l d A i r T e m p e r aut r e
K -7
F -1 4, X -1 4
C 5-
D 1- 3, S 1- 3
Volume 1: Chassis ©2006 Caterpillar AllRightsReserved
Title
7 5 1
G N
X m s nS h i tf So N lo 1 . Or 3
T9 58
Y L
Fu e l nI ej tc o r So el no di # 2
752
YL
Xmsn Shift Sol No. 2
T95 9
BR
Fuel In Injector Solen o id #3
7 5 4
B U
X m s nS h i tf So N lo 3 . Or 1
T9 60
B U
Fu e l nI ej tc o r So el no di # 4
7 5
O R
X m s nS h i tf So N lo 4 . Or 5
T9 61
G N
Fu e l n I ej tc o r So el no di #5
E 7 48
BK
A u ot R e e vre s F a n/ Sat r t Ai d S oel n oi dR eut r n
T96 2
WH
Fue l I nej cot r S ol e n o i d# 6
F 71 3
OR
T ur bo n I el t Pr e ss ur eS en so r (S gi na )l
X 91 8
PU
G ro un d L e ve l S h ut D ow n( N. O. )
F7 6 2
G Y
S at tr Ai dS o l e n o i d
X 9 1 9
WH
G or u n dL e ve S l h u D t o wn ( N . C . )
G 7 64
PK
X m sn C on t P ar k Br a ke L ev e r S wT o Gn d
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Harness And Wire Electrical Schematic Symbols
BB
BB
AA
AA
Z
Z
197-8820 (Denso HDB95A) E l e crti c S t a ri n t g M o t o:r E n gi n e C Co ontrol:
165-46 1 9 ( D e lo c 4 2MT)
Symbols OffMachine SwitchSpecification Part N o.
Y
Y
X
X
W
W
V
V
U
U
T
T
S
S
R
R
Q
Q
Function
Actuate
T
Deactuate
Contact Position
275 to 1750 kPa¹ NormallyOpen² (39.9 to 253.8 psi) 138 ±28 kPa 89 ±20 kPa 117-773 Hydra u l i c F i let r B y p a s s Per s s uer NormallyClosed (20 ±4 psi) (12.9 ±2.9 psi) A-B,Normally Open 8270 kPa MAX 6890 ±345 kPa 174-43 12 P a r k B r ae k P r e su sre (1200psi MAX) (1000 ±50 psi) A-C,NormallyClosed A-B,Normally Open 10700 kPa MAX 8960 ±537 kPa 175-32 44 B r a k eO i lP r e s u sre (1550psi MAX) (1300 ±79 psi) A-C,NormallyClosed 1200 kPa MAX 700 ±100 kPa A-BNormallyOpen 230-571 Second a r y S t e eirn g P r e s u r e A-C NormallyClosed NormallyClosed (174.0psi MAX) (102 ±14.5 psi) 110.3 ±13.8 kPa 69 kPa MIN 258-083 F u e l D i fefr e n tai l P r e s s u re NormallyClosed (16 ±2 psi) (10psi MIN) 1200 kPa MAX 700 ±100 kPa A-BNormallyOpen 3E-645 0 P r i m ayr S t e e r i n g P r e s s uer (174.0psi MAX) (102 ±14.5 psi) A-C NormallyClosed ¹With increasing pressure the closed condition can be maintained up to 2800 kpa (405 psi), with decreasing pressure the closed condition can be maintained down to 170 kpa (25psi). 114-533
P
P
O
O
N
N
M
M
A/C H ( i g h/ L o w ) P r e s u sre
Pressure Symbol
Temperature Symbol
Level Symbol
CircuitBreaker Symbol
Flow Symbol
SymbolsAndDefinitions Fuse -Acomponentin an electrical circuitthatwill open the circuitiftoo much currentflows through it. Switch(Normally Open):Aswitch Open): Aswitch thatwill close ata specifiedpoint(temp,press,etc.). The circle indicatesthatthe componenthasscrew terminalsand a wire can be disconnected fromit. Switch(Normally Closed):Aswitch Closed): Aswitch thatwill open ata specified point(temp,press,etc.). No circle indicatesthatthe wire cannotbe disconnected fromthe component. Ground(Wired): Thisindicatesthat the componentisconnected to a grounded wire.The grounded wire isfastened to the machine.
SENR4130 SENR3 581
L
L
Ground(Case): Thisindicatesthat the componentdoesnothave a wire connected to ground. Itisgrounded by being fastened to the machine. ReedSwitch: Aswitch whose contactsare controlled bya magne t.A magnetclosesthe t.A contactsofa normallyopen reed switch;itopensthe contactsof a normallyclosed reed switch.
RENR93 18
K
K
J
J
Component Description Soleno ids: Resistor:
1 3 8 2- 9 2 4
S o l e n oi d s:
1 4 5- 70 2 8 1 4 8- 23 5 0
S e n d e r: Sol e n oi d :
T /C Temperatur e Va r i a bl e Sp e e d F a n
10 0 0 5 .0 ± 0.3
S o l e n o i d: Sol e n oi d :
O n /Off Pilot Au to Reversing Fan
32.6 ± 1.6 32.6 ± 1.6
1 5 2- 67 6 1 1 5 2- 83 4 0 1 6 3- 08 7 2 1 6 8- 64 5 2
Sol e n oi d : Sol e n oi d :
2 1 6- 53 3 8
Soleno ids:
F E
D
D
C
C
B
B
A
A 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Dump Prop LiftProp
MAGNETIC LATCH SOLENOID-Amagneticl SOLENOID-Amagneticl atch solenoid isan electricalcomponentthatis activated byelectricityand held latched bya permanentmagnet.Ithastwo coils (latch and unlatch) thatmake electromagnetwhen currentflowsthrough them.Italso has an internal switch thatplaces the latch coil circuitopen atthe time the coil latches.
7.75 ±1.0
LowerProp RackbackProp
I
E
Solenoid: Asolenoid isan electricalcomponentthatisactivated byelectricity.It hasa Solenoid:Asolenoid coil thatmakesan electromagnetwhen currentflowsthrough it.The electromagnet can open orclose a valve ormove a piece of metal thatcan do work.
1.06 ±0 ±0.0 5 1 08 - 1 3 2
AuxLiftRaise Prop Aux LowerProp
H
F
Fuel n I jection C AN Data Link
Resistance (Ohms)¹
1 2 8- 79 9 1 1 3 4- 25 4 0
I
G
Relay (Magnetic Switch): Arelay is an electrical componentthat is activated by electricity. Ithas a coil thatmakes an electromagnetwhen currentflows through it.The electromagnetcan open orclose the switch partof the relay.
Resistor,Sender andSolenoid Specifications
H G
Sender: Acomponentthatis used with a temperature orpressure gauge.The sender Sender:Acomponentthatis measuresthe temperature orpressure. Itsresistance changes to give an indication to the gauge ofthe temperature orpressure.
T
Par t N o.
FormNumber 177-99 5 3 ( D e no s HDB80A)
Printed in U.S.A.
²Contactpostion atthe contacts ofthe harness connector.
RelatedElectrical Service Manuals Altern ator:
972H: A7D1-UP A7G1-UP A7J1 -UP
F -1 5 , -Z15
Hig hF u e lT e m p e ar t ur e
E441
966H: A6D1-UP A6 G1-UP A6 J1-UP
F-18 , X-18
L o wE n g i ne O i l P r es s u re E n gi n eO v e r s pe e d
E 3 90
966H and 972H Wheel Loader Electrical System
Cam Speed/Timing (+)
K 97 7
P ar /k a T l iD/ a h s L/ a mp
BR
GN
H-3
S en so r- O l iP re s ur e
On/O f f Pilot Solen o id( Return)
Head L amp H i
P U
7 27
Sensor -L -Lift Position
D 1- 7, V- 17
Cam Speed/Timing ( -)
PU
GN
619
S e n o s r- Li t f Cy i l n d e r He a d E nd P er su er
G-6 , U-6
L 2-
Trans nIput Spd +
E 9 2 0 E 92 1
Li t f Press Sen osr Li t f Position Sensor
606
S e n o s r- n I at e k Ma n i of dl Ai rTe m p
H 6- , U- 6
B- 1 3
Trans nIput Spd -
A C/ Sw To Re rfgi e r a n S t w AC / Cl ut h c To Th er mo ts at Sw
BU
605
Schematic Location
Component
E 4- ,T ,T 4-
A 1- 4
Arc Suppressor -A -A/C A cr Su pp er s o r - Qu ci kC ou pl er
A ux L ow er P or po rt oi na l So l
Y L GY
6 17
D- 17
Machine Location
A tel nr a t o r
T ar ns Ou pt ut Sp d-
W H
ControlCircuits
E194
BR WH YL
Schematic Location
Component A al m r -B -B ack u p
Trans O utput S pd +
5 2 1
6 1 4
E 2 65
G N
5 22
611
Event C Co ode
E 90 8 E 90 9 E 91 9
WH
C529
604
EventCodes Engine Control
E9 0 0
C530
LightingCircuits
E 3 63
Xmsn Shift S ol No . 6
Mod ule n o t r es p on dni g . S e ns o r u s p pyl f a u lt.
E 3 60
F u e lI nj ec ot rS ol en oi d# 5/ 6C om m o n X m s nS h fti So l N o .5 O Orr 4
WH
P a ar m e terno tava i l ab l e .
18
E 3 62
Fu e l I nj e ct o r So el no di # 3 / 4C o m mo n
P U
90 1
P a ar m e t e r af iul r es .
17
E 0 96
O R
9 0
H yd ar ul ci Oi F l li et r F ue lT em pe ra ut r eS en so r S ( ig n al )
WH
ComponentLocation
V a r ai b l eS p e e d Fa nS o l e n o i d E ng ni eD gi ti al S en so r R ( e t ur n)
3 04
¹The CID isa diagnosticcode thatindicateswhich circuitisfaulty.
1
Implement R etu rn BasicMachineCircuits
²The MID isa diagnosticcode thatindicateswhich electroniccontrol module diagnosed the fault.
0
RD
RENR6332-01 November2006
Description Control Circuits
RD
102 103
2 2 0 8- 2 1 4
S e n d e :r
2 3 7- 22 3 4
S ol e n o id
2 3 9- 11 3 4
Sol e n oi d:
A/C Compresso r Clutch Axle Oil Cooler C lutch Transmission Clutch F u e l Le ev l LeftAnti-Drift Ride Control (3) TiltAnti-Drift S tart Aid
¹At roomtemperature unlessotherwisenoted.
17.6±0.6 9.4 ± 5.0
Harness AndWire Symbols 1 2
33.8
1 2
Deutschconnector : Typical representation ofaDeutschconnector.Theplugcontainsall socketsandthereceptaclecontainsallpins.
PartNumberfor ConnectorPlug
C-C4 AG-C3 130-6795 130-6795
20.0
HarnessConnectorSerializa tionCode:The "C"stands for"Connector"and the numberindicateswhich connectorin the ha rness.(C1,C2,C3,.... .)
AG-C4 111-7898
L-C12 3E-5179
PartNumberFor ConnectorRecepticle
1
325-AG135 PK-14 Socket
Pin
Sure-Sealconnector:Typicalrepresentation ofaSure-Sealconnector.Theplugandreceptacle containbothpinsand sockets. HarnessIdentificationLetter(s): (A,B,C,.. .,AA,AB,AC,...)
Wire,Cable,orHarnessAssemblyIdentification: IncludesHarnessIdentificationLettersandHarness ConnectorSerializatio n Codes
8.7 ± 0.4 Empty:240 -250 F u l l : 2 8- 3 3
Receptacle
5A PinorSocket Number
SingleWire Connector
9X-1123
Fuse (5Amps) Component PartNumber
Plug Harnessidentificationcode: Thisexampleindicateswire 135 in harness"AG".
2 Ground Connection
200-L32 BK-14 CircuitIdentification Number
WireColor
WireGauge
1 L O V 1 e 0 - g a P 2 6 3 3 3 6 R N E R
ComponentIdentifiers (CID¹) Module Identifier (MID²) Caterpillar MonitoringSystem (MID No.030) CID
Component
0 0 96 0100
F u el L e e v l S en d er E n g i n eO i l P ressu re Se nsor
0110 0177 0 24 8
E n g i n eC o o l a n t T e m p ear t u r eS e n s o r Torque C o n v e retr O i l T e m p e rature Se nsor D at aL ni k
0 2 63 0 2 71 0 32 4
S e ns o r P o w e r Su p ply A ci to nA l ar m A ct oi nL am p
0600 0 8 19
Hydra u l i c O i lT e m p ear t u r eS e n s o r Dip s l ay D a at Lni k
0 8 21 0826 0830
Dip s l ay P o we r S u p l y T / CO i l T e m p e r autr e S e nsor B r a k eO i l T e m p e r autr e S e nsor
PayloadControl System (MID No.074) CID
Component
0 24 8
C AT D at aL ni k
0364 0 59 1
Head E nd LiftC ylinde r P r e s s uer S e n s o r P CS E EP RO M
0769 1 9 64
Rod En d L i f t C lyi n d e r P r e s s u r eS e n s o r L i tf P o istoi nS e n s o r
Electronic TransmissionControl System (MID No.081) CID 0 0 41 0168
Component 8 Vo l t D CS u pp l y E l e crti c a lS y set m V o l t a g e
0177 0 1 90
T r a nm s i s soi n O i l T e m p e r a t uer S e n s o r E n gin e S p eedSe n s or
0 2 62 0268 0 3 67
5 Vo l t D CS u pp l y Progra m m e dP a r a m e terFault R i deC o n rt o lS wit h c
0368 0 44 4 0562
T r a nm s i s soi n A u t oM / anual Sw itch Sa t rt R el ay E l e crto n i c M o n itorin g Syste m
0585 0 5 90 0 5 96
T r a nm s i s soi n O upt u t S p e e dS e n s o r 1 E n gin eC o nt r o lM o d uel Imp l e me n t Co nrto l
0 6 23 0627 0672
D i er ci to na S l with c Parkin g Bra ke P ressu re Sw . T r a nm s i s soi n I n p u t S p e e dS e n s o r
0673 0702
T r a nm s i s soi n O upt u t S p e e dS e n s o r 2 L e v e r S wt ic h( T r a n s m issi o nS h i f t i n gD/ i r e tci o n )
0737 0793 0794
L e f t B r ae k Ped a l P o ist i o nS e n s o r P r i m ayr S t e e r i n g P r es u r e S w itch Second a r y S t e eirn g P r e s s u r eS w i t h c
0795 0 9 67 1 3 26
Second a r y S t e eirn g R e l a y Mah c i ne A p pli ca toi n E C M Lo c at i o n Cod e
1400 1 4 01 1 4 02
R e a r A x l eO i lC o o l e r S oel n o i d Ree v r se S o l e n odi F ow r adr S o l e n odi
1 4 03 1 4 04
F o ur t h S p e e d Cul t h c T hri d S p e d Cul t h c
1 4 05 1 4 06 1521
S e co n d S pe e d Cul t h c F i sr t S p e e d Cul t h c P a r t -h Tr o t telA u t o s h itfS e l e c t o rSwitch
1 9 60 2129 2274
I g nitoi nK e y R e a d er R i d eC o n t r o l So l e n o i d( 1 ) T r a nm s i s soi n D i r etci o n S w itch #2
2347 2684
R i d eC o n t r o l So l e n o i d( 2 ) R i d eC o n t r o l So l e n o i d( 3 )
Electronic ImplementControl (MID No.082) CID
Component
0 0 41 0168
8 Vo l t D CS u pp l y E l e crti c a lS y set m V o l t a g e
0268 0296 0350
Progra m m e dP a r a m e terFault T r a nm s i s soi n C o n tor l L i f t L i nakg e P o s i toi n S e n s o r
0351 0352 0353
T i l t L i nakg e P o s i toi n S e n s o r L i f t L ee v r P o s i toi n S e n s o r T i l t L ee v r P o s i toi n S e n s o r
0 3 54 0 3 55 0 3 56
R asi eS oel n oid L o we r S oel n oid Dum p S o l en odi
0 3 57 0 3 58
R a kc b ac k S ole no i d P iol t P er s su rSe o l e n oid
0364 0 3 65 0487
L i f y C yi ln d e r H e a dE n d O i l Per s s uer S e n s o r K i ck o u tSetSw i t ch 3 r d L e v e r P o ist i o nS e n s o r
0490 0491 0492
Imple m e n t L o coku t S w i t h c 3rd F unctio n F ow r a r dS o l e n odi 3rd Fu n c t i o nR e a r w a rd Sole noid
0562 0590 0965
C a t epr i l l a r M o n itorin g Syste m E n g i n eE l e crto n i c C o n trol M odule A u t o dgi Dgi M o de Sw itch
0 9 67 1187
Mah c i ne A p pli ca toi n C o n tni u o u s F l o w R o ce krSwitch
1324 1 3 25 1 3 26
A u t o dgi O p e r ai o t n Mode S electSw itch A u ot dgi T rgi g er S w ict h E C M Lo c at i o n Cod e
1592 1639 1718
A u t o dgi K i c k o u t S e t S w i thc M a c hni e S e c u rt iy S y set m E C M F i n eM o d u l a t i o nS w i thc
2326 2328
L o w e r A ni t- D r ti fS o l e n o i dV a l v e D u m pA n t i - D riftSole n o i dV a l v e
ProductLink Radio (MID No.122) CID
Component
0168 0254
E l e crti c a lS y set m V o l t a g e E l e crto n i c C o n t r o lM o d uel
0 2 69 1250
S e ns o r P o w e r Su p ply R e m oet C o m m u n ia c t i o nM o d uel
1 2 51
A l et r na t or " R " Te r min al
Machine Security System (MID No.124) CID
Component
0168 0 24 8 0817
E l e crti c a lS y set m V o l t a g e D at aL ni k ECMInte r n a lB a c k u p Ba ttery
1391 1392
TheftDe terentOu t p u t D r ievr # 1 TheftDe terentOu t p u t D r ievr # 2
Wire Description Wire Wi e r C ol o r Number
De sc irp it on
Wire W ri eC ol or Number
PowerCircuits RD YL
Hd Lmp MSS /Product L ink
619 633
GN BU
Head Lamp Low Attach Lighting Ckt
105 1 0 6
RD W H
Key Sw Ti t lL/ f i P t o s tii o n Se n so sr
646 6 4 7
OR G N
Light Sw To Front Flood Relay L gi h t Sw To Re a r Fl o dR e l a y
108 110 112
BU RD PU
Air Se at Engine ECM Main Power R ly O utput
651 661 662
PK GN YL
Flood Lamp Rear Tachometer Lamp Speedometer Lamp
1 1 3 1 1 4
O R R D
O p r Mo nP a n e lV m i sB +S w i ch t e d Wa nr ni gH o r n( of wa r dr )
6 6 3 6 9 1
G Y G Y
1 15 1 18
P K GY
V olat ge C on e v tr er s/ Ra di o F or nt R / ea r Wi pe r/ Wa sh er
A 62 9
B U
120 1 2 1
RD R D
Voltag eConverter Memory B a ck Al a r mTo L a mp
720 7 2 7
P U G N
Xmsn Brake Sw S u p p l e me nta S l et e r ni gMo ot rRe al y
122 124
RD GN
Dome Lamps AC
728 751
BU GN
Suppleme ntal Steering Cont Sw Xmsn Sh ift Sol No. 1 Or 3
125 126
RD PK
Product Link ECM/Radio Xmsn Ctrl
752 754
YL BU
Xmsn Shift Sol No. 2 Xmsn Sh ift Sol No. 3 Or 1
127 130
OR RD
Front Cab lFood L amps Stop Lamps
1 31 1 3
G a g eL a m p s Wa nr ni gL gi h t sTo B er a ke r
A cr Su pp er s or - Fo w r ar d H o nr C on rt ol -C at er pi ll ar M on ti or ni gS ys et m
Machine Location
Schematic Location
Component
H- 1 2 ,V 1- 2
S w i ch t - A u ot Ma / n u a l Ge a r Se el tc
H 1- 2, V- 12 L 14 - , Y -14
Machine Location
D 4-
S w i ct h- Au ot di gK ci o k ut Se t
L 1- 4, Y- 1 4
C 1-
L 1- 4, Y- 14
Switch - Autodig Mode
D-3
I 7-
H 1- 3 ,X 1- 3
S w i ct h -A ut o d gi M o d e Se el ct
C 1-
L 1- 4 ,Y 1- 4
E -7
L-1 5 , Y 1- 5
S wi ct h- A ut od gi rTgi ge r
G -7
H -1 3, X -1 3
L-14 , Y-14
Connector Location
755 762
OR YL
Xmsn Sh fti Sol N o. 4Or 5 Bucket Positioner S ol Sw
F al sh er / Fr on /t R e ar Fl oo dR e l ay s L H / R H Da h sI n d ca i ot rP a n el s
E 70 1 E 7 0 7
P K G N
A ut oR di eC on rt ol Sw CM SD sp i al y+ v
C on rt ol - P ay ol ad C on rt ol S ys et m
YL B U
Rear CabF ood l L amps C o n ve tr er 12V o tl Sw t i h c edO u t
E708 E 73 5
PK P U
CMS D ispl ay C lock C M ST a ck S/ er vM rtO / do me et r S e el ct
C on rt ol - Tr an sm si is on Co nt or lS sy et m
SupplementalS eering t A u to L u b eP u mp To P C S
E746 G 7 4 6
GN W H
Downshift Sw( N.O.) X m s nC o n T t o r q u eL m i ti
C on e v tr er - Vo tl ag e( 10 A)
1 3 9 1 4 1
R D P K
L HTa li/ Cl e a ar n ce L a m p s B e a oc n/ He a te dMi rr o r s
G 7 5 0 G 7 5 5
B U G Y
X m s nC o n F t w d S w To G n d X m s nC o n R t e v S wTo G n d
D sp i al y- Gr o e n e e v dlA uto ul b e
1 42 1 47
B U R D
C o n ve tr er 12 Vo tl Sw t i h c ed O u t E C A P C / en et r D a sh I n d ci at o r P a n el
G 76 0 G 76 1
W H Y L
X m s nC on tS pe ed 2S wT oG nd X m s nC o nt Sp ee d 3 S w T oG nd
Flasher -24 V
E-15
H-12 , V-12
Switch - o Frward Horn 2
G-7
F us e- Bl oc k
B 1- 5
H 1- 2, V- 12
S w i ct h- Fr on tI nt e r mi tt e n tW pi er W / as he r
D 5-
L 1- 5, Y- 15
1 4 8 150
R D OR
V o l at ge Co n ve tr e r Me m o yr Bat (+)
G 7 6 2 G763
B R PU
X m s nC o n S t p e e d 4 S w To Gn d Xmsn C ont Neut Sw o T Gnd
F u se - Th e r m a C l u t Ou t
K 1- 5
H 1- 2, W- 1 2
S w i ch t - Ha a z dr L a m p
H- 3
I- 1 6 , W- 1 6
CONN 29
1 5 1 1 64
G N W H
A lx eO l i Co o l e r Cl u t hc H d y or C t lrW l t P o w e tr ar ni C rt l
G 7 6 4 G 76 6
P K G N
X m s nC o n P t a r kB ar e k Le e v rS wTo Gn d I m p C l on tS wT oG nd N . O.
Control - D immer
D-15
C on rt ol - I mp el me nt C on rt ol S ys et m
H-12 , V -12
Switch - Beacon
H -1 2, U 1- 2
S wi ct h- B ol we r Fa nS pe ed
Schematic Location
Machine Location
CONN 14
E-18
D-10 , U-10
S wi ct h- C at M on Sy sM od eS el ec t
C 6-
L -1 5 Y , -1 5
CONN 15
D-18
S w i ct h- Di mm e r
H 1-
G 1- 6, X- 16
CONN 16
C-18
F 7-
H 1- 3, X- 13
CONN 17
B-18
H 1- 3, X- 1 3
CONN 24
F-15
I- 1 5, W 1- 5
C ON N2 5 S e r vi ce M od eP ul g
E -1 5
H 1- 2, V 1- 2
H-13 , X-13
CONN 26
L -13
H-12 , W-12
CONN 27
H-12
H-12 , V-12
CONN 28
H-9
H-13 , X-13
K -1 5, Y 1- 5
H 1- 2, W- 12
K 1- 5
H 1- 2, W- 1 2
F 6-
Guage - Q u ad
I-16 , W -16 L -1 4, Y 1- 4
G -1 2 W , 1- 2 H 1- 2, W- 12
D 7-
F 1- 5, G- 16
D oi d e - Bl o w e r Mo ot r
G-3
J -1 1 L 1- 8
F -1 4
C on rt ol - Pr o d u ct L ni k( G a t ew ay )
D -6
S wi ct h- B uc ke /t Fo rk S el ec t
E -2
S w i ct h- Do wn h s fi t S w i ch t - Fi n e Mo d u al i t o n
L 1- 5,Y 1- 5
F 8-
S w i ch t- F o r w a drH or n
ConnectorNumber
L -1 5, Y 1- 5
I- 3
L-14 , Y -14
I-12 , V-12 I-12 , V-12 I-12 , V-12 H-12 , V-12
J-1
I-16 , W -16
Switch - H eated Mirror
E-2
G-9
H-13 , X-13
Indicator -Center Dash
K-1
I-16 , W-16
Switch -HID Lamp
J-3
I-16 W , -16
CONN 30
F-9
H-12 , V-12
I n d ca i ot r- Le tf Ha n d Pa n e l
K 1-
I 1- 6, W- 1 6
S w i ch t -HV A C S e el tc
D- 6
L 1- 5, Y- 1 5
CONN 31
D-8
L-15 , Y-15
K -1
I -1 6, W 1- 6
S wi ct h- H VA CT em pe ra ut re S el ec t
D 5-
L -1 5, Y 1- 5
Impl Cont S w To Gnd N.C. Xmsn Cont Speed 1 Sw To G n d X m s nC o n R t e mo et F wd Sw o T Gn d
I nd ci at or - R gi ht H a n dP an el
Hood Actuator 8 Vo t l Se n so rS u p p l +y
G788 H 7 0 2
YL P U
Xmsn Cont R emote Rev Sw To Gnd Im p l Co n t Re ev sr ni gF a n Sw (N O . ).
M ot o r - Bl en dD oo rA ct ua ot r
L 1- 5
Motor -Blower
L-16
H-12 W , -12
Switch -Neutral O verride
C-2
H 7 03 H708
YL OR
Imp l C o n t Re v e r sni gF a nS w ( NC. . ) Impl Cont Kickout Sw 1
I-1
H-17 W , -17
Switch -Quick Coupler
D-1
L-14 ,Y-14
BK
GroundCircuits Main C hassis
Motor -Front Wiper
200
CONN 37
I-3
I-16 , W-16
S w i ch t - Re a r Wi p e /r W a hs e r
E 4-
L 1- 4, Y- 1 4
2 0 1 202
B K BK
O p e ar ot rM o n toi rRe ut nr XmsnC trl
H 7 0 9 H710
B U PK
Im p lC o n K t ci ok u t Sw 2 ImplC ont Lift Lever P osition
CONN 38
I-3
I-16 , W-16
2 10 2 50
168 170 1 7 4
GN RD R D
Quick C oupler Transmission ECM Un w s i ct h e dB u s Po w e r
G767 G768 G 7 8 7
199 A 1 0 5
RD O R
H 1- 3, X- 13
C-7
M o to r- Re a r Wi p e r
S w i ct h- Im pl em e n tL oc o k ut
K-15 , Y -15
G 8-
Switch - Key Start
H 1- 2, W- 12
S w i ct h- L f i T t li tK ci o k ut Se t
CONN 34 CONN 35
L-14 ,Y-14
CON N36
K-11
G-12 ,W-12
Switch -Remote FNR
H-7
H-13 ,X-13
CONN 39
H-3
I-15 , W-15
H-12 , V -12
Switch - R eversing Fa n
D-1
L-14 , Y -14
CONN 40
F-3
I-16 , W-16
L 1- 4, Y- 14
C O N N4 1 S er vi e c To ol Co nn
C o n ve tr er Ou pt ut (2 4/ 1 2 V o tl ) P ay ol ad M on - Cu st o m er G n d P ay ol ad M on - S sy et mG nd CMS S ervice CMS Clear Im p l e m e n C t t lr B -
H718 H 7 2 2
GY G N
Impl Cont Tilt Cyl Position X m s nC o n L t B . ar e k P e d a P l o s tii o n Se n s
Relay -Rear Floodlamp
C-15
H-12 , V -12
R es si ot r A / C( 1)
L 1- 4
H 1- 2, W- 12
S w i ct h- Th ri dF u n ctoi nC on rt ol lFow
K 3-
I 1- 6, W- 16
Transmission Ctrl BImplement Return
H728 H729
GN WH
CCS Auto 3 CCS Auto 2
R e si tso rA C/ ( 2 )
L 1- 4
H 1- 2, W- 1 2
S w i ch t - Th ri d u F n c i t on Di ev tr e r
G 8-
H 1- 3 X , 1- 3
R es si ot r -B ol w e r M o ot r
K 1- 6
H 1- 2, W 1- 2
S w i ct h- T ar ns m i s oi nG ea r S e el tc or
I 3-
I 1- 5, W 1- 5
H 7 3 0 H 79 5
B R PK
CC SA u t o1 4T hr ot lt e S e n so r Co mm on
R es si ot r -C AN A
K 6-
I 1- 6, W- 16
S w i ct h- Tr an sm si is on Sh fiet r A s e s mb yl
BR B U
R el ay - Fo w r ar dC ab F ol od al mp
C 1- 5
R e l a y -F o r w a dr H o r n
C 1- 5
R el ay - H e ae t dM ri ro rs T m i er
D -1 5
S e n o s r- 3r dL e ve rP o si i t o n
H 1- 2, V- 12
H- 1 3 , X- 1 3
S w i ch t - Tu nr S gi n a l S wi ct h- V ar ai bl eS hi tf C on rt ol
H- 1 3 , X- 1 3
Ta h c S/ pe e d o me et r
G- 1 5 , V-15
Thermostat
J 76 4 P739
T ar ns mi ss oi nS wi ct h/ Se ns or R et ur n# 1 Axle Coole rClutch
S en so r - Le tf H a n dB ra ke P ed al S e n o s r- Li tf Le ev rP o si i t o n
G 7-
Horn Relay C oil To Sw B ac u k pA al m r La m p Tr av el Al ar m
Y794 Y 79 5
OR G N
Expanded Can Data Link + E p x an de dC an Da at Li nk -
Sensor -Th ottlle r Positio n
G-1
S en so r- Ti tl Le e v r P o isit on
G 7-
H 1- 3 X , 1- 3
GY PU
Warnin g H orn (forward) Key S w 'C' T erm.
818 819
B R GY
Serial Data ( ransmit) t Serial Data (receive)
A307
GY
Throttle P osition MonitoringCircuits
G848 G 85 0
GN B U
Led D rive r 2 I n l et Ai r H e at e r
403 4 1 0
J807 J 8 0 8
BK B K
Proportion R a l eturn (1-3) P or p o tir o n alR e tu nr ( 4 /R e v)
Opr Mon Master O p r Mo nFu e l P er ss .
J809 J 8 1 3
BK B K
Proportion a l Return (Forward) Im p l e me nt Pr o p o r ito n a l Re ut nr
S up pl em en at lS et er ni gS w P ir m a ry St e ir ng S w Opr Mon Parking Brake
J 81 4 J 81 5 J887
B K B K P U
I m p el m e nt P or po troi na lR e t ur n R di eC o n rt ol S ol en oi ds Pr op or it on alR et u r n Axle Coole rRelay
4 2 6 430
B R BU
O p r Mo n P o w e rTr a i nO i Fl l iet r Opr M on Air F ilter
T8 5 2 T853
G Y OR
A u to Di g M o d e Sw P . o s #1 Auto Dig Mode Sw. P os # 2
4 3 2 4 36
P K O R
O p r Mo nB ar ek P er ss (. o i )l O pr Mo n Po w e r rT ai n Oi l Fi tl er Ju m p er
T8 5 4 T 8 5 5
Y L B U
A u to Di gM o d eS w . Po s# 3 A ut o Di g Mo de S w. Po s# 4
439 4 4 2
YL G Y
Lamp Indicator Hy dS sy et mT e mp Ga g e
T856 T8 5 7
WH G N
Auto Dig Mode Select Sw. Po s#1 A u to D i gM o d eS e l e c S t w . Po s# 2
4 4 3 447
Y L PK
P o we rT ar ni T e m p Ga g e Fuel L evel Gage
T8 5 8 T859
G Y WH
450 4 53
YL P K
Tach S ender +( ) S up pl em en at l St e ir ng F au tl La m p
T860 T 8 6 1
OR Y L
Auto Dig T rigger S w. N.O.) ( A ut o Di g Tr gi ge rS w. (N C. ).
4 8 4 C413
Y L YL
P ir m a yr Ste e r ni gL a mp CMS Display D ata
T8 6 2 T863
B U P U
A u to Di gA u t oT ir g e r n I d i ac ot r Auto Dig Record Mode Indicator
C 4 1 4 E416
B U PU
CM SD si p l a y Lo a d Lift C yl Press S ensor
T8 6 4 T866
B R YL
A u to Di gO p e ar ot rT ir g e r n I d i a c ot r Dump Detent
E455 G479
BR WH
Hydraulic Oil Filter Prelube Indicator
T869 T870
WH B R
Fine Modu ation l Sw 1 Fine Modu ation l Sw 2
G 4 8 0 G 48 5
G N B U
Fu e lL e v e lL o wI n d ca i ot r O pr Mo nF or nt Br ak eT em pe ar ut er
9 0 9 01
P U W H
X m s nS h i tf So No l 5 . O r4 X m s nS hi tf So lN o . 6
G 48 6
G N
O pr Mo nR ea r B r ak eT e m pe ar ut er AccessoryCircuits
9 10 9 4
Y L O R
X m s nN eu it e z r O v e r ir deI n di ca ot r Ca D t a ta L ni k+
945 961
H 2-
966H: A6D1-UP A6G1-UP A6J1-UP
F 2-
I 1- 6, W- 16
I- 1 6 , W- 1 6
CONN 42
H-1
G-16 , X-1 6
L -1 4, Y 1- 4
CONN 43
G-1
G-15 , W-15
I 1- 5, W- 15
I- 2
I- 1 5 , W- 1 5
D -3
L -1 4, Y 1- 4
J- 1
I- 1 6 , W- 1 6
K-15
H-12 W , -12
Volume 2: Cab ©2006 Caterpillar AllRightsReserved
A u to D i gK ci ok u t Se S t w . (N. O . ) Auto D ig K ickout Set Sw. N ( .C.)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31 BB
AA
AA
Z
Z
Y
Y
X
X
Cat Data L ink Selector S w
W
W
Fork P osition Select Autoshift- Auto/Manual S w2
V
V
U
U
Symbols
BR GN
Wiper -Front (Park) Wiper -Front (Low)
OR BR
Wiper -Front Hi) ( Wiper -Rear (Park)
504 505
YL BU
Wiper -Rear L( ow) Wiper -Rear H ( i)
976 977
OR YL
Ride Cont Solenoid 1 Autoshift- A uto/Manual S w 1
506 507 508
PU WH PU
Washer -Front Washer - Rear Radio Speaker -Left
987 A958 A982
WH WH B R
Third Fun ction Diverter S ol Park Brake Sol Engine Throttle Cont
T
T
5 0 9 511
W H BR
Ra d i oSp e a e k r- Le t f (C o m m o m ) Radio Speaker -Right
E 9 0 0 E901
W H GN
Tr a n sOu pt u t Sp d+ Trans Output Spd -
5 12 515
G N GY
R a d oi S pe ak er - Ri gh t( Co mm o n ) Blowe r M otor H ( i)
E 90 6 E907
O R GY
T ar ns Ou pt ut Sp dQ + Trans Ou tput S pd Q-
S
S
516 517
GN BU
Blowe rMotor (Medium) Blowe r M otor L( ow)
E908 E909
B R WH
Trans nput I Spd + Trans nput I S pd -
R
R
5 1 8 5 21
O R Y L
Ha a z dr Fl a s h e rT oS w A C/ S wT oR e f ir ge ar nt Sw
E 9 1 7 E 91 8
W H G N
Im p l e me nt Lo kc o u S t wTo Gn d( N . O .) I m p el m e nt Lo kc ou tS wT oG nd ( N . C . )
Q
Q
5 22 5 3 7
W H G N
A C/ C ul ct hT oT h em r os at tS w Tu nr Si g n a l Sw To Fl a s h e r
E 91 9 E 9 2 0
Y L B R
A ux Lo w e r P r op or it on alS ol A u x Li t f Pr o p o r ito n a l So l
P
P
538 5 39
BR B U
Hazard Indicator T u r nS gi na lI n d ci at o r B a s ci R / gi ht
E921 E 92 2
PK G N
Rackback Proportional Sol D u m pP or po troi na lS ol en oi d
O
O
540 5 50
WH G Y
Turn S gnal i Indicator Left A ux Hy dL ef-t Di cs on ne tc To S w
E955 K 92 7
OR B U
PCS Keyp a d Data O n/ O f fP li ot So el no di Re ut nr
N
N
M
M
K977 N 93 9
PK G N
Trans Oil Temp Sensor R di eC o n rt ol S o el no di 2
N 9 5 7 N959
P K PK
Rx d -Co m m #1 Rxd - Comm #3
¹The CID isa diagnosticcode thatindicateswhich circuitisfaulty.
A524 A525
BR GN
Temp P otentiometer Pos 2 Temp Potentiometer Pos 3
N960 N963
OR OR
Txd - Comm #1 Txd -Comm #3
²The MID isa diagnosticcode thatindicateswhich electroniccontrol module diagnosed the fault.
A541 C529
PU GY
Flasher To Indicator Lights Lift Pr ess Sensor
N970 N973
YL BR
Dtr -Comm #1 Dcd - C omm #1
C530 C542
BU GN
Lift Po ition s Sensor Heated Mirror Power
N979 N981
GN GN
Signal Gnd - Comm #1 Signal Gn d- Comm #3
C 5 4 3 C 58 3
G Y G N
A u x He a te rB ol w e r + 24 vR el ay To A C / Co nt or l M o du el
P 9 1 0 P 91 5
B R P K
S e co n d a r yS et e r ni gTe ts Sw I n p u t X m s nN e ut ar lnI di a c ot r
D a t av a l i d b u t b e l o wn o r m aol p e r ai to n a l ar n g e .
F5 2 3 F5 2 4
P U B R
Te m p Po et n t oi m e et rP o s 1 Te m p P o et n t oi m e et rP o s 2
P 9 1 6 P 9 4 5
O R O R
X m s nN e u rt a l S w tci h A n ti D r fi S t o l -S i t kc
2
D a t ae r r a tci , i n t em r itte n t , o r i n c orre c t .
F5 2 5
G N
3
Volta ge ab o v en o r m a o l r s h o ret d hgi h .
P 9 4 6 P 9 76 P990
B R BR BR
A n ti Dr f i S t o l -B o m Q uci k C o u pel r S wT oL o wP r es s u r eS o l Start R elay C trl Return
T901 T902
YL PK
MSS Exciter Coil In MSS E xciter Coil Out
T
Pressure Symbol
Function
3 E - 5 4 6 4
A C/ Th e r m o tsa t
L K
J
J
Component Description
9 G- 19 50
R es si ot :r
134-2540
Resistor:
I H
1 2
Curre n t a b o v en o r m a l orgrou n d e dc i r c ut i.
6 0 6 6 0 8
G Y G N
Tu nr L a m p- Ri g h t Fl o dL a m p- Re a r
T9 6 9 T9 7 0
Y L G Y
F
F
6 1 0 611
O R PU
He a dL a m pB a s ci Head Lamp Hi
X 9 7 2 X973
G N B U
P a r T t h or ttel A u t oS h i tf Po isi t o n1 Part T hrottle Auto Shift Position 2
E
E
P o we rT ar ni C o n tr ol :
6 1 4 615
P U YL
P a r /k T a l iD/ a sh L/ a mp Cab Flood Lamp/Rops
X 9 7 4 X998
B R B R
P a r T t h or ttelA ut oSh f i P t o si i t o n3 Digital Sen or s Return
D
D
C a t er pill ar Mo ni ot ir ng S sy et m:
617
BR
T al i/ po sti i o n Lam p - L etf( R oa d Pk g /) Wdi t h
12
Bad d e vci e o r o c m po n en t .
13
O u t of c ailb ar toi n .
14
P a ar m e t e r af iul r es .
15
P a ar m e t e r af iul r es .
16
P a ar m e terno tava i l ab l e .
17
Mod ule n o t r es p on dni g .
18
S e ns o r u s p pyl f a u lt.
19
Con d i ito nn o t m et.
20
P a ar m e t e r af iul r es .
¹The FMIisa diagnosticcode thatindicateswhattype offailure hasoccurred.
Solenoid:Asolenoid isan electricalcomponentthatisactivated byelectricity.It hasa coil thatmakesan electromagnetwhen currentflowsthrough it.The electromagnet can open orclose a valve or move a piece ofmetal thatcan do work.
HarnessAndWireSymbols I H
6
Th ri dFu nct oi nC o n rt o l Fl o wS w i ch t Th ri dFu nct oi nC o n rt o l Fl o wS w i ch t
Relay (Magnetic Switch): Arelayis an electricalcomponentthatisactivated byelectricity. Ithas a coil thatmakes an electromagnetwhen currentflows through it.The electromagnetcan open orclose the switch partofthe relay.
MAGNETIC LATCH SOLENOID-Amagneticlatch solenoid isan electrical componentthatis activated byelectricityand held latched bya permanentmagnet.Ithastwo coils (latch and unlatch) thatmake electromagnetwhen currentflows through them.Italso hasan internal switch thatplaces the latch coil circuitopen atthe time the coil latches.
Stop Lamp Turn Lamp - Left
Failu r e m o d en o t i d e ni tf i a bel .
Sender: Acomponentthatis used with a temperature ropressure gauge.The sender measuresthe temperature orpressure.Its resistance changesto give an indication to the gauge ofthe temperature orpressure.
¹At roomtemperature unlessotherwisenoted.
PK
A b no r m a l r at e o f h c a ng e .
Switch(Normally Open):Aswitch thatwill close ata specifiedpoint(temp,press,etc.). The circle indicatesthatthe componenthasscrew terminalsand a wire can be disconnected fromit.
Overall:2.0 ±0.1 Tap 1.0 ±.05 120
CAN
OR YL
A bn or ma l u p d at e.
NormallyClosed
Resistance (Ohms)¹
B ol w e r M o ot r S p ee d
603
Mecha n i c a sl y set m n o t r e s p o n d i n gp r o p elry .
( 36 ±1 4 . F °)
Resistor,Sender andSolenoid Specifications
604 605
Abnorm a l rfe q u e n c y , p u le s w i d t h , o r p eiro d .
2 2. ± 0 8. C °
( 30 ±1 4 . F °)
ReedSwitch: Aswitch whose contactsare controlled bya magnet .A magnetclosesthe contacts ofa normally open reed switch;it opensthe contacts ofa normally closed reed switch.
Volta ge be l o wn o r m aol r s h o r t e d low .
9
CircuitBreaker Symbol
Ground(Case): Thisindicatesthat the componentdoesnothave a wire connected to ground. Itisgrounded by being fastened to the machine.
Part No.
L
Flow Symbol
Fuse -Acomponentin an electrical circuitthatwill open the circuitiftoo much currentflows through it.
Ground(Wired): Thisindicatesthat the componentisconnected to a groundedwire.The grounded wire isfastened to the machine.
Curre n t b e l o wn o r m a l orope n icr c ut i.
7
- 1. 1 ±0 8. C °
Contact Position
Switch(Normally Closed):Aswitch thatwill open ata specified point(temp,press,etc.). No circle indicatesthatthe wir e cannotbe disconnected fromthe component.
4
8
Deactuate
T
K
Level Symbol
SymbolsAndDefinitions
Actuate
5
11
Temperature Symbol
OffMachine SwitchSpecification Part No.
Te m pP o te n t oi m e et rP o s3 LightingCircuits Rotary B eacon
10
Printed in U.S.A.
Harness And Wire Electrical Schematic Symbols
BB
502 503
BU B R
972H: A7D1-UP A7G1-UP A7J1-UP
G 15 - ,W-15
500 501
964 973
BR BR
H-1
G -1 5, W 1- 5
K ey S wt oT ra ns mi s oi nC on rt ol Main Power Relay C oil
OR B R
322 326
Altern a tor (R) Term. O p r Mo nA tcoi nA al m r
K 3D -2
Switch - Stop Lamp
F- 7
GN OR YL
320 3 21
PK B R
C 2-
S w i ch t - Ru n ni gL a m p S wi ct h- S ec on da ry S et er ni gT es t
H 1-
3 06
O R G Y YL
S w i ct h- Ri de C o n rt ol
H- 1 2 , V- 1 2 H 1- 2, V 1- 2
3 07 308
GN W H
L-16 , U-16 K - 15 , Y - 15
C-15
BK BK
4 16 4 17 419
L-16 , Y-16 L-11 , U-11
K -7 D-7
Radio -Product Link
BK B K
966H and 972H Wheel Loader Electrical System
L-11 , Y-11
L-7 K -7 P CS C u st o m e r D at aC o nn
Relay -Axle Cooler
B K BK
411 4 1 3
L-7
CONN 33
I-16 , W -16 L 1- 4, Y- 14
I- 1 2 , V- 1 2
B K B K
I m p C l on tL ow er Pr op or it on alS ol Impl Cont Pilot Press Sol
CONN 32
H 1- 3, X- 13
G-3 E 1-
K 1- 4
2 51 290
O R BR
I m p C l on tT li tL ev e r P o s t ioi n I m p C l on tL fi tP or po troi na lS ol
I 7-
Keypad - WLPCS
A273 C216
H 71 4 H717
G N P K
J oy tsci k- Im pl em e n tC on rt ol
291 A 2 7 2
BasicMachineCircuits S at rt er R el ay C oi l o t T ra ns mi ss oi n Co nt ro l
H 71 1 H 71 3
WH GN G N
DC D/ C Co n ve tr e r Me m o yr Ou pt u t Temp Potentiometer Pos 1
F ai u l e r De sc ri pt oi n
D-1
GN G N
A/C Sw u Jmper D C / D C C on e v tr er Po we rO ut p u t
D a t av a l i d b u t a b o v en o r m aol p e r ai to n a l ar n g e .
E 1- 5
B R R D
R D PU
1
E 1- 5
A al m r -m I pl em en tA ud bi elA l er t Alarm -Quick C oupler
136 1 3 8
WH B U
0
Schematic Location
Component A al m r - A ct oi n
134 1 35
567 5 92
F MI No .
Component Location
F or nt Ro ps Hi dF ol od A tt a c hm en t ControlCircuits
A 5 1 3 A523
Failure Mode Identifiers (FMI)¹
RENR6332-01 November2006
D es cr p i it on
LightingCircuitsContinued
102 104
G
G
RelatedElectrical Service Manuals Title M a c hi ne S ec u r ti yS sy et m: P or d u tc Li n k Ra d i o :
I m p el m e n t Co n tr o l :
P ay ol ad C o n rt ol S sy et m:
C
C
B
B
A
A 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1 2
Deutschconnecto r: Typical representation ofaDeutschconnector.Theplugcontainsall socketsandthereceptaclecontainsallpins.
Sure-Sealconnector:Typicalrepresentation ofaSure-Sealconnector.Theplugandreceptacle containbothpinsand sockets. HarnessIdentificationLetter(s): (A,B,C, ...,AA,AB,AC,...)
Wire,Cable,orHarnessAssemblyIdentification: IncludesHarnessIdentificationLettersandHarness ConnectorSerializatio n Codes
HarnessConnectorSerializatio nCode:The "C"stands for"Connector"and the numberindicateswhich connectorin the ha rness.(C1,C2,C3,. ....)
FormNumber R EN R 2 46 2 R E N R 7 9 1 1
S EN R 1 39 4
PartNumberfor ConnectorPlug
C-C4 AG-C3 130-6795 130-6795
AG-C4 111-7898
Pin
Socket
L-C12 3E-5179
PartNumberFor ConnectorRecepticle
1
325-AG135PK-14
R E N R 8 8 4 6 R E N R 8 8 5 8
R EN R 6 29 3
Receptacle
5A Pin orSocket Number
Single Wire Connector
9X-1123
Fuse (5Amps) Component PartNumber
Plug Harnessidentificationcode: Thisexampleindicateswire 135 in harness"AG".
2 Ground Connection
200-L32 BK-14 CircuitIdentification Number
WireColor
WireGauge
2 L O V 1 e 0 - g a P 2 6 3 3 3 6 R N E R
