3408E and 3412E Engines Electrical System.pdf

2-Pin DT Connector 

Electrical Schematic Symbols And Definitions

SENR1026-02 February2008

9-Pin HD10Receptacle 2

1

Symbols

D

E

C

Component Identifiers (CID¹) Module Identifier (MID²) EngineControlModule (MIDNo. 036) 1

I nj ec to r Cy il nd er 1

2

I nj ec to r Cy il nd er 2

3

I nj ec to r Cy il nd er 3

4

I nj ec to r Cy il nd er 4

5

I nj ec to r Cy il nd er 5

6

I nj ec to r Cy il nd er 6

7

I nj ec to r Cy il nd er 7

8

I nj ec to r Cy il nd er 8

9

I nj ec to r Cy il nd er 9

10

I nj ec to r Cy il nd er 1 0

 A

3E-3365Wedge

155-2261Wedge

3E-3364Receptacle As.

F

155-2269Plug As.

J G

102-8802Receptacle Kit

Pi n#

T

H

155-2270Plug Kit

Wire Gauge

Component

CID

B

Pressure Symbol

9 W-0852

9W-08 44

16 -1 -1 8

8T-87 29

8 T-8730

Level Symbol

Circuit Breaker  Symbol

Flow Symbol

8T-8736Receptacle

Socket #

14

Temperature Symbol

Wire Gauge

Pi n#

Symbols And Definitions

Soc ket #

14

9 W-0852

9W-08 44

16 -1 -1 8

8T-87 29

8 T-8730

Fuse -Acomponentinanelectricalcircuitthatwillopenthecircuitiftoomuchcurrentflows throughit. Switch (Normally Open):  Aswitch that willclose at a specified point (temp, press, etc.). The circleindicatesthatthecomponenthasscrewterm e nthasscrewterminalsandawirecanbedisconnectedfromit. Switch (Normally Closed): Aswitch Closed):  Aswitch that willopen at a specified point (temp, press, etc.). Nocircle indicatesthatthe wirecannotbe disconnectedfromthe component.

I nj ec to r Cy il nd er 1 0 I nj ec to r Cy il nd er 1 1

12

I nj ec to r Cy il nd er 1 2

42

I n ej c o t r A ct u aito n Va l ve

Ground (Wired): Thisindicatesthat thecomponentis connectedtoa groundedwire.The groundedwire isfastenedto themachine.

40-Pin Deutsch Connector 

3-Pin DT Connector 

10 11

6

110-6844Seal

5

4

91

T hr ot tl eS wi ct h E n gi n e Ol iP r es s ur e S e ns o r  

110

EngineCoolantTemperature a tureSensor 

7

18

13

22

19

28

23

164

InjectorActuati onPressureControlValv e ControlValv e

4 0 39 3 8

3E-3371Wedge

S ys te m Vo tl ag e Hgi h I na t k e M an i o f l d AriT e m p Se n s or  

3E-3370Receptacle As.

169-8670Plug As.

174

F u el T e mp e r at u e r Se n so r  

175

E n gi n e OliT e mp e r at u e r S e n so r  

102-8803Receptacle Kit

190

E ng ni e Sp e ed S en so r  

2 48

C at D at a Li nk

253

P e sr o na l ti y M od u el

155-2260Plug Kit

Wire Gauge

Pi n#

1110-6848Plug As. or  110-6847Plug As. (ServiceReplacement)

Socket #

14

9 W-085 2

9W-0 844

16 -1 -1 8

8T-8 729

8T-8730

14 16 -1 -18

262

5 V ol t Se n o s r D cP ow er  

263

D i gi t al S e ns o r Su p pyl D e ce l T h or t lt e P o istoi n C r an k W ti h o ut I n j ec t oi n I n pu t

268

P r og r a m m e d Pa r a m e t e r Fa u tl

273

M a ni f ol d P e r s su r e S en s or  

274

A t mo s ph e ir cP r e s u er S e n s or  

275

RightTurboInletPressure u re Sensor 

277

T i mi n g C al i br a it o n S en s or  

291

E n gi n e C oo l ni g F a n So l en o di

4

3

Reed Switch: Aswitchwhosecontactsarecontrolledbyamagnet o lledbyamagnet. Amagnetclosesthe contactsofanormallyopenreedswitch;itopensthecontactsofa normallyclosedreedswitch.

7 13

22

3408E and 3412E Engines Electrical System

2 1

18

19

28

23 29 3 7 36 3 5

Sender: Acomponentthatisusedwithatemperatureorpressuregauge e orpressuregauge.Thesender  measuresthetemperature orpressure. Itsresistancechanges togive anindicationto thegaugeof thetemperatureor pressure.

T

Relay (Magnetic Switch): Arelay isan electricalcomponentthat isactivatedby electricity. It has a coil that makes an electromagnet when current flows through it. The electromagnetcanopenorclosetheswitchpartoftherelay.

99C1-UP 80M1-UP

110-6847PlugAs.-P1

E l ec t o r n ci C o nrt o l Mo d uel E n gi n e Tm i i ng C a lbi r at i on

264

5

12

34 4 0 39 3 8

Wie r G a ug e

254 261

266

Ground (Case): Thisindicatesthatthecomponentdoesnothaveawireconnectedtoground. Itisgroundedbybeingfastenedtothemachine.

29 3 7 36 3 5

110-6848PlugAs.-P2 or 

155-2276Wedge

6

168 172

2 1

12

34

100

3

S o ck e t# 8T-8730

Solenoid: Asolenoid isan electricalcomponentthat isactivated byelectricity. Ithas a coilthatmakes anelectromagnetwhen currentflows throughit. The electromagnet canopenorcloseavalveormoveapieceofmetalthatcandowork.

8T-873 0

MAGNETICLATCHSOLENOID -A magneticlatchsolenoid isan electricalcomponentthat is activatedbyelectricityandheldlatchedbyapermanentmagnet.Ithastwocoils(latchandunlatch) that make electromagnet when current flows through them. It also has an internalswitch that places thelatchcoilcircuitopenatthetimethecoillatches.

40-Pin DRCConnector  3E-8557Bolt

4   0   3   9 

        0         4

        0         1

        6         3

        6

        5         3

        5

Harness And Wire Symbols

        0        0        0        0         1        2        3        4

 3   8 

4-Pin DT Connector 

 3  7   3   6 

342

S e co n d ar y E ng i ne S p e ed S e n so r  

544

E n gi n e C oo l ni g F a n Sp e e d Se n so r  

545

E t he r I nej c it o n C on t o r l R eal y

596

I mp e l me nt C o nt ro l

7 99

S er vi ce T oo l

1599

E n gi n e F an B l a de P o stii on P u l l So l en o di

D D R E   C  U 1  T   6   S   3  -4   C   5   0  H  S  I    3  P  4  D

        6        6        6         6         1        2        3

P ni

        5        5        5         5 1         2        3

1 2

S oc ke t

WireColor 

3E-4367Ring

 3  1 

        1         3

        1

3E-3377Wedge

3E-3376Receptacle As.

        1        1        1         1        1        2        3

155-2262Wedge

102 8- 804 Re Receptacle Kit 9X-3132Seals

8T-9834Connector As.

1600 E n gi n e F an B l a de P o stii on P u s h So l en o di ¹ The CIDis a diagnostic code that indicates which circuit is faulty.

Wi e r Gauge

²TheMIDisadiagnosticcodethatindicateswhi chelectroniccontrolmodule o lmodule diagnosedthe fault.

Pi n#

Wi e r Gauge Socket #

14

9W-0 852

9 W-0844

1 6 -1 -18

8T-8729

8T-87 30

9X-1343Receptacle As.

Pi n#

155-2272Plug As. SingleWire Connector 

9W-085 2

9W-0844

8 T-8 729

8T-873 0

105-9344

Wire Gauge Plug

GroundConnection

1 2

CONNECTORS

CONNECTORS

CircuitNumber  Identification

Socket #

14

Component PartNumber 

Receptacle

155-22 71 Plug Kit

16 -1 -18

Fuse

AA 1

325-PK-14

 3   3 

 3  2 

Wire, Cable, or Harness  Assembly Identification

 A

4 3

3408E And 3412E Engines For Caterpiller Built Machines

©2008Caterpillar   All Rights Reserved

Typicalrepresentationof aDeutsch connector. Theplug containsall socketsand thereceptaclecontains allp ins.

2

200-BK-14 PinorSocket Number 

1 2

Typicalrepresentationof aSure-Seal connector.Theplug andreceptacle containbothpins andsockets.

Printedin U.S.A.

 Atmospheric PressureSensor 

Failure ModeIden tifiers (FMI)¹ FM I No .

F ai lu e r Des cr p i it on

0

D aa t v a ldi b u t a b ov e n o m r a l op e a r t oi n a l ar n g e.

1

D aa t v a ldi b u t b e ol w n o m r a l o pe r at i on a l r an g e .

2

Data errati c, nterm i ittent,or ncorr i e ct. ect.

3

V otla g e ab o ve n o r ma l o r s ho r e t d h i gh .

4

V otla g e be l ow n o r ma l o r s ho r e t d l o w.

5

C u r e nt b e ol w n o m r a l o ro p e n ci r cu i .t

TOP VIEW

6

C u r e nt a b o v e n or m al o r g r o un d e d cric ui t .

7

Mechanicalsystem t emnot responding properly. l y.

8

A b no r ma l f r eq u e nc y , p ul s e wdi t h , or p e roi d .

9

A bn or ma l up da e t .

10

A bn or ma l ra te o f c ha ng e .

11

F aliu e r m o d e n ot i d e nt i if a bl e .

12

B a dd e vi c eo r o c m po n e nt .

13

O ut o f ca il br at oi n . P ar am et er f al iur es . P ar am et er f al iur es .

16

P a ar m et e r n ot a v alia bl e .

17

M od uel n o t er sp o nd n i g.

18

S en so r su p pl y a f utl. C on dtio i n n ot m et .

20

P ar am et er f al iur es .

MachineInterface Connector  J3

Injectors 10 &12 P58

14 15

19

CaterpillarSupplied EngineService ToolConnector  J60

TimingCalibration (TC) Probe Connector  J26/P26 Intake Manifold PressureSensor  Injectors 9&11 P54

Injectors 6& 8 P57

¹The FMI isa diagnostic code that indicates what type of failure has occurred. TimingCalibration (TC) Probe Connector  J26/P26

Event Codes EngineControl Ev ent Code E017

High E ngineCoolant Temperature Warning n ing

E025

High InletAirTemperature a tureDerate

E027

High InletAirTemperature a tureWarning

E 1 00

L o w E ng i ne O i l Per s su r e W ar nni g

E164

High Injector t or Actuation Press u re ure

E 1 90

E n gi n e O ve r sp e e d Wa r ni n g

E 26 5

U se r De fni e d Sh ut do w n I n el t A i r Re s rt i tci on W a r ni n g

Electronics Ground Stud

Secondary Speed/TimingSensor 

InjectionActuation PressureSensor 

ECM Connector  J1/P1

ECM Connector  J2/P2

Electronic Control Module MachineInterface Connector  J3

Electronic Control Module

CaterpillarSupplied EngineService ToolConnector  J60

InjectionActuation PressureControl ValveConnector  J46/P46

Electronics Ground Stud

Injectors 1& 3 P52

PrimaryEngine Speed/Timing SensorConnector  J20/P20

Eng ine Control:

Fuel TemperatureSensor 

ECM Connector  J1/P1

Related Electrical ServiceManuals Title

Primary Speed/TimingSensor 

ECM Connector  J2/P2

Condit ion

E 2 72

Injectors 5& 7 P53

TimingCalibration (TC) Probe

Injectors 2& 4 P56

 Atmospheric Pressure Sensor 

Form Number  SENR2 945-05 InjectionActuation PressureSensor  ConnectorJ45/P45 EngineCoolant Temperature Sensor 

IntakeManifold PressureSensor  ConnectorJ23/P23

 Atmospheric PressureSensor  ConnectorJ27/P27

EngineCoolant Temperature Sensor  InjectionActuation PressureControlValve EngineOil PressureSensor 

EngineOil TemperatureSensor 

   )   s   e    h   c   n    i    4    2   x   s   e    h   c   n    i    9    3   :   s   n   o    i   s   n   e   m    i    D    (  ,    W    &    B  ,   e   g   a    P    0    2

   2    0     6    2    0    1    R    N    E    S

3412E ENGINE INJECTOR SOLENOID CONNECTIONS ONLY CYL HEAD SOL 1

P2 INJECTOR SOL 1 INJECTOR SOL 2 INJECTOR SOL 3 INJECTOR SOL 4 INJECTOR SOL 5 INJECTOR SOL 6 INJECTOR SOL 7 INJECTOR SOL 8 INJECTOR SOL 9 INJECTOR SOL 10 INJECTOR SOL 11 INJECTOR SOL 12 INJECTOR COMMON 1 & 3 INJECTOR COMMON 2 & 4 INJECTOR COMMON 5 & 7 INJECTOR COMMON 6 & 8 INJECTOR COMMON 9 & 11 INJECTOR COMMON 10 & 12

16 40 26 34 32 28 38 22 37 18 31 12 5 11 17 21 27 33

IAPCV RETURN IAPCV COOLANT TEMPERTURE FUEL TEMPERTURE  ATMOSPHERIC PRESSURE MANIFOLD PRESSURE ENGINE OIL PRESSURE

35 29 9 15 20 23 8 2 14 DRIVER SOLENOID RETURN 7 13 PROPORTIONAL VALVE 19 (IFEQUIPED) THROTTLE POSITION 24 FAN SPEED 25 (IFEQUIPED) 1 3 4 6 10 30 36 39

   )   s   e    h   c   n    i    4    2   x   s   e    h   c   n    i    9    3   :   s   n   o    i   s   n   e   m    i    D    (    2   r   o    l   o    C  ,   e   g   a    P    0    2

   2    0     6    2    0    1    R    N    E    S

COOLANT FLOW  OIL TEMPERTURE +12V ENGINE SPD/TMG IAPCV PREESURE PRIMARY SPEED/TIMING SECONDARY SPD/TMG DIGITAL SENSOR RETURN  ANALOG POWER (+5V)  ANALOG SENSOR RETURN GND LVL SHUTDOWN (NO) SW  GND LVL SHUTDOWN (NC) SW  SAE J1939 SHIELD GND J1939 DATA + TX J1939 DATA - RX SWITCH OR DIGITAL SENSOR + BAT (SWITCHED) KEYSWITCH SWITCH 4 SWITCH 5 SWITCH OR DIGITAL SENSOR  ANALOG SENSOR EMS ENG ON/CRUISE ON/OFF LAMP EMS PRESSURE/TEMP WARMING LAMP STARTING AID SW OVERRIDE (IFEQUIPED) RELAY/THROTTLE ON/OFF SWITCH LAMP DIGITAL POWER +8V + BATTERY (UNSWITCHED) EMS PRESS/TEMP WARNING LAMP SWITCH OR DIGITAL SENSOR START AID RELAY/CHECK ENGINE LAMP START AID RELAY/CHECK ENGINE LAMP TC PROBE + TC PROBE + BATTERY (UNSWITCHED)  ATA DATA LINK  ATA DATA LINK + CAT DATA LINK CAT DATA LINK + - BATTERY - BATTERY

26 31 32 37 38 39 29 36 30 33 2 8 15 10 16 13 23 14 20 19 17 22 27 25 34 35 4 21 24 28 40 18 12 6 1 7 3 9 5 11

 A701-GY  A702-PU  A703-BR  A704-GN  A705-BU  A706-GY  A707-PU  A708-BR  A709-OR  A710-GY  A711-PU  A712-BR F726-YL F727-BU F728-BR F729-GN F730-GY F731-OR E798-PK E797-WH 995-BU  A751-YL  A747-GY  A746-PK 994-GY F714-PK F713-OR E799-BR F701-BR F700-BU F702-GN F703-GY F704-OR F737-YL

 A701-GY  A702-PU  A703-BR  A704-GN  A705-BU  A706-GY  A707-PU  A708-BR  A709-OR  A710-GY  A711-PU  A712-BR F726-YL F727-BU F728-BR F729-GN F730-GY F731-OR

L1

997-OR

412-BU E795-YL 996-GN E796-GN 999-WH F732-PK 998-BR 997-OR 993-BR

NoteB

J54P54 1 2 3 4

F731-OR  A712-BR F731-OR  A710-GY

J58P58 4 3 2 1

F729-GN  A708-BR F729-GN  A706-GY

J57P57 4 3 2 1

F727-BU  A704-GN F727-BU  A702-PU

J56P56 4 3 2 1

CYL HEAD SOL 9

CYL HEAD SOL 11

CYL HEAD SOL 12

CYL HEAD SOL 10

CYL HEAD SOL 8

CYL HEAD SOL 6

CYL HEAD SOL 4

CYL HEAD SOL 2

3408E ENGINE INJECTOR SOLENOID CONNECTIONS ONLY

CYL HEAD SOL 1

INJECTOR INJECTOR INJECTOR INJECTOR INJECTOR INJECTOR INJECTOR INJECTOR

16 40 26 34 32 28 38 22 37 18 31 12 INJECTOR COMMON 1 & 3 5 INJECTOR COMMON 2 & 4 11 INJECTOR COMMON 5 & 7 17 INJECTOR COMMON 6 & 8 21 27 33

L4

412-BU 998-BR

L4

P47 1 2

1 2

997-OR E796-GN 993-BR

NoteB

BK

998-BR 999-WH

 A C B

 A B C

+5V Signal Ground

Injection Actuation Pressure Sensor

+12V Ground Signal

Primary Speed/Timing Sensor

996-GN F732-PK

Ground +12V Signal

B  A C

 A C B

+5V Signal Ground

F729-GN  A708-BR F729-GN  A706-GY

J57P57 4 3 2 1

F727-BU  A704-GN F727-BU  A702-PU

J56P56 4 3 2 1

CYL HEAD SOL 6

CYL HEAD SOL 4

CYL HEAD SOL 2

1 2 3 4 5 6 7 8 9 10 11 12

NoteB

Secondary Speed/Timing Sensor 3E-6410

Coolant Temperature Sensor 102-2240

J23/P23 997-OR  A746-PK 993-BR

NoteB

+5V Signal Ground

 A C B

TO

+

BATTERY

TO

-

BATTERY

(SWITCHED)

Manifold Pressure Sensor 103-6091

J27/P27 997-OR  A747-GY 993-BR

 A C B

+5V Signal Ground

 Atmospheric Pressure Sensor 103-6093

J22/P22 997-OR 994-GY

L6

993-BR

 A C B

+5V Signal Ground

Oil Pressure Sensor

+5V Signal Ground

Oil Temperature Sensor

103-6092

P51/J51 997-OR E795-YL 993-BR NoteB

 A C B

106-0735

P43/J43 997-OR  A751-YL 993-BR

NoteB

+5V Signal Ground

 A C B

Fuel Temperature Sensor 102-2240

L5

L5

NoteB

L7

L6

L6

L6

1

F723-PK

L8

F724-PU P26 J26 J60 SERVICE TOOL CONNECTOR

COMPONENT KEY

NOTE B: WIRE PAIRS 892-BR & 893-GN, E793-BU & E794-YL, 711-GN & 712-GY, MUST BE TWISTED AT LEAST 1 TURN PER 25mm.

J53P53 1 2 3 4

CYL HEAD SOL 8

P21/J21 997-OR 995-BU 993-BR

F724-PU

AMERICAN TRUCKING AS SOCIATION CONTROL MODULE

 A705-BU F728-BR  A707-PU F728-BR

CYL HEAD SOL 7

3E-6410

(2 PIN DT PLUG)

ELECT RONIC

J52P52 1 2 3 4

+ BATTERY - BATTERY US/METRIC SCROLL CAT DATA LINK + CAT DATA LINK MONITOR AUX TEMP/PRESSURE  WARNING LAMP  WARNING ALARM LAMP POWER/DIMMER

6V-2485

TIMING CAL CONNECTOR

ECM:

L3

 A701-GY F726-YL  A703-BR F726-YL

CYL HEAD SOL 5

J44/P44 998-BR

L5

F723-PK

 ATA:

L1

F726-YL F727-BU F728-BR F729-GN

BK

229-BK-14

ENGINE CYLINDER HEAD GROUND STUD

 A701-GY  A702-PU  A703-BR  A704-GN  A705-BU  A706-GY  A707-PU  A708-BR F726-YL F727-BU F728-BR F729-GN

J20/P20 996-GN

L5

120-YL E793-BU E794-YL 892-BR 893-GR 229-BK-14

 A701-GY  A702-PU  A703-BR  A704-GN  A705-BU  A706-GY  A707-PU  A708-BR

COOLANT FLOW SWITCH

J3/P3 MACHINE INTERFACE CONNECTOR

F703-GY F701-BR F704-OR F713-OR F714-PK E799-BR F700-BU 412-BU F702-GN  A700-OR 998-BR 997-OR 993-BR

NoteB

L9

NoteB

P1

NOTE: For specific ECM pin functional descriptions, refer to the Troubleshooting Manual for your application.

1 2 3 4 5 6 7 8

CYL HEAD SOL 3

IAPCV REF: 100-5632 (REF: 9X-8200 FOR CONNECTOR)

2 1

412-BU 998-BR

SOL SOL SOL SOL SOL SOL SOL SOL

J45/P45

F715-PU F716-WH  A234-BK F711-GN F712-GY F722-OR 113-OR F717-YL F718-BU F721-GY F725-WH F707-WH F706-PU F720-GN F709-BU  A700-OR 150-RD-14 F705-PK F719-BR F708-YL F710-BR 150-RD-14 E793-BU E794-YL 892-BR 893-GR

NoteB

 A709-OR F730-GY  A711-PU F730-GY

CYL HEAD SOL 7

E798-PK E797-WH

F714-PK F713-OR E799-BR F701-BR F700-BU F702-GN F703-GY F704-OR 412-BU 998-BR 997-OR 993-BR

L2

993-BR

 A705-BU F728-BR  A707-PU F728-BR

J53P53 1 2 3 4

CYL HEAD SOL 5

P46

E798-PK E797-WH 995-BU  A751-YL  A747-GY  A746-PK 994-GY 412-BU E795-YL 996-GN E796-GN 999-WH F732-PK 998-BR 997-OR 993-BR

412-BU 998-BR

F715-PU F716-WH  A234-BK F711-GN F712-GY F722-OR 113-OR F717-YL F718-BU F721-GY F725-WH F707-WH F706-PU F720-GN F709-BU  A700-OR 150-RD-14 F705-PK F719-BR F708-YL F710-BR F723-PK F724-PU 150-RD-14 E793-BU E794-YL 892-BR 893-GR 229-BK-14 229-BK-14

L3

 A701-GY F726-YL  A703-BR F726-YL

J52P52 1 2 3 4

CYL HEAD SOL 3

NoteB

L7

120-YL 229-BK-14 893-BR 892-GR

NoteB

E793-BU E794-YL

 A B C D E F G H J

+ BATTERY - BATTERY CAT DATA LINK + CAT DATA LINK -

 ATA DATA LINK  ATA DATA LINK +

L8

L8

F715-PU F716-WH 113-OR F717-YL F718-BU F719-BR  A234-BK F711-GN F712-GY E793-BU E794-YL 892-BR 893-GR 150-RD-14 150-RD-14 F721-GY F722-OR F720-GN F706-PU F707-WH F705-PK F725-WH  A700-OR F708-YL F709-BU F710-BR F724-PU F723-PK

NoteB

NoteB

L9

NoteB

150-RD-14 150-RD-14 F700-BU F701-BR E799-BR 892-BR 893-GR  A700-OR 998-BR F702-GN F703-GY F704-OR F705-PK 997-OR 993-BR  A234-BK F711-GN F712-GY F713-OR F714-PK F710-BR F709-BU F708-YL F707-WH F706-PU 113-OR F715-PU F716-WH F717-YL F718-BU E794-YL E793-BU F725-WH F723-PK F724-PU F719-BR 412-BU F720-GN F721-GY F722-OR

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 32 33 34 35 36 37 38 39 40

+ BATTERY (UNSWITCHED) + BATTERY (UNSWITCHED) PROPORTIONAL VALVE SOLENOID(IF

TO

+

BATTERY

EQUIPED) NoteB

DRIVER SOLENOID RETURN CAT DATA LINK CAT DATA LINK + DIGITAL POWER +8V DIGITAL SENSOR RETURN THROTTLE POSITION FAN SPEED (IF EQUIPED) USER DEFINED SHUTDOWN (IF EQUIPED) EMS PRESS/TEMP WARNING LAMP  ANALOG POWER (+5V)  ANALOG SENSOR RETURN SAE J1939 SHIELD GND J1939 (CAN) DATA + TX J1939 (CAN) DATA - RX

J42 SERVICE TOOL CONNECTOR 113-OR 229-BK-14 NoteB

893-BR 892-GR NoteB

MANIFOLD PRESSURE START AID RELAY/CHECK ENGINE LAMP RELAY/THROTTLE ON/OFF SWITCH LAMP START AID RELAY/CHECK ENGINE LAMP EMS ENG ON/CRUISE ON/OFF LAMP EMS PRESS/TEMP WARNING LAMP + BAT (SWITCHED) KEYSWITCH GND LVL SHUTDOWN (NO) SW  GND LVL SHUTDOWN (NC) SW  SWITCH 4 NoteB SWITCH 5  ATA DATA LINK +  ATA DATA LINK  ANALOG SENSOR TC PROBE + TC PROBE SWITCH OR DIGITAL SENSOR EMS COOLANT FLOW IF EQUIPED STARTING AID SW OVERRIDEIF EQUIPED SWITCH OR DIGITAL SENSOR SWITCH OR DIGITAL SENSOR

E793-BU E794-YL

 A B C D E F G H J

+ BATTERY - BATTERY CAT DATA LINK + CAT DATA LINK -

 ATA DATA LINK  ATA DATA LINK +

(+) BATTERY (+) BATTERYSWITCHED STARTING CIRCUIT (-) BATTERY/ SENSORRETURN SENSOR/ ACTUATORSUPPLY SIGNALPLUS TO ECM SIGNALMINUS TO ECM CONTROLPLUS FROM ECM CONTROLMINUS FROM ECM CATDATALINK J1939(CAN)DATA LINK  ATADATALINK