FILE DETAILS: Caterpillar C-9 Engine Class Combine Applications Electrical System Schematic Manual

DT Connector Receptacle

DT Connector Plug SENR9578-01 October 2001

Receptacle Wedge Plug Wedge

Receptacle Wedge Plug Wedge

Receptacle Wedge Plug Wedge

HD Connector Receptacle

HD Connector Plug

Pin Contact

Socket Contact

Speed/Timing Sensor Connectors

Sealing Plug

IAPCV Connector

150 Series Plug

150 Series Receptacle

CLJ1-UP

ECM Connectors

ECM Side

ECM Connector P1

C-9 Engine For Claas Combine Applications Electrical System

Harness Side

© 2001 Caterpillar All Rights Reserved ECM Side

ECM Connector P2

Harness Side

Printed in U.S.A.

T945/GY T946/PU T947/YL T948/BR T949/BU T950/GN T962/WH T956/GY T961/GN T955/GN T960/DK-BU T954/GY T959/BR T953/DK-BU T958/YL T952/BR T957/PU T951/YL

ELECTRONIC CONTROL MODULE (ECM)

UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED INJECTOR RETURN 6 INJECTOR RETURN 5 INJECTOR RETURN 4 INJECTOR RETURN 3 INJECTOR RETURN 2 INJECTOR RETURN 1 INJECTOR 6 INJECTOR 5 INJECTOR 4 INJECTOR 3 INJECTOR 2 INJECTOR 1 TIMING CALIBRATION PROBE TIMING CALIBRATION PROBE + PRIMARY SP/TMG SIG PRIMARY SP/TMG SIG + SECONDARY SP/TMG SIG SECONDARY SP/TMG SIG + COOL. TEMP. SNSR PASSIVE SNSR COMMON ANALOG SNSR POWER (+5V) ANALOG SNSR COMMON TURBO OUTLET PRESS. SNSR ATMOSPHERIC PRESS. SNSR ENG OIL PRESS. SNSR UNUSED INLET MANIFOLD AIR TEMP. SNSR INJ. ACTUATION PRESS. SNSR IAP CONTROL VALVE + IAP CONTROL VALVE (MIDDLE) ENGINE OIL TEMP. SNSR (END) ENGINE OIL TEMP. SNSR ENG OIL PRESS. SNSR (+5V) ENG OIL PRESS. SNSR (RTN)

J2/P2 20 T945/GY 21 T946/PU 28 T947/YL 29 T948/BR 65 T949/BU 66 T950/GN 68 T962/WH 67 T961/GN 47 T960/DK-BU 46 T959/BR 45 T958/YL 44 T957/PU 55 T956/GY 54 T955/GN 39 T954/GY 38 T953/DK-BU 37 T952/BR 36 T951/YL 23 G857/YL 22 G856/WH 49 E963/BK 48 E964/WH 59 E965/BU 58 E966/YL 32 995/BU 18 G833/PK 2 G828/WH 3 G829/GN 40 A746/PK 14 A747/GY 24 994/GY 16 C991/PK 35 C967/BU G849/BR 27 G854/PK 61 G855/PU 62 E795/YL 34 K882/BU 33 G826/BR 41 G827/BU 42

UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED

1 4 6 7 8 10 11 13 15 17 19 25 26 30 31 43 51 52 53 56 57 69 70

OIL GRADE RETURN OIL GRADE CODE 2 OIL GRADE CODE 1 UNUSED UNUSED IAH RELAY RETURN INLET AIR HEATER

5 60 50 63 64 9 12

12 11 10 9 8 7 13 6 14 5 15 4 16 3 17 2 18 1 P300/J300

P306/J306

T962/WH T956/GY T961/GN T955/GN T960/BU T954/GY T959/BR T953/BU T958/YL T952/BR T957/PU T951/YL

P303/J303

2 1

P301/J301

INJECTOR CYLINDER NO.3

2 1

TIMING CALIBRATION PROBE CONNECTOR G857/YL 2 P400 G856/WH 1

INJECTOR CYLINDER NO.1 E963/BK E964/WH

INJECTOR CYLINDER NO.2

P401/J401 1 SIGNAL 2 SIGNAL +

INPUT SIGNAL WIRES TO ECM OUTPUT SIGNAL WIRES FROM ECM

INJECTOR CYLINDER NO.6

2 1 INJECTOR

2 1

P302/J302

(+) BATTERY SUPPLY WIRES

2 1

P304/J304

SENSOR SUPPLY VOLTAGE SIGNAL PLUS

CYLINDER

NO.5

INJECTOR CYLINDER NO.4

SIGNAL MINUS (-) BATTERY / SENSOR RETURN

NOTE A: WHEN CHANGING OIL GRADES, THE OPERATOR MUST ENSURE THAT THE CORRESPONDING PLUG IS INSERTED INTO THE WIRING HARNESS. FOR MORE INFORMATION REFER TO THE ENGINE OPERATION AND MAINTENANCE MANUAL. COMPONENTS ARE SHOWN WITH THE KEY OFF

PRIMARY SPEED/TIMING SENSOR (169-3300)

E965/BU E966/YL

P402/J402 1 SIGNAL 2 SIGNAL +

995/BU G833/PK

P100/J100 1 SIGNAL 2 COMMON

G828/WH A746/PK G829/GN

P200/J200 A +5V C SIGNAL B RETURN

G828/WH A747/GY G829/GN

P203/J203 A +5V C SIGNAL B RETURN

G826/BR 994/GY G827/BU

P201/J201 A +5V C SIGNAL B RETURN

C B A

0W20 BLACK

C B A

NC

NC

J204/P204 A C B

G828/WH G849/BR G829/GN

10W30 AND 15W40 PLUGS ARE SHIPPED WITH THE ENGINE. OIL GRADE C PLUGS B NOTE A A

P103/J103 1 SIGNAL 2 COMMON

C967/BU G833/PK

0W20, 10W30, AND 15W40 PLUGS ARE AVAILABLE IN SERVICE KIT 214-7170.

+5V SIGNAL RETURN P500/J500 1 SIGNAL + SIGNAL 2

G854/PK G855/PU

15W40 RED 10W30 GREEN

ENGINE COOLANT TEMPERATURE SENSOR (130-9811) TURBO OUTLET PRESSURE SENSOR (INTAKE MANIFOLD AIR) (161-1704) ATMOSPHERIC PRESSURE SENSOR (161-1703) ENGINE OIL PRESSURE SENSOR (161-1705)

INTAKE MANIFOLD AIR TEMPERATURE SENSOR (130-9811)

INJECTOR ACTUATION PRESSURE SENSOR (167-1708) INJECTOR ACTUATION PRESSURE CONTROL VALVE (IAPCV)

E795/YL G833/PK

J101A/P101A 2 1

SIGNAL COMMON

ENGINE OIL (MIDDLE) TEMPERATURE SENSOR (191-6587)

K882/BU G833/PK

J101B/P101B 2 1

SIGNAL COMMON

ENGINE OIL (END) TEMPERATURE SENSOR (191-6587)

E798/PK E797/WH

NOT PRESENT ON ALL ENGINES

SECONDARY SPEED/TIMING SENSOR

A C NOT USED B

G828/WH C991/PK G829/GN

998/BR H478/BU H477/YL E798/PK E797/WH J702/BK G850/BU

2 1

P305/J305

1 NOT USED 2

J702/BK G850/BU

CIRCUITS WITHIN THIS AREA ARE RECOMMENDATIONS J1

P1

UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED

1 2 3 4 6 7 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 29 30 31 32

COOLANT LEVEL COOLANT LEVEL RETURN

54 5

UNUSED UNUSED UNUSED UNUSED

33 35 36 37

CAT DATA LINK CAT DATA LINK + J1939 SHIELD J1939 DATA + J1939 DATA -

9 8 42 50 34

UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED

38 39 40 41 43 45 46 47 49

+BAT.(UNSWITCHED) +BAT.(UNSWITCHED) +BAT.(UNSWITCHED)

52 53 48

RD RD RD

DIAGNOSTIC LAMP DIAGNOSTIC ENABLE SW

28 44

WH YL

-BAT. -BAT. -BAT.

65 61 63

BR BR BR

70 64

UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED UNUSED

51 55 56 57 58 59 60 62 66 67 68 69

CONN MD 2 3 5 4 11 10 9 12 1 6

GR/BR GR BR/BL OR/BL YL/BL RD A B C

KEY ON KEY ENGINE CRANK

COOLANT LEVEL SWITCH

BR/YL BR/WH

J1939 TERMINATION RESISTOR

BL BL/YL

SERVICE TOOL CONN E D C G F H J B A

7 8

WH YL

CAT DATA LINK CAT DATA LINK + J1939 SHIELD J1939 DATA + J1939 DATA - BAT. +BAT.

120

2 3 4 5 6 8 9 11 12 13 14 15 7 16 10 1

TO MACHINE ENGINE SENSORS

BL BL/YL

DIAGNOSTIC LAMP

DIAGNOSTIC ENABLE SWITCH

CONN G

TO OEM FUSES

TO MACHINE HARNESS

TO MACHINE HARNESS

CONN C 22 PIN 1 21 2 3 22 87A

K53 30 START RELAY

87

RD

85

F59

G

S

FUSE

5 6 8 3 7 1

START SWITCH

F34 FROM K51/87

86

FROM K13/87A

F70

MTR BAT

STARTING MOTOR

CIRCUIT BREAKER

+

GROUND STRAP

ALTERNATOR

ELECTRONIC CONTROL MODULE (ECM)

GND

BATTERY DISCONNECT SWITCH

-

+ 12V BATTERY

INLET AIR HEATER

AIR INLET GROUND STUD

INLET AIR HEATER RELAY J501/P501 1 J702/BK 2 G850/BU

Engine Coolant Temperature Sensor Inlet Air Heater Relay

Injection Actuation Pressure Control Valve (IAPCV)

Primary Engine Speed/Timing Sensor

Secondary Engine Speed/Timing Sensor

Turbo Outlet (Intake Manifold Air) Pressure Sensor Intake Manifold Air Temperature Sensor

Atmospheric Pressure Sensor

High Pressure Engine Oil Temperature Sensor (Middle)

LEFT SIDE VIEW

Oil Grade Plug

ECM Connector J2/P2

Timing Calibration (TC) Probe Connector P400

Engine Oil Pressure Sensor High Pressure Engine Oil Temperature Sensor (End)

ECM Connector J1/P1