Electrical Component and Connector Locations
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| Illustration 1 | g01193942 |
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Component Location (1) Service Tool Connector (2) Transmission ECM | |
The location of the service tool connector and the location of the ECM will vary with different Original Equipment Manufacturers.
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| Illustration 2 | g01194004 |
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The laptop computer is connected to the diagnostic connector. | |
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| Illustration 3 | g01193980 |
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Transmission ECM (1) Connector J1 (2) Connector J2 (3) Screw | |
To remove the machine harness from the ECM, use screw (3) in the center of the harness connector.
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| Illustration 4 | g00554751 |
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ECM Connector Pin Numbers | |
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| Illustration 5 | g00556522 |
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ECM Connector Pin Numbers | |
Caterpillar Information System:
Caterpillar On-Highway Diesel Engine Fluids Recommendations Characteristics of Diesel Fuel
2005/08/15 An Improved Idler Pulley Has Been Released {1358}
3412E Petroleum Engine Crankcase Breather - Remove and Install
2005/08/01 An Improved Idler Pulley Has Been Released {1358}
C7.1 Engines for Caterpillar Built Machines Engine Valve Lash - Inspect/Adjust
C27 and C32 Engines for Caterpillar Built Machines CID 0174 FMI 03 Fuel Temperature open/short to +batt
345C MHPU Mobile Hydraulic Power Unit Engine Supplement Engine Mount - Install - Rear
TH48-E80 Petroleum Transmission Power Train Electronic Control System MID 027 - CID 0826 - FMI 04
324D, 325D, 326D and 329D Excavators and 329D MHPU Mobile Hydraulic Power Unit Machine Systems Selector Valve (Alternate Pattern Control) - Assemble
324D, 325D, 326D and 329D Excavators and 329D MHPU Mobile Hydraulic Power Unit Machine Systems Selector Valve (Alternate Pattern Control) - Disassemble
3412E Petroleum Engine Front Cover - Install
C4.4 and C6.6 Industrial Engines and Engines for Caterpillar Built Machines Throttle Switch Circuit - Test
C4.4 and C6.6 Industrial Engines and Engines for Caterpillar Built Machines Fuel Rail Pump Solenoid - Test
C13, C15, and C18 Tier 4 Final Engines Electric Starting Motor
TH48-E80 Petroleum Transmission Power Train Electronic Control System Diagnostic Capabilities
TH48-E80 Petroleum Transmission Power Train Electronic Control System Diagnostic Code List
3126B Generator Set Engine Engine Pressure Sensor Open or Short Circuit - Test
770 and 772 Off-Highway Truck Chassis Electronic Control System Starting System
TH48-E80 Petroleum Transmission Power Train Electronic Control System Position Sensor (Transmission Gear) - Check
3412E Petroleum Engine Engine Oil Pan - Remove and Install
3126B Generator Set Engine Engine Temperature Sensor Open or Short Circuit - Test
3412E Petroleum Engine Cylinder Liner - Install
3608 Engine Crankshaft Position for Fuel Timing and Valve Lash Adjustment
3406C Engines for Caterpillar Built Machines Engine Oil Pump