Electrical Schematic
Simplified electrical schematics for the transmission electronic control module are shown below. These simplified schematics are electrically correct, but the schematics do not show all possible harness connectors. These simplified schematics are shown for reference. For troubleshooting, see the complete schematic.
ReferenceSee Electrical Schematic, RENR9764 for the complete electrical schematic of the 938H and the IT38H.
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| Illustration 1 | g01446253 |
Connections of the "J1" connector | |
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| Illustration 2 | g01446262 |
Connections of the "J2" connector | |
Caterpillar Information System:
938H Wheel Loader and IT38H Integrated Toolcarrier Power Train Location of Electrical Components
938H Wheel Loader and IT38H Integrated Toolcarrier Power Train Electrical Output Components
938H Wheel Loader and IT38H Integrated Toolcarrier Power Train Electrical Input Components
993K Wheel Loader Rear Access Egress System Oil Level - Check - If Equipped
IT38H Integrated Toolcarrier and 938H Wheel Loader Braking System - Test
993K Wheel Loader Rear Access Egress System Oil - Change - If Equipped
993K Wheel Loader Rear Access Egress System Oil Filter - Replace - If Equipped
993K Wheel Loader Rear Access Egress System Bearings - Lubricate - If Equipped
2007/12/03 New Hardware for Bolted Joint on the Lower Elevator {6241}
993K Wheel Loader Rear Access Egress System Alarm - Test - If Equipped
C27 and C32 Engines for Caterpillar Built Machines Engine Oil Pan
992K Wheel Loader and 854K Wheel Dozer Power Train Temperature Sensor (Transmission Sump Oil)
993K Wheel Loader Rear Access Egress System Oil Sample - Obtain - If Equipped
IT38H Integrated Toolcarrier and 938H Wheel Loader Fuel System - Prime
992K Wheel Loader and 854K Wheel Dozer Power Train Relief Valve (Torque Converter Outlet) - Remove
992K Wheel Loader and 854K Wheel Dozer Power Train Relief Valve (Torque Converter Outlet) - Disassemble
992K Wheel Loader and 854K Wheel Dozer Power Train Relief Valve (Torque Converter Outlet) - Assemble
992K Wheel Loader and 854K Wheel Dozer Power Train Relief Valve (Torque Converter Outlet) - Install
994F Wheel Loader Machine Systems Selector Valve (Hydraulic) - Remove
994F Wheel Loader Machine Systems Selector Valve (Hydraulic) - Install
2008/04/28 Correction to Systems Operation Troubleshooting Testing and Adjusting , "MID 027 - CID 0444 - FMI 03" {1426}
2007/12/10 Correction to Systems Operation Troubleshooting Testing and Adjusting , "MID 027 - CID 0444 - FMI 05" {1426, 5479}
2007/12/10 Correction to Systems Operation Troubleshooting Testing and Adjusting , "MID 027 - CID 0444 - FMI 06" {1426, 5479}
854K Wheel Dozer Hydraulic System Oil Filter (Implement Pilot)