HOUSING-FINAL DRIVE 2916874 - Caterpillar

Illustration 1 g00682625
Schematic of the Payload Lamps
This diagnostic code is recorded when the VIMS electronic control module reads the voltage of the red payload lamp circuit (wire 635-BU(Blue)) and the voltage is above normal. The red payload lamps are ON CONTINUOUSLY as a result of this condition.Test Step 1. CHECK THE LAMP CIRCUIT.
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect the machine harness from the VIMS electronic control module.
While you observe the red payload lamps, turn the disconnect switch and the key start switch to the ON position. Expected Result:The red payload lamps turn ON.Results:
OK - The red payload lamps turn ON. The harness circuit (wire 635-BU(Blue)) is shorted to the +battery. Repair: Repair the machine harness or replace the machine harness.STOP
NOT OK - The red payload lamps are OFF. The VIMS electronic control module has failed. Repair: Replace the VIMS electronic control module. Refer to the Testing and Adjusting, "Module - Replace" section.STOP