5130, 5130B and 5230 Excavators, 784B, 785B, 785C, 789B, 789C, 793B and 793C Off-Highway Truck/Tractors and 992G, 994 and 994D Wheel Loaders Vital Information Management System (VIMS) Caterpillar

CID 0823 FMI 03 Lamp (Service) Voltage Above Normal - Test

Usage:

793B 1HL

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Illustration 1	g00507787
Schematic of the VIMS service indicator lamp

This diagnostic code is recorded when the VIMS module reads the voltage of the service indicator lamp circuit (E709-WH(White)) and the voltage is above normal. The service indicator lamp is ON CONTINUOUSLY as a result of this fault condition.

CHECK THE LAMP CIRCUIT.
1. Turn the key start switch and the disconnect switch to the OFF position.
2. Disconnect the machine harness from the VIMS main module.
3. Turn the disconnect switch to the ON position.
4. Observe the service indicator lamp.
5. Turn the key start switch to the ON position.
  Expected Result: The service indicator lamp is ON.
  Results:
  - OK - The service indicator lamp turned ON. The harness circuit E709-WH(White) is shorted to the +battery. Repair the machine harness or replace the machine harness. STOP.
  - NOT OK - The service indicator lamp is OFF. The VIMS interface module has failed. Replace the VIMS interface module. See Testing and Adjusting, "Module - Replace". STOP.

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