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

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 (wire E709-WH(White)) and the voltage is below normal. The service indicator lamp does not light when this failure is present.

1. CHECK THE LAMP.

   1. At the service indicator lamp, disconnect the signal wire (E709-WH(White)) from the service lamp socket.

      Expected Result: The service code CID 0823 FMI 06 is still active.

      Results:

      • OK - The diagnostic code is still active. The service indicator lamp is not causing the failure. Proceed to 2.

      • NOT OK - The diagnostic code is NO longer active. The lamp or the lamp socket have failed. Replace the service indicator lamp. For the purposes of this procedure, the correct resistance for a lamp is greater than 10 ohms. STOP.

2. CHECK THE HARNESS.

   1. Turn the disconnect switch to the OFF position.

   2. Wire E709-WH(White) remains disconnected from the service indicator lamp.

   3. Disconnect the machine harness from the VIMS main module.

   4. At the machine harness connector for the VIMS main module, measure the resistance between contact 21 (wire E709-WH(White)) and frame ground.

      Expected Result: The resistance is greater than 5000 ohms.

      Results:

      • OK - The resistance is greater than 5000 ohms. The harness resistance is correct. Proceed to 3.

      • NOT OK - The resistance is less than 5000 ohms. The harness has failed. Repair the machine harness or replace the machine harness. STOP.

3. CHECK THE MODULE.

   1. Remove contact 21 (wire E709-WH(White)) from the machine harness connector for the VIMS main module.

   2. Reconnect the harness connector to the VIMS main module.

   3. Turn the disconnect switch and the key start switches to the ON position.

      Expected Result: The diagnostic code CID 0823 FMI 06 is still active.

      Results:

      • OK - The fault remains active. The VIMS module has failed. Replace the module. Refer to the Testing and Adjusting, "Module - Replace" section. STOP.

      • NOT OK - The diagnostic code is NOT active. The VIMS module is not causing the failure. The failure is intermittent. The probable cause is a poor electrical connection at the harness connectors or a damaged harness. Check the harness for damage. Clean the harness connectors, as required. STOP.