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 0324 FMI 05 Lamp (Action) Current Below Normal - Test

Usage:

793B 1HL
This diagnostic code is recorded when the VIMS module reads the current of the action lamp circuit (411-PK(Pink)) and the current is below normal. The circuit is open. The action lamp does not light when this diagnostic code is active..

  1. CHECK THE LAMP.

    1. At the action lamp, use a jumper to connect wire 411-PK(Pink) to frame ground.

      Expected Result: The CID 0324 FMI 05 fault is no longer active.

      Results:

      • OK - The diagnostic code is no longer active. The lamp or the lamp socket are open. Replace the action lamp. For the purposes of this procedure, the correct resistance for a lamp is less than 200 ohms. STOP.

      • NOT OK - The diagnostic code is still active. The action lamp is not causing the fault. Proceed to 2.

  2. CHECK THE HARNESS.

    1. Turn the disconnect switch and the key start switch to the OFF position.

    2. Remove the jumper wire from wire 411-PK(Pink) and frame ground. Connect the action lamp to the machine harness.

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

    4. At the machine harness connector for the VIMS module, measure the resistance between contact 20 (411-PK(Pink)) and frame ground.

      Expected Result: The resistance is greater than 100 ohms.

      Results:

      • OK - The resistance is greater than 100 ohms. The harness circuit is open. Proceed to 3.

      • NOT OK - The resistance is less than 100 ohms. The harness circuit resistance is correct. Replace the VIMS main module. Refer to the Testing and Adjusting, "Module - Replace" section. STOP.

  3. CHECK THE HARNESS.

    1. Disconnect the wire 411-PK(Pink) from the action lamp socket.

    2. Check for an open in the circuit 411-PK(Pink) between contact 20 of the VIMS main module harness connector and the lamp socket.

    3. Measure the resistance in the circuit 201-BK(Black) between the lamp socket and the frame ground.

      Expected Result: The resistance is less than 5 ohms.

      Results:

      • OK - Resistance is less than 5 ohms. The circuit is correct. The fault is intermittent. The probable cause is a poor electrical connection at the harness connectors or a damaged harness. Check the harness for damage and clean the harness connectors, as required. STOP.

      • NOT OK - Resistance is greater than 5 ohms. The circuit is NOT correct. Repair the harness or replace the harness. STOP.

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