854G and 854K Wheel Dozers and 992G, 992K and 994F Wheel Loaders VIMSTM MID 049 - CID 0890 - FMI 09 Caterpillar


MID 049 - CID 0890 - FMI 09
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MID 049 CID 0890 FMI 09

Conditions Which Generate This Code:

This diagnostic code is recorded when data link communication with the VIMS electronic control module has been broken for more than 5 seconds.

Test Step 1. VERIFY THAT THE BROADCAST SYSTEM IS FUNCTIONING CORRECTLY.

  1. Verify that the broadcast system (transmitter) is operating correctly.

Expected Result:

The broadcast system (transmitter) is operating correctly.

Results:

  • YES - The broadcast system (transmitter) is operating correctly. proceed to test step 2.

  • NO - The broadcast system (transmitter) is NOT operating correctly.

    Repair: Repair the broadcast system.

    STOP

Test Step 2. CHECK FOR AN OPEN IN THE MACHINE HARNESS

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

  2. Disconnect connector J2 from the VIMS electronoic control module.

  3. Disconnect the connector from the telemetry system.

  4. Measure the resistance of the circuits that are listed below:

    • Measure the resistance between contact 4 (wire F418-GN(Green)) of the VIMS Telemetry and contact J2-32 (wire F418-GN(Green)) of the VIMS electronic control module.

    • Measure the resistance between contact 3 (wire F419-YL(Yellow)) of the VIMS Telemetry and contact J2-33 (wire F419-YL(Yellow)) of the VIMS electronic control module.

Expected Result:

All the measurements are less than 5.0 ohms.

Results:

  • OK - All the measurements are less than 5.0 ohms. proceed to test step 3.

  • NOT OK - All the measurements are greater than 5000 ohms. The machine harness has failed.

    Repair: Repair the machine harness or replace the machine harness.

    STOP

Test Step 3. CHECK THE MACHINE HARNESS FOR A SHORT TO GROUND.

  1. The machine harness remains disconnected from the VIMS electronic control module and the Telemetry system.

  2. Measure the resistance of the circuits that are listed below:

    • Measure the resistance between contact J2-32 (wire F418-GN(Green)) of the VIMS ECM and frame ground.

    • Measure the resistance between contact J2-33 (wire F419-YL(Yellow)) of the VIMS ECM and frame ground.

Expected Result:

All the measurements are greater than 5000 ohms.

Results:

  • OK - All the measurements are greater than 5000 ohms. The machine harness is correct. The VIMS electronic control module has failed.

    Repair: It is unlikely that the VIMS electronic control module has failed. Exit this procedure and perform this procedure again. If the failure is not found, replace the VIMS electronic control module. Refer to the Testing and Adjusting, "Module-Replace " section.

    STOP

  • NOT OK - All the measurements are less than 5000 ohms. The machine harness has failed.

    Repair: Repair the machine harness or replace the machine harness.

    STOP

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