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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 0819 FMI 03 Display Data Link Voltage Above Normal - Test

Usage:

793B 1HL
This failure is recorded when the VIMS main module reads the voltage of the display data link and the voltage is above normal.

  1. CHECKING THE DISPLAY MODULES

    1. Disconnect the display modules from the machine harness one at a time and reconnect the display modules from the machine harness one at a time.

    2. Check whether the fault CID 0819 FMI 03 is present.

      Expected Results: The fault CID 0819 FMI 03 remains.

      Results:

      • OK - Fault has not changed. Fault CID 0819 FMI 03 remains. Repeat this process for each module. Proceed to 2.

      • NOT OK - Failure is not displayed. Replace the module. STOP.

  2. CHECK FOR SHORT TO +BATTERY

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

    2. Disconnect the machine harness from the VIMS main module and the display modules.

    3. At the machine harness connector for the VIMS main module, measure the resistance between +battery contact 1 and the display data link circuit connector contact 26, 27 or 28 .

      Expected Results:The Resistance is greater than 5000 ohms.

      Results:

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

      • NOT OK - Resistance is less than 5000 ohms. The machine harness is faulty. The display data link is shorted to the +battery circuit. Repair the machine harness or replace the machine harness.STOP.

  3. CHECK FOR OPEN HARNESS

    1. The disconnect switch remains in the OFF position and the key start switch remains in the OFF position.

    2. All modules remain disconnected from the machine harness.

    3. Check the continuity of the display data link circuits in the machine harness. Measure the resistance from the connector of the VIMS main module to the connector for each of the display modules.

      Expected Results: There is continuity.

      Results:

      • OK - Circuit has continuity. The display data link circuit in the machine harness is correct. The VIMS main module is faulty. Replace the VIMS module. Refer to the section Testing and Adjusting, "Module-Replace". STOP.

      • NOT OK - Circuit has NO continuity. The machine harness is faulty. The display data link circuit is open in the machine harness. Repair the machine harness or replace the machine harness. STOP.

Caterpillar Information System:

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) CID 0819 FMI 02 Display Data Link Incorrect - Test
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