AP-1000D, AP-1055D, AP-655C, BG-2255C, BG-2455D and BG-260D Asphalt Pavers MID 030 - CID 0263 - FMI 04 Caterpillar


MID 030 - CID 0263 - FMI 04
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Conditions Which Generate This Code:




Illustration 1g00530356

Schematic for the sensor power supply

This diagnostic code is recorded when the main display module reads the signal voltage. The voltage from the sensor is too low.

Test Step 1. CHECK THE VOLTAGE AT THE MAIN DISPLAY.

  1. Use the 7X-1710 Multimeter Probe in order to check the voltage at the connector for the main display module. Measure the voltage from contact 24 to contact 2 (ground). DO NOT disconnect the harness from the module.

Expected Result:

The voltage measures 8.0 ± 0.5 DCV.

Results:

  • YES - The voltage is 8.0 ± 0.5 DCV. The sensor supply voltage is correct. Verify that the diagnostic code exists.

    Repair: It is unlikely that the main display module has failed. Exit this procedure and perform this procedure again. Also, recheck if the diagnostic code indicator is illuminated for this diagnostic code. If the cause of the diagnostic code is not found, replace the main display module. See Troubleshooting, "Main Display Module - Replace".

    Stop.

  • NO - The voltage is NOT 8.0 ± 0.5 DCV. The sensor supply voltage is NOT correct. Proceed to test step 2.

Test Step 2. CHECK FOR A SHORT TO GROUND.

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

  1. Disconnect the machine harness from the main display module.

  1. At the machine harness connector for the main display module, measure the resistance between the frame ground and the sensor supply circuit (connector contact 24).

Expected Result:

The resistance that is measured is greater than 5000 ohms.

Results:

  • YES - The resistance is greater than 5000 ohms. The harness circuit resistance is correct. The main display module has failed.

    Repair: It is unlikely that the main display module has failed. Exit this procedure and perform this procedure again. Also, recheck if the diagnostic code indicator is illuminated for this diagnostic code. If the cause of the diagnostic code is not found, replace the main display module. See Troubleshooting, "Main Display Module - Replace".

    Stop.

  • NO - The resistance is less than 5000 ohms. The machine harness has failed. There is a short to ground in the machine harness.

    Repair: Repair the harness or replace the harness.

    Stop.

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