416E, 420E and 430E Backhoe Loaders MID 053 - CID 0871 - FMI 02 Caterpillar

Conditions Which Generate This Code:

Illustration 1	g02116814
Schematic of the Inclination Sensor

This diagnostic code is generated when the "Advisor " ECM receives a faulty signal from the "Inclination"sensor.

Possible causes of this diagnostic code are listed:

• A component that is internal to the sensor has failed.

• The diagnostic code is displayed as a logged code.

System Response:

The "gauge parameter"for the slope of the machine and the side slope of the machine is displayed as "Data Intermittent" on the "AVSpare ET Diagnostic"screen.

Note: The performance of the sensor has degraded enough that the gauge parameters for the slope of the machine and the side slope of the machine will be unavailable.

Test Step 1. CHECK THE HARNESS CODE

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

2. Disconnect the machine harness from the control module.

3. Measure the continuity from contact C to frame ground. Measure the continuity from contactD to frame ground.

Expected Result:

There is NOT continuity.

Results:

• YES - There is NOT continuity. The circuitry for the harness has failed.

  Repair: Repair the harness or replace the harness. Clear the diagnostic code.

  STOP

• NO - There is continuity. The circuitry for the harness is functioning correctly.

  Repair: The "Advisor Display" ECM may have failed. This is unlikely.

  Proceed to Test Step 2.

Test Step 2. CHECK IF THE DIAGNOSTIC CODE REMAINS.

1. Clean all contacts of the harness connectors for the sensor circuit.

2. Reconnect all harness connectors.

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

4. Operate the machine.

5. Clear the diagnostic code for the sensor.

6. Check the status of CID 0871 FMI 02 diagnostic code.

Expected Result:

The diagnostic code is no longer active.

Results:

• YES - The diagnostic code is no longer active. The diagnostic code does not exist at this time. The initial diagnostic code was probably caused by a poor electrical connection or a short at one of the harness connectors that was disconnected and reconnected. Resume normal machine operation.STOP

• NO - The diagnostic code remains active. The sensor has failed.

  Repair: Replace the sensor.

  STOP