PULLER G 6V3010 - Caterpillar

Illustration 1 g00684154
Schematic of the Left Front Brake Oil Temperature Sensor
This diagnostic code is recorded when the VIMS electronic control module reads the sensor signal and the voltage is too low. The possible causes of this failure are listed below:
The sensor has failed.
The signal circuit is shorted to ground.
The VIMS electronic control module has failed.Test Step 1. CHECK THE SENSOR.
Turn the disconnect switch and the key start switch to the ON position.
Disconnect the machine harness from the sensor. Expected Result:The diagnostic code changes from CID 0853 FMI 04 to CID 0853 FMI 03. Results:
OK - The diagnostic code changes from CID 0853 FMI 04 to CID 0853 FMI 03. The failure is no longer present. The sensor has failed.Repair: Perform the Testing and Adjusting, "Pulse Width Modulated (PWM) Sensor - Test" procedure prior to replacing the sensor. STOP
NOT OK - The diagnostic code CID 0853 FMI 04 is still active. Proceed to test step 2.Test Step 2. CHECK THE HARNESS.
The sensor remains disconnected from the machine harness.
Turn the key start switch and the disconnect switch to the OFF position.
At the harness connector for the sensor, measure the resistance between the signal contact C (wire C466-YL(Yellow)) and frame ground. Expected Result:The resistance is greater than 5000 ohms. STOP. Results:
OK - The resistance is greater than 5000 ohms. The harness circuit resistance is correct. Repair: The VIMS electronic control module has failed. It is unlikely that the VIMS electronic control module has failed. Exit this procedure and perform this procedure again. If the fault is not found, replace the VIMS electronic control module. Refer to the Testing and Adjusting, "Module - Replace".STOP
NOT OK - The resistance is less than 5000 ohms. The machine harness has failed. There is a short between frame ground and the signal circuit in the machine harness.Repair: Repair the machine harness or replace the machine harness. STOP