Massey Ferguson 004334.04: DEF System Pressure Sensor Voltage Low

The ECU has detected a low voltage from the DEF System Pressure Sensor. This may indicate an issue with the sensor or its associated circuit.

1. 1

   The wiring and connections to the DEF System Pressure Sensor

2. 2

   The power supply to the DEF System Pressure Sensor

3. 3

   The DEF System Pressure Sensor itself

1. 1

   Inspect

   Inspect the wiring and connections to the DEF System Pressure Sensor for damage, corrosion, or loose connections.

2. 2

   Test

   Test the power supply to the DEF System Pressure Sensor to ensure it is receiving the correct voltage.

3. 3

   Replace

   If the sensor is found to be faulty, replace the DEF System Pressure Sensor with a compatible part.