John Deere 003251.04: Low Voltage from DPF Pressure Differential Sensor

The Engine Control Unit (ECU) detects a low voltage signal from the DPF Pressure Differential Sensor. This indicates an issue with the sensor's ability to provide a proper voltage output, which may affect the monitoring of the diesel particulate filter system.

1. 1

   The wiring and connections to the DPF Pressure Differential Sensor

2. 2

   The power supply to the DPF Pressure Differential Sensor

3. 3

   The DPF Pressure Differential Sensor itself for damage or malfunction

1. 1

   Inspect

   Check the wiring and connections to the DPF Pressure Differential Sensor for damage, corrosion, or loose connections.

2. 2

   Test

   Verify the power supply to the DPF Pressure Differential Sensor using a multimeter or appropriate testing equipment.

3. 3

   Replace

   If the sensor is found to be faulty, replace it with a new or verified functional DPF Pressure Differential Sensor.