Deutz-Fahr 129: Pre-Cat Nox Sensor Message Length Mismatch

The message length of the pre-cat Nox sensor does not match the specification. This results in a DLC CAN receive message error, indicating an issue with the communication from the Nox Sensor (SCR system before catalyst; DPF system after catalyst).

1. 1

   The communication between the Nox Sensor (SCR system before catalyst; DPF system after catalyst) and the controller

2. 2

   The wiring and connections related to the Nox Sensor (SCR system before catalyst; DPF system after catalyst)

3. 3

   The integrity of the DLC CAN message being received from the Nox Sensor (SCR system before catalyst; DPF system after catalyst)

1. 1

   Inspect the wiring and connections

   Check the wiring and connections associated with the Nox Sensor (SCR system before catalyst; DPF system after catalyst) for damage, corrosion, or loose contacts.

2. 2

   Verify the sensor signal

   Use a diagnostic tool to verify the signal being sent by the Nox Sensor (SCR system before catalyst; DPF system after catalyst) and ensure it matches the expected message length.

3. 3

   Test the communication interface

   Test the DLC CAN communication interface to ensure it is functioning properly and receiving the correct message length from the Nox Sensor (SCR system before catalyst; DPF system after catalyst).