JCB U059F-02: CAN bus message error for NO2 level from downstream NOx sensor (module number 2)

The system has detected a CAN bus message error related to the NO2 level from the downstream NOx sensor. This indicates a communication issue with the sensor or its associated circuit.

1. 1

   The communication link between the downstream NOx sensor and the controller

2. 2

   The wiring and connections associated with the downstream NOx sensor

3. 3

   The functionality of the downstream NOx sensor itself

1. 1

   Inspect

   Inspect the wiring and connections for the downstream NOx sensor for damage, corrosion, or loose connections.

2. 2

   Test

   Test the downstream NOx sensor for proper operation using the appropriate diagnostic tools.

3. 3

   Verify

   Verify the communication between the downstream NOx sensor and the controller using the service manual procedures.