Deutz-Fahr P131A-00: NOx Sensor (Downstream SCR) - Invalid Sensor Status

The fault code indicates that the NOx sensor located downstream of the Selective Catalytic Reduction (SCR) system is reporting an invalid status. This may affect the proper monitoring of exhaust emissions and the operation of the emission control system.

1. 1

   The NOx sensor (downstream SCR) for physical damage or contamination

2. 2

   The wiring and connections to the NOx sensor (downstream SCR) for integrity

3. 3

   The functionality of the NOx sensor (downstream SCR) using diagnostic tools

1. 1

   Inspect the NOx sensor (downstream SCR)

   Check for visible damage, contamination, or wear on the NOx sensor (downstream SCR).

2. 2

   Check the wiring and connections

   Verify that the wiring and electrical connections to the NOx sensor (downstream SCR) are intact and properly secured.

3. 3

   Test the NOx sensor (downstream SCR)

   Use appropriate diagnostic equipment to test the functionality of the NOx sensor (downstream SCR).