JCB P2200-94: Upstream NOx Sensor Self Diagnostic Abort

The system has detected an issue with the self-diagnostic process of the upstream NOx sensor. This indicates that the sensor's internal test or monitoring function has been interrupted or failed.

1. 1

   The condition of the upstream NOx sensor

2. 2

   The wiring and connections to the upstream NOx sensor

3. 3

   The power supply to the upstream NOx sensor

1. 1

   Inspect

   Check the physical condition of the upstream NOx sensor for damage or contamination.

2. 2

   Inspect

   Examine the wiring and connectors associated with the upstream NOx sensor for wear, corrosion, or disconnection.

3. 3

   Test

   Verify the power supply and signal integrity to the upstream NOx sensor using appropriate diagnostic tools.