JCB P2209-00: Upstream NOx Sensor Heater Not Available

The system indicates that the upstream NOx sensor heater is not available, which may affect the proper operation of the emissions control system.

1. 1

   The upstream NOx sensor heater

2. 2

   The wiring and connections to the upstream NOx sensor heater

1. 1

   Inspect

   Inspect the upstream NOx sensor heater for physical damage or signs of failure.

2. 2

   Test

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

3. 3

   Check

   Check the wiring and connections to the upstream NOx sensor heater for continuity and proper seating.