JCB P2201-11: Lambda Signal Below Minimum Limit for Downstream NOx Sensor

The lambda signal from the downstream NOx sensor is below the minimum acceptable limit, indicating a potential issue with the sensor or its circuit.

1. 1

   the downstream NOx sensor

2. 2

   the wiring and connections to the downstream NOx sensor

3. 3

   the component identified by this code

1. 1

   Inspect

   Inspect the downstream NOx sensor for physical damage or contamination.

2. 2

   Test

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

3. 3

   Check

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