Deutz-Fahr 135: Calibration Message 2 from Pre-Cat Nox Sensor Failed

The calibration message 2 from the pre-cat Nox sensor has failed, indicating an issue with the communication or functionality of the sensor during the calibration process.

1. 1

   The pre-cat Nox sensor for proper connection and physical integrity

2. 2

   The communication link between the pre-cat Nox sensor and the controller

3. 3

   The sensor's internal calibration process

1. 1

   Inspect

   Inspect the pre-cat Nox sensor for visible damage or loose connections.

2. 2

   Test

   Test the communication between the pre-cat Nox sensor and the controller using the appropriate diagnostic tool.

3. 3

   Reset

   Attempt to reset the calibration process for the pre-cat Nox sensor as per the service manual.