Deutz-Fahr 1544: NOx Sensor Value Below Lower Limit

The NOx sensor value upstream of the SCR catalyst is below the lower limit, indicating a potential issue with the sensor or the exhaust system.

1. 1

   The NOx sensor located upstream of the SCR catalyst

2. 2

   The connection and wiring of the NOx sensor

3. 3

   The exhaust system for leaks or blockages

1. 1

   Inspect

   Inspect the NOx sensor for damage, contamination, or improper installation.

2. 2

   Test

   Test the NOx sensor for proper operation using the manufacturer's recommended testing procedures.

3. 3

   Check

   Check the exhaust system for leaks, blockages, or other issues that could affect sensor readings.