Deutz-Fahr 1905: DEF Quality Sensor Fault

The system is unable to perform a DEF quality measurement, indicating a potential issue with the DEF quality sensor. This may affect the proper monitoring of the diesel exhaust fluid quality.

1. 1

   DEF quality sensor

2. 2

   the affected circuit

1. 1

   Inspect

   Inspect the DEF quality sensor for physical damage or contamination.

2. 2

   Test

   Test the functionality of the DEF quality sensor according to the service manual.

3. 3

   Check

   Check the wiring and connections to the DEF quality sensor for any faults.