Deutz-Fahr 1905: DEF Quality Sensor - Measurement Conditions Not Met

The system has detected that the conditions required for the DEF quality sensor to perform a valid measurement are not being met. This may prevent the sensor from providing accurate data about the quality of the DEF fluid.

1. 1

   The condition of the DEF quality sensor

2. 2

   The environment or operating conditions surrounding the sensor

3. 3

   The connection and wiring of the sensor