JCB P207F-86: DEF Concentration Message Error from Head Unit

The head unit is reporting an error related to the DEF concentration message. This indicates a problem with the communication or data integrity of the DEF concentration signal.

1. 1

   The signal path between the DEF sensor and the head unit

2. 2

   The wiring and connections associated with the DEF sensor

3. 3

   The head unit for potential software or communication issues

1. 1

   Inspect

   Inspect the wiring and connections related to the DEF sensor for damage, corrosion, or loose connections.

2. 2

   Test

   Test the signal from the DEF sensor to the head unit using a diagnostic tool to verify signal integrity.

3. 3

   Check

   Check the head unit for any software updates or communication errors that may be affecting the DEF concentration message.