B2105

DTC B2105: Adaptive Front Lighting Control Unit Lost Communication with Gauge Control Module (STEERING Message)

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Wait for 6 seconds or more.
4. Check for DTCs with the HDS.

Is DTC B2105 indicated?

YES - Go to step 5.

NO - Intermittent failure, the adaptive front lighting system is OK at this time. Check for loose or poor connections at the gauge control module connector and at the adaptive front lighting control unit connector.

5. Check for DTCs with the HDS.

Are DTCs B2106, B2107, and B2108 also indicated?

YES - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure.

NO - Go to the gauge control module input test. Gauge Control Module Input Test