B2108

DTC B2108: Adaptive Front Lighting Control Unit Lost Communication with Combination Switch Control Unit (HLSW Message)

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and than back ON (II), and wait for 6 seconds.
3. Check for DTCs with the HDS.

Is DTC B2108 indicated?

YES - Go to step 4.

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

4. Check for other DTCs with the HDS.

Are DTCs B1007, B1062, and B1155 also indicated?

YES - Go to the Combination Switch Control Unit Input Test. Combination Switch Control Unit Input Test

NO - Faulty adaptive front lighting control unit, replace it and do the adaptive front lighting control unit learning procedure.