B2105

DTC Troubleshooting: B2105

DTC B2105:

Adaptive Front-Lighting Control Unit Lost Communication With Gauge Control Module (STEERING Message)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A Troubleshooting - B-CAN System Diagnosis Test Mode A.

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Wait for at least 6 seconds.

4. Check for DTCs with the HDS.

Is DTC B2105 indicated?

YES -

Go to step 5.

NO -

Intermittent failure, the system is OK at this time. Check for loose or poor connections.�

5. Check for DTCs with the HDS.

Are DTCs B2106, B2107, and B2108 also indicated?

YES -

Replace the adaptive front lighting control unit, and do the adaptive front lighting control unit learning procedure Adaptive Front Lighting Control Unit Learning Procedure.�

NO -

Do the gauge control module input test Gauge Control Module Input Test.�