B1063

DTC B1063: Relay Control Module Lost Communication with Combination Switch Control Unit (Wiper switch message)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in 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 6 seconds or more.
4. Check for DTCs with the HDS.

Is DTC B1063 indicated?

YES - Go to step 5.

NO - Intermittent failure, the communication line is OK at this time.

5. Check for DTCs with the HDS.

Are DTCs B1156, and B1958 also indicated?

YES - Go to combination switch control unit input test. Combination Switch Control Unit Input Test

NO - Go to relay control module input test. Relay Control Module Input Test