B1063

DTC B1063: Relay Control Module Lost Communication with Combination Switch Control Unit (WIPSW 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 OFF, and then back ON (II).
3. Wait for 6 seconds.
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.

Is DTC B1156 also indicated?

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

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