B1156

DTC B1155: Gauge Control Module Lost Communication with the Combination Switch Control Unit (HLSW Message)

DTC B1156: Gauge Control Module Lost Communication with the 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 or more.
4. Check for DTCs with the HDS.

Are DTCs B1155 and/or B1156 indicated?

YES - Go to step 5.

NO - Intermittent failure. The gauge control module is OK at this time. Check for loose or poor connections.

5. Check for DTCs with the HDS.

Are DTCs B1007, B1062, and B1063 also indicated?

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

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