B1156

DTC B1156: Gauge Control Module Lost Communication (Wiper Switch Message) with the Combination Switch Control Unit

1. Clear the DTCs using the HDS.
2. Cycle the ignition switch to OFF, and then back ON.
3. Check for DTCs by selecting the DTCs MENU (DTCs) from the HDS.

Is DTC B1156 indicated?

YES - Go to step 4.

NO - Intermittent failure. The gauge control system is OK at this time. Check pinfits and connections.

4. Check for DTCs by selecting the DTCs MENU (DTCs) of the HDS.

Is DTC B1009 or 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