B1159

DTC B1159: Gauge Control Module Lost Communication with the Multiplex Integrated Control Unit (MICU) (Door Switch Message)

NOTE: If you are troubleshooting multiple DTC's, be sure to follow the instructions in B-CAN system diagnosis Test Mode A.

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 B1159 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) from the HDS.

Are DTCs B1057, B1105, and B1807 also indicated?

YES - Go to Multiplex Integrated Control Unit Input Test. MICU Input Test

NO - Go to Gauge Control Module Input Test. Gauge Control Module Input Test