B1156

DTC Troubleshooting: B1155, B1156

DTC B1155:

Gauge Control Module Lost Communication With Combination Switch Control Unit (HLSW Message)

DTC B1156:

Gauge 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 Troubleshooting - 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 at least 6 seconds.

4. Check for DTCs with the HDS.

Is DTC B1155 and/or B1156 indicated?

YES -

Go to step 5.

NO -

Intermittent failure, the system is OK at this time. Check for loose or poor connections between the gauge control module and combination switch control unit.

5. Check for DTCs with the HDS.

Are DTCs B1007, B1062, B1063, and/or B2108 also indicated?

YES -

Do the combination switch control unit input test Wiper/Washer Switch (Combination Switch Control Unit) Input Test.

NO -

Do the gauge control module input test Component Tests and General Diagnostics.