B1157

DTC Troubleshooting: B1157

DTC B1157:

Gauge Control Module Lost Communication With MICU

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 B1157 indicated?

YES -

Go to step 5.

NO -

Intermittent failure. The gauge control system is OK at this time. Check for loose or poor connections.�

5. Check for DTCs with the HDS.

Are DTCs B1055, B1106, B1255, B1355, B1556, B1806, B1955, B2005, and B2055 also indicated?

YES -

Go to MICU input test MICU Input Test.�

NO -

Go to gauge control module input test Gauge Control Module Input Test.�