B1180

DTC Troubleshooting: B1157, B1180

DTC B1157:

Gauge Control Module Lost Communication With MICU (MICU Message)

DTC B1180:

Gauge Control Module Lost Communication With MICU (AUTOLT 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 B1157 and/or B1180 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 MICU.�

5. Check for DTCs with the HDS.

Are DTCs B1055, B1056, B1255, B1806, B2107, and/or B2155 also indicated?

YES -

Do the MICU input test MICU Input Test.�

NO -

Do the gauge control module input test Gauge Control Module Input Test.�