B2157

DTC B2157: Driver's MPCS Unit Lost Communication with Gauge Control Module (ILLUMI Message)

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.

1. Clear the DTCs with the HDS.
2. Turn the ignition switch OFF, and then back ON (II).
3. Wait for 6 seconds.
4. Check for DTCs with the HDS.

Is DTC B2157 indicated?

YES - Go to step 5.

NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections.

5. Check for DTCs with the HDS.

Is DTC B1207 also indicated?

YES - Go to the gauge control module input test. Gauge Control Module Input Test

NO - Go to the driver's MPCS unit input test. Driver's MPCS Unit Input Test