B1011

DTC B1011: MICU Lost Communication with Gauge Control Module (VSP/NE 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 or more.
4. Check for DTCs with the HDS.

Is DTC B1011 indicated?

YES - Go to step 5.

NO - Intermittent failure, the gauge control module is OK at this time. Check for loose or poor connections at gauge control module (tach) 36P connector and at under-dash fuse/relay box connector Q (16P). If the connections are good, check the battery condition and the charging system.

5. Check for DTCs with the HDS.

Are DTCs B1008 and B1032 also indicated with DTCB1011?

YES - Check for an open in the communication circuit between the MICU and the gauge control module (tach). If the circuit is bad, repair the open.

NO - Go to the gauge control module (tach) input test. Gauge Control Module (Tach) Input Test