B1011

DTC Troubleshooting: 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 Troubleshooting - B-CAN System Diagnosis Test Mode A.
- Before troubleshooting, check the No. 1 (15 A) and No. 22 (7.5 A) fuse in the under-dash fuse/relay box.

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 DTCs 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 of the gauge control module 32P connector and at under-dash fuse/relay box connector Q (16P). If the connections are good, check the 12 volt battery condition 12 Volt Battery Test and the charging system.�

5. Check for DTCs with the HDS.

Are DTCs B1000 and B1011 all indicated?

YES -

Check for an open in the communication circuit between the MICU and the gauge control module.
If the circuit is faulty, repair the open. If the circuit is OK, faulty MICU, replace the under-dash fuse/relay box.�

- USA models Under-Dash Fuse/Relay Box Removal And Installation (Except Canada Models)
- Canada models Under-Dash Fuse/Relay Box Removal And Installation (Canada Models)

NO -

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