U0111

DTC Troubleshooting: U0111

DTC U0111:

Gauge Control Module Lost Communication With Motor Control Module (BATT 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 U0111 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 the motor control module (MCM).

5. Check for IMA system DTCs with the HDS.

Are any DTCs indicated?

YES -

Go to the indicated DTCs troubleshooting, then recheck.

NO -

Go to step 6.

6. Turn the ignition switch to LOCK (0).

7. Disconnect the gauge control module 32P connector.

8. Disconnect motor control module (MCM) connector A (31P).

9. Check for continuity between gauge control module 32P connector terminal No. 19 and No.20 and motor control module (MCM) connector A (31P) terminal No. 23 and No. 22 respectively.





Is there continuity?

YES -

Go to step 10.

NO -

Repair an open or poor connection in the wire between the motor control module (MCM) and the gauge control module.

10. Reconnect the gauge control module 32P connector and motor control module (MCM) connector A (31P).

11. Clear the DTCs with the HDS.

12. Turn the ignition switch to LOCK (0) and then back to ON (II).

13. Wait for at least 6 seconds.

14. Check for DTCs with the HDS.

Is DTC U0111 indicated?

YES -

Replace the gauge control module Service and Repair.

NO -

Replace the motor control module (MCM) Service and Repair.