U0311

DTC Troubleshooting: U0311 (123)

DTC U0311 (123):

MCM and BCM Program Version Mismatch

NOTE:

- Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information Initial Inspection and Diagnostic Overview.
- This DTC is indicated when a MCM update is not completed.
- Do not turn the ignition switch to ACCESSORY (l) or to LOCK (0) while updating the MCM. If you do, the MCM can be damaged.

1. Do the MCM (IMA Motor) update procedure Testing and Inspection.

2. Check for Pending or Confirmed DTCs with the HDS.

Is DTC U0311 (123) indicated?

YES -

Replace the original MCM Service and Repair.�

NO -

Update is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.�