DTC Troubleshooting

DTC Troubleshooting: U0312 (124)

DTC U0312:

BCM, MCM and PGM-FI System 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 Battery) update procedure Testing and Inspection.

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

Is DTC U0312 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.