DTC P1261 Chevrolet
BCM, MCM and PGM-FI System Program Version Mismatch
BCM, MCM and PGM-FI System Program Version Mismatch
Description
NOTE: Before you troubleshoot, record all freeze data, and any on-board snapshot, and review the general troubleshooting information. This DTC is indicated when a MCM update is not completed. WARNING: Do not turn the ignition switch to LOCK (0) while updating the MCM. If you do, the MCM can be damaged.
Cause and Solution
Do the MCM (IMA Battery) update procedure Faulty MCM
Video Guide
Diagnostic Info
- DTC Code: P1261
- Brand: Chevrolet