P06EFEngine Restart Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- How the car detects it
- P06EF concerns the automatic restart after the system itself has stopped the engine – stop-start or hybrid. The restart, by starter, reinforced stop-start starter or belt starter-generator, takes too long or fails. CARB does not count such a commanded shutdown as a stall. No manufacturer publishes the time limit. VW's Tiguan bulletins list P06EF together with P06E9 and trace both to dirt inside the starter; FCA fixes it on the 2019 Jeep Wrangler with engine-module software and lights the check engine light. Stop-start is then disabled. Besides the starter, a weak stop-start battery or fuel and ignition problems at restart can be the cause.
- What you may notice
- Engine does not restart or restarts late after stop-start
- Stop-start disabled
- Check engine light (FCA)
- Likely causes
- LikelyStarter or starter-generator worn, contacts intermittently open
- PossibleEngine module software
- PossibleWeak stop-start battery (AGM/EFB) or battery sensor
- RareFuel pressure or ignition at restart
- Repair
- Medium · Often possible to do yourself.Typical cost: €50 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.