OBD-II code · Powertrain (generic)
P062F Internal Control Module EEPROM Error
The ECU's EEPROM (persistent calibration storage) reports a check-sum or write error. Calibration values may be corrupted - the ECU runs on safe defaults until repair.
Is it safe to drive with P062F?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyEEPROM check-sum failure
Symptoms
- Check engine light on
- Possible limp mode or no-start
- Multiple follow-up faults across modules
- Reset/relearn may be needed after repair
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Usually unaffected
- Parts involved
- Ecu Eeprom
Related codes
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.