Powertrain
generic / SAE
P064F
Unauthorized Software or Calibration Detected
The ECU's secure boot or signature check has detected calibration data that is not signed by the manufacturer - typically appears after chip-tuning or unauthorised flash programming. The ECU may run on safe defaults or refuse to start.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number6 / 4F
Possible causes
- Unauthorized tuning software flashed high
Symptoms
- Check engine light on
- Possible limp mode or no-start
- Multiple follow-up faults across modules
- Reset/relearn may be needed after repair
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–2000 €
- Estimated time: 1–6 h
- Component: ecm
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012