Powertrain
generic / SAE
P06B8
Internal Control Module NVRAM Error
The non-volatile RAM (used for adaptive learning storage that survives key-off but is faster than EEPROM) reports a check-sum or write fault.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number6 / B8
Possible causes
- NVRAM check-sum failure 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: 400–2500 €
- Estimated time: 2–8 h
- Component: ecu nvram
- MIL / check engine light
Sources
References
sae:J2012