Powertrain
generic / SAE
P28C2
Ion Sense Module Supply Voltage High
Supply voltage on the ion sense module is above the expected window. Charging system overvoltage or upstream regulator fault.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number8 / C2
Possible causes
- Alternator regulator drift - overvoltage high
- Supply wire shorted to B+ medium
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 100–600 €
- Estimated time: 0.5–3 h
- Component: ion sense module
- Component: wiring harness
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012