Powertrain
generic / SAE
P0A77
Generator Phase W Current High
Phase W current of the generator exceeds the expected window. Indicates phase short or stalled rotor.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / numberA / 77
Possible causes
- Short between motor phases high
- Rotor stalled - high stall current medium
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 800–5000 €
- Estimated time: 3–16 h
- Component: generator phase w
- Component: inverter
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012