Powertrain
generic / SAE
P0626
Generator Field/F Terminal Circuit Performance
The generator field circuit response does not match command. Field current ramps slowly, drifts or fails to reach commanded values during regulation.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number6 / 26
Possible causes
- Regulator or rotor fault high
- Field circuit high resistance medium
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: medium
- DIY: shop recommended
- Estimated cost: 200–800 €
- Estimated time: 0.8–2.5 h
- Component: alternator
- Component: alternator wiring
- MIL / check engine light
Sources
References
sae:J2012