Powertrain
generic / SAE
P2E91
Battery Charger B Internal Power Supply Performance
The internal low-voltage power supply of battery charger B does not maintain the expected output. Internal regulator drift or overload.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberE / 91
Possible causes
- Internal regulator drifted high
- Internal load increased medium
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 400–2500 €
- Estimated time: 2–8 h
- Component: battery charger b internal psu
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012