Powertrain
generic / SAE
P0563
System Voltage High
Battery / charging system voltage seen by the ECU exceeds the upper threshold (typically around 16 V). Caused by a failing voltage regulator inside the alternator. Sustained over-voltage can damage other electronics.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / 63
Possible causes
- Voltage regulator failed high
- Alternator overcharging medium
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 120–800 €
- Estimated time: 0.5–3 h
- Component: alternator
- Component: voltage regulator
- MIL / check engine light
Sources
References
sae:J2012