P0563 — System Voltage High
Reviewed1 source
1 source
- Official data (NHTSA)official_feed
What P0563 means
Caution — monitor closely
The ECU detects onboard voltage above normal — most often a faulty alternator voltage regulator.
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General information, not a diagnosis or repair instruction. Always confirm with a qualified mechanic for your specific vehicle.
Common causes
- Faulty alternator voltage regulator
Symptoms
- Bulbs burning out
- Повышенный расход топлива
- Rapid battery wear
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