P0563 is a generic OBD-II trouble code that means: System Voltage – Voltage High. You can drive carefully for a short time, but have it fixed promptly. Ignoring it can reduce performance and damage other parts.
What does P0563 mean?
P0563 is a generic OBD-II trouble code that means: System Voltage – Voltage High. The engine control module (ECM) stores this code when it detects a fault related to: System Voltage.
Can I still drive?
You can drive carefully for a short time, but have it fixed promptly. Ignoring it can reduce performance and damage other parts.
Symptoms
- Check engine light is on
- Battery warning light
- Hard starting
- Engine stalls
Common causes
- Faulty alternator, voltage regulator or battery
- Damaged wiring or a loose/corroded connector
How to fix it
- Read all stored codes and freeze-frame data with an OBD-II scanner
- Test the battery and alternator (about 13.5–14.7 V with the engine running)
- Inspect the wiring and connectors for damage, corrosion or looseness
- Replace the faulty component with a quality part
- Clear the code and road-test the car to confirm the repair
Frequently asked questions
What does code P0563 mean?
P0563 is a generic OBD-II trouble code that means: System Voltage – Voltage High. The engine control module (ECM) stores this code when it detects a fault related to: System Voltage.
What causes code P0563?
The most common causes are: Faulty alternator, voltage regulator or battery; Damaged wiring or a loose/corroded connector.
How do I fix code P0563?
Start with these steps: Read all stored codes and freeze-frame data with an OBD-II scanner; Test the battery and alternator (about 13.5–14.7 V with the engine running); Inspect the wiring and connectors for damage, corrosion or looseness; Replace the faulty component with a quality part.
Is it safe to drive with code P0563?
Severity: Medium. You can drive carefully for a short time, but have it fixed promptly. Ignoring it can reduce performance and damage other parts.