P0563
System Voltage High
P0563 is an OBD-II diagnostic trouble code meaning: System Voltage High. Common causes: generator malfunction, problems with voltage regulator. Estimated repair cost: $56–167.
Symptoms
- check engine light on
- interruptions in the operation of electrical equipment
- dim or too bright headlights
- battery discharge or overcharging
Causes
- generator malfunction
- problems with voltage regulator
- short circuit in the electrical circuit
- wiring harness damage
- ECU malfunction
How to Fix
- check the voltage at the battery terminals with the engine running
- check generator and voltage regulator
- inspect the wiring harness for damage
- check grounding and connections in the electrical system
- if necessary, replace the generator or voltage regulator
Related codes
Error P0563 by Vehicle Brand
FAQ
What does the P0563 code mean?
P0563 is an OBD-II diagnostic trouble code that indicates: System Voltage High
What causes a P0563 error code?
The most common causes of P0563 include: generator malfunction; problems with voltage regulator; short circuit in the electrical circuit; wiring harness damage.
How do I fix a P0563 diagnostic trouble code?
To fix P0563: check the voltage at the battery terminals with the engine running. check generator and voltage regulator. inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0563?
Limited driving only, diagnose soon
How much does it cost to fix P0563?
The estimated repair cost for P0563 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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