P0563

P0563 means: System Voltage High. Battery/system voltage is above normal threshold.

System Voltage High

Battery/system voltage is above normal threshold.

SeverityModerate

CategoryElectrical

Est. Repair Cost$150–$600

Code TypePowertrain

DIY RepairYes

💡 Pro Tip: Voltage above 15V will overcharge the battery and damage electronics — address immediately.

Full Repair Estimate

$150–$600

DIY Possible?

YES

Severity

Moderate

What does OBD2 code P0563 mean?+

P0563 stands for System Voltage High. Battery/system voltage is above normal threshold.

What causes code P0563?+

Faulty voltage regulator in alternator; Short to power in charging circuit; Failed ECM; Incorrect battery installation

How do I fix code P0563?+

Test alternator output voltage (should not exceed 14.8V); Replace alternator with faulty regulator; Check charging system wiring; Test battery

How much does it cost to fix P0563?+

Estimated repair cost for P0563 is $150–$600.

Is P0563 DIY-friendly?+

Yes — P0563 is generally DIY-friendly with basic tools.