System Voltage High
A control module detected supply voltage above its monitoring limit. Charging regulation or sensing and ground faults can create this reading; it does not automatically mean the battery is wrong. A technician must verify actual voltage before replacing components. Smart charging systems intentionally vary output, so one universal voltage cutoff cannot diagnose every vehicle, including hybrids with low-voltage converters.
Can I keep driving?
A charging warning with dimming lights, stalling, burning odor, smoke or changed steering requires a safe stop and roadside help. Do not assume the battery will last. If there are no symptoms, obtain shop guidance before driving again.
Flashing light, burning smell or smoke? Pull over safely. Danger to life: call 911.
What does this code mean for your car?
The same code can need different checks depending on the model and engine. Enter your vehicle details to find relevant sources and checks.
Symptoms
- Engine or charging warning
- Flickering lights or intermittent electrical faults
- Unusual battery or charging-area odor
Possible causes
- 1Charging regulation fault
- 2Faulty sensing wiring or ground connection
- 3Charging control or communication fault
- 4Abnormal voltage from external charging equipment
These possibilities are not ranked by frequency and do not diagnose your vehicle.
Checks you can safely do yourself
Safe checks only: engine off and cold, car on level ground.
- Save the code and freeze-frame data if your scanner offers them, without clearing anything.
- Note recent charger or jump-start use; do not touch a swollen or leaking battery or perform charging tests yourself.
When you need a shop
Have actual voltage verified against commanded charging and check sensing circuits and grounds. Burning odor, smoke or a swollen battery calls for moving away and professional help. Do not disconnect a terminal with the engine running to test an alternator.
How much does it cost?
A US repair estimate needs a diagnosis and a local shop quote.
No verified US repair quote is available for this fault. The price depends on diagnosis, vehicle, parts and local labor; request 2-3 itemized quotes.
Get 2-3 quotes
Investigate this code for my carFAQ
Can I keep driving with P0563?
A charging warning with dimming lights, stalling, burning odor, smoke or changed steering requires a safe stop and roadside help. Do not assume the battery will last. If there are no symptoms, obtain shop guidance before driving again.
What can cause P0563?
Possible causes include charging regulation fault; faulty sensing wiring or ground connection; charging control or communication fault; abnormal voltage from external charging equipment. These are diagnostic possibilities, not a confirmed diagnosis or a parts shopping list.
Does clearing the code fix the problem?
No. Clearing a code does not repair the problem or prove that no fault exists. It may erase useful evidence and reset readiness monitors. Save codes and freeze-frame data first; confirming a repair requires the vehicle-specific checks.
What if this code appears during a used-car inspection?
Arrange an independent professional pre-purchase inspection before committing. Request a complete scan, readiness status and diagnosis of the relevant system. Get written findings and a repair estimate; an unlit warning lamp does not replace inspection.
How much does a P0563 repair cost?
No verified US repair quote is available for this fault. The price depends on diagnosis, vehicle, parts and local labor; request 2-3 itemized quotes.