OBD · Charging and power supply
P0563 System voltage high
What this code means
P0563 is a generic OBD code shared by all manufacturers since 2001 for petrol and 2004 for diesel. It relates to: charging and power supply. The code tells you what the ECU measured as abnormal, not necessarily which part to replace.
Most common causes
- Alternator not charging#1
With the engine running, battery voltage should read 13.8 to 14.7 V. Below that, the alternator is not charging.
Cost of related repairs
| Independent garage | Main dealer | |
|---|---|---|
| Alternator | £255 – £640 | £330 – £965 |
How to read this code
An OBD scanner plugged into the 16-pin socket under the steering wheel reads and clears codes. Bluetooth models cost £20 to £40. Clearing a code without fixing the fault is pointless: it comes back.
Related problems
Frequently asked questions
What does code P0563 mean?
P0563: System voltage high. P0563 is a generic OBD code shared by all manufacturers since 2001 for petrol and 2004 for diesel. It relates to: charging and power supply. The code tells you what the ECU measured as abnormal, not necessarily which part to replace.
Can I drive with code P0563?
Fix soon. Drive gently and as little as possible. The fault can get worse and damage other parts.
How much does it cost to fix P0563?
Alternator: £255 – £640.
How to read this code
An OBD scanner plugged into the 16-pin socket under the steering wheel reads and clears codes. Bluetooth models cost £20 to £40. Clearing a code without fixing the fault is pointless: it comes back.