P0560 Code: System Voltage Malfunction
🟠 Moderate severity · drivable
Drivable short-term, but an unstable voltage can cause electrical faults, so diagnose the charging system soon.
What P0560 means
The engine computer is seeing system voltage outside the normal range. This is the general version of the more specific low (P0562) and high (P0563) voltage codes.
Symptoms
- Check engine light is on
- Dim or flickering lights
- Electrical accessories acting up
- Possible stalling
Common causes
- most common: Weak or failing battery
- common: Failing alternator
- common: Loose or corroded battery terminals
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Clean and tighten the battery terminals | Yes | $0–20 |
| Test the battery and replace it if weak | Yes | $100–250 |
| Test the alternator and replace it if failing | Mechanic | $200–500 |
Frequently asked questions
Can I drive with a P0560 code?
Short distances, yes, but the car could stall or fail to start. Get the battery and alternator tested soon.
What is the most common cause of P0560?
A weak battery or failing alternator.
How much does it cost to fix a P0560?
A battery is $100–$250; an alternator is $200–$500 installed.
Related codes
P0562
P0562 Code: System Voltage Low
P0563P0563 Code: System Voltage High
P0620P0620 Code: Generator Control Circuit Malfunction
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.