What does code P0562 mean on a Ford and is it safe to drive?
P0562: System Voltage Low. Here's what it means on your Ford, what usually causes it, what repairs typically cost, and how safe it is to keep driving.
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What this code means
The PCM has detected that system voltage is below the acceptable threshold. Usually points to a failing battery, alternator, or a poor ground connection.
Common causes for your Ford
- Weak or failing battery
- Failing alternator not producing sufficient output
- Poor battery cable or ground connections
- Parasitic draw draining the battery
Symptoms
- Check Engine Light
- Dim headlights
- Electrical accessories acting erratically
- Hard starting or slow cranking
Typical fixes
- Load-test battery and replace if weak
- Test alternator output and replace if low
- Clean battery terminals and ground connections
Repair cost range
For a Ford, repairs for P0562 often fall between $100 and $500, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Ford
Ford P0562 often comes from a failing alternator or battery. On dual-battery F-250/F-350 diesel trucks, check voltage balance between both batteries. Under 13.5V at idle from the alternator indicates insufficient charging.
Most commonly affected models
F-150 2004–2014Explorer 2002–2010Mustang 2005–2009