P0562
Medium SeveritySystem Voltage Low
Electrical System
What Does P0562 Mean?
Battery/charging system voltage is below normal operating range.
Common Fix
Replace alternator or clean terminals
Estimated Cost (DIY)
$20 - $250
Symptoms
- ⚠️Dim lights
- ⚠️Battery warning light
- ⚠️Slow cranking
- ⚠️Electrical accessories malfunction
Common Causes
Failing alternatorlikely
Corroded battery terminalspossible
Loose alternator beltpossible
Dying batterypossible
How to Diagnose P0562
- 1Check battery voltage (should be 12.4-12.7V engine off, 13.5-14.5V running)
- 2Clean battery terminals
- 3Check alternator belt tension
- 4Test alternator output
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Frequently Asked Questions
- What voltage should my car have?
- Engine off: 12.4-12.7V. Engine running: 13.5-14.5V. Below 13.5V running means the alternator is not charging properly.
- Can a bad battery cause P0562?
- A dying battery can cause voltage drops, but the alternator should compensate. Test both the battery and alternator.