P0562

Medium Severity

System 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

Related Symptoms

Common Causes

Failing alternatorlikely
Corroded battery terminalspossible
Loose alternator beltpossible
Dying batterypossible

How to Diagnose P0562

  1. 1Check battery voltage (should be 12.4-12.7V engine off, 13.5-14.5V running)
  2. 2Clean battery terminals
  3. 3Check alternator belt tension
  4. 4Test alternator output

OEM Diagnostic Flowchart

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Related Resources

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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.

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