P0562

Medium Severity

System Voltage Low

Electrical System

P0562 — Instant Answer

System Voltage Low

Severity: MEDIUM SEVERITY

Meaning: Battery/charging system voltage is below normal operating range.

Safe to drive? Usually yes with caution, but confirm root cause before long trips.

Estimated repair cost: $20 - $250

Most common causes:

  • 1. Failing alternator (35-45% of cases)
  • 2. Corroded battery terminals (10-25% of cases)
  • 3. Loose alternator belt (10-25% of cases)
  • 4. Dying battery (10-25% of cases)

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 Procedures for P0562

P0562 affects the Alternator. Found 263 OEM service manual procedures.

Alternator

12 31 020 Removing and installing/replacing alternator (Cooper S 4-door hatchback, Cooper S 2-door hatchback, Cooper JCW 2-door hatchback, Cooper JCW GP 2-door hatchback) - Replacement: Remounting the belt tensioner

Alternator
No link

12 31 020 Removing and installing/replacing alternator (Cooper S 4-door hatchback, Cooper S 2-door hatchback, Cooper JCW 2-door hatchback, Cooper JCW GP 2-door hatchback) - Replacement: Remounting the belt tensioner

Alternator
No link

12 31 020 Removing and installing/replacing alternator (Cooper S 4-door hatchback, Cooper S 2-door hatchback, Cooper JCW 2-door hatchback, Cooper JCW GP 2-door hatchback) - Replacement: Remounting the belt tensioner

Alternator
No link

12 31 020 Removing and installing/replacing alternator (Cooper S 4-door hatchback, Cooper S 2-door hatchback, Cooper JCW 2-door hatchback, Cooper JCW GP 2-door hatchback) - Replacement: Remounting the belt tensioner

Alternator
No link

12 31 020 Removing and installing/replacing alternator (Cooper S 4-door hatchback, Cooper S 2-door hatchback, Cooper JCW 2-door hatchback, Cooper JCW GP 2-door hatchback) - Replacement: Remounting the belt tensioner

Alternator
No link

12 31 020 Removing and installing/replacing alternator (Cooper S 4-door hatchback, Cooper S 2-door hatchback, Cooper JCW 2-door hatchback, Cooper JCW GP 2-door hatchback) - Replacement: Remounting the belt tensioner

Alternator
No link

12 31 020 Removing and installing/replacing alternator (Cooper S 4-door hatchback, Cooper S 2-door hatchback, Cooper JCW 2-door hatchback, Cooper JCW GP 2-door hatchback) - Replacement: Remounting the belt tensioner

Alternator
No link

12 31 020 Removing and installing/replacing alternator (Cooper S 4-door hatchback, Cooper S 2-door hatchback, Cooper JCW 2-door hatchback, Cooper JCW GP 2-door hatchback) - Replacement: Remounting the belt tensioner

Alternator
No link

Showing 8 of 263 procedures

OEM Diagnostic Flowchart

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Test your battery and charging system before replacing parts.

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Priority exact repair pages for this code family

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Related Resources

Repair guides, symptom pages, and wiring diagrams related to P0562.

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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Author & Review

Written by AllOEMManuals Editorial Team. Reviewed by ASE-certified technicians and updated with factory-reference checks for fitment-sensitive steps.

This guide was drafted with AI assistance and reviewed for accuracy by a human editor.

Last updated: 2026-05-07

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