⚡ AUTO CODE FIX
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ElectricalModerate✅ DIY Friendly

P0562

System Voltage Low

Battery/system voltage is below the expected threshold. The ECM has detected low voltage.

SeverityModerate
CategoryElectrical
Est. Repair Cost$100–$600
Code TypePowertrain
DIY RepairYes

⚡ Common Causes

⚠️ Symptoms

✅ How to Fix — Step by Step

  • Step 1:Test battery load capacity
  • Step 2:Test alternator output (13.5–14.7V at idle)
  • Step 3:Clean and tighten battery terminals
  • Step 4:Replace battery if weak
  • Step 5:Replace alternator if output is low
💡 Pro Tip: A battery over 3 years old failing a load test should be replaced — it is the leading cause of P0562.

Repair Cost Estimate

Full Repair Estimate
$100–$600
DIY Possible?
YES
Severity
Moderate

Frequently Asked Questions

What does OBD2 code P0562 mean?+
P0562 stands for System Voltage Low. Battery/system voltage is below the expected threshold. The ECM has detected low voltage.
What causes code P0562?+
Weak or failing battery; Faulty alternator; Loose battery terminal; Corroded battery cables; High electrical load
How do I fix code P0562?+
Test battery load capacity; Test alternator output (13.5–14.7V at idle); Clean and tighten battery terminals; Replace battery if weak; Replace alternator if output is low
How much does it cost to fix P0562?+
Estimated repair cost for P0562 is $100–$600.
Is P0562 DIY-friendly?+
Yes — P0562 is generally DIY-friendly with basic tools.

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