P0562 – System Voltage Low
Description
The system voltage is lower than the ECU expects.
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A diagnostic scanner with live data, freeze-frame information and the right system access can help you investigate the actual cause before replacing parts.
Compare Diagnostic ScannersSymptoms
- Dim lights
- Slow cranking
- Poor acceleration
- Rough idle
- Check engine light
Causes
- Weak battery
- Faulty alternator
- Damaged wiring
- Loose connections
- ECU issue
Diagnosis
- Test battery
- Test alternator
- Inspect wiring
- Check grounds
- Scan live data
Repair
- Replace battery
- Replace alternator
- Repair wiring
- Fix grounds
- Update ECU