P0562moderate severityPowertrain
System Voltage Low
on 2001 BMW 530i 3.0L I6 M54 · RWD
What this code means
The system voltage is below the acceptable threshold.
Symptoms
- Check Engine Light
- Battery light on
- Dim lights
- Electrical accessories malfunctioning
- Hard starting
Common causes
- Weak battery
- Faulty alternator
- Corroded battery terminals
- Loose serpentine belt
- Bad ground connection
Diagnostic steps
- Test battery voltage (should be 12.6V static, 13.5-14.5V running)
- Load test battery
- Test alternator output
- Inspect belt tension
- Clean battery terminals
- Check ground straps
Repair notes
Test battery and alternator. Clean terminals. Most common: failing alternator.
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Other Powertrain codes on this vehicle
29CC
Misfire Cylinder 1
29CD
Misfire Cylinder 2
29CE
Misfire Cylinder 3
29CF
Misfire Cylinder 4
29D0
Misfire Cylinder 5
29D1
Misfire Cylinder 6
29D2
Misfire Cylinder 7
29E0
Lambda Additive/Idle Adaptation Limit, Bank 1
29E1
Lambda Additive/Idle Adaptation Limit, Bank 2
29E2
Lambda Multiplicative Part-Load Adaptation Limit, Bank 1