P0563
System Voltage High
1999-2000 BMW 323i E46 2.5L I6 🇷🇺
High SeverityPowertrain
Description
The system voltage is above the acceptable threshold.
Symptoms
- Check Engine Light
- Bulbs burning out frequently
- Battery swelling
- Electrical component damage
Common Causes
- Faulty voltage regulator
- Faulty alternator
- Bad battery sense wire
- PCM-controlled charging issue
Diagnostic Steps
- Test voltage at battery (should not exceed 15V)
- Test alternator regulator
- Check battery sense wire
- Test charging system
Repair Notes
Overcharging can damage battery and electronics. Replace alternator/regulator. Urgent repair.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0563 on Other Vehicles
Common Questions
What does code P0563 mean on a 1999-2000 BMW 323i E46?
P0563 stands for "System Voltage High". The system voltage is above the acceptable threshold.
What are the symptoms of P0563 on a BMW 323i E46?
Common symptoms of P0563 include: Check Engine Light, Bulbs burning out frequently, Battery swelling, Electrical component damage.
What causes P0563 on a 1999-2000 BMW 323i E46?
Common causes of P0563 include: Faulty voltage regulator, Faulty alternator, Bad battery sense wire, PCM-controlled charging issue.