P2502
Charging System Voltage
2000-2002 Rolls-Royce Corniche 6.75L V8
High SeverityPowertrainGeneric (SAE)
Description
The system charging voltage is outside the expected regulation window.
Symptoms
- Battery light
- Check engine light
- Electrical accessories malfunction
- Battery drains overnight
Common Causes
- Failed alternator
- Loose drive belt
- Battery terminal corrosion
- ECM-controlled charging fault
Diagnostic Steps
- Check battery voltage engine off and running
- Inspect belt tension and condition
- Load test alternator
- Check battery terminals
Repair Notes
Replace alternator or battery. Clean terminals. Check belt.
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
P2502 on Other Vehicles
Rolls-Royce Cullinan
2019-2024 6.75L V12 Twin Turbo
Rolls-Royce Dawn
2016-2024 6.6L V12 Twin Turbo
Rolls-Royce Ghost
2010-2024 6.6L V12 Twin Turbo
Rolls-Royce Phantom VII
2003-2017 6.75L V12
Rolls-Royce Phantom VIII
2018-2024 6.75L V12 Twin Turbo
Rolls-Royce Silver Seraph
1998-2002 5.4L V12
Rolls-Royce Silver Spirit
1990-1998 6.75L V8
Rolls-Royce Silver Spur
1990-1998 6.75L V8
Common Questions
What does code P2502 mean on a 2000-2002 Rolls-Royce Corniche?
P2502 stands for "Charging System Voltage". The system charging voltage is outside the expected regulation window.
What are the symptoms of P2502 on a Rolls-Royce Corniche?
Common symptoms of P2502 include: Battery light, Check engine light, Electrical accessories malfunction, Battery drains overnight.
What causes P2502 on a 2000-2002 Rolls-Royce Corniche?
Common causes of P2502 include: Failed alternator, Loose drive belt, Battery terminal corrosion, ECM-controlled charging fault.