P2501
Generator Lamp/L Terminal Circuit High
2002-2005 Ford Explorer 4.6L V8 🇨🇦
High SeverityPowertrain
Description
High signal on alternator exciter circuit.
Symptoms
- Battery light behavior abnormal
- Overcharging possible
- Check engine light
Common Causes
- Short to voltage in exciter wire
- Voltage regulator fault
- ECM communication issue
Diagnostic Steps
- Measure exciter circuit voltage
- Check for shorts to power
- Test alternator output
Repair Notes
Repair wiring or replace alternator.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0001Fuel Volume Regulator Control Circuit/Open
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0003Fuel Volume Regulator Control Circuit Low
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
P2501 on Other Vehicles
Common Questions
What does code P2501 mean on a 2002-2005 Ford Explorer?
P2501 stands for "Generator Lamp/L Terminal Circuit High". High signal on alternator exciter circuit.
What are the symptoms of P2501 on a Ford Explorer?
Common symptoms of P2501 include: Battery light behavior abnormal, Overcharging possible, Check engine light.
What causes P2501 on a 2002-2005 Ford Explorer?
Common causes of P2501 include: Short to voltage in exciter wire, Voltage regulator fault, ECM communication issue.