Electronic Throttle Control in Power Limiting Mode
2011-2015 Ford Explorer 3.5L V6 🇨🇦
Description
The Electronic Throttle Control (ETC) system has entered power limiting (limp) mode. The PCM has restricted throttle opening due to a detected fault in the ETC system, limiting vehicle speed and acceleration for safety.
Symptoms
- Severely reduced engine power
- Throttle response very limited
- Vehicle may only idle or drive slowly
- Check Engine Light
- Possible ETC warning light
Common Causes
- ETC system fault detected
- Throttle body malfunction
- Accelerator pedal position sensor fault
- Wiring issue in ETC circuit
- PCM detected conflicting throttle signals
Diagnostic Steps
- Check for other ETC-related DTCs first
- Inspect accelerator pedal position sensor
- Check throttle body operation
- Inspect all ETC wiring for damage
- Key off/on cycle may temporarily restore normal operation
Repair Notes
Diagnose and repair the root ETC fault. May require throttle body or pedal sensor replacement.
Related Codes
Other Powertrain Codes
- 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
- P0003Fuel Volume Regulator Control Circuit Low
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
P1579 on Other Vehicles
Common Questions
What does code P1579 mean on a 2011-2015 Ford Explorer?
P1579 stands for "Electronic Throttle Control in Power Limiting Mode". The Electronic Throttle Control (ETC) system has entered power limiting (limp) mode. The PCM has restricted throttle opening due to a detected fault in the ETC system, limiting vehicle speed and acceleration for safety.
What are the symptoms of P1579 on a Ford Explorer?
Common symptoms of P1579 include: Severely reduced engine power, Throttle response very limited, Vehicle may only idle or drive slowly, Check Engine Light, Possible ETC warning light.
What causes P1579 on a 2011-2015 Ford Explorer?
Common causes of P1579 include: ETC system fault detected, Throttle body malfunction, Accelerator pedal position sensor fault, Wiring issue in ETC circuit, PCM detected conflicting throttle signals.