Accelerator Pedal Position Sensor 2 Circuit Malfunction
2017-2022 Kia Niro EV Electric
Description
The PCM has detected a malfunction in the Accelerator Pedal Position Sensor 2 circuit. This redundant sensor provides a backup throttle demand signal for safety. A fault in either APP sensor triggers reduced power mode.
Symptoms
- Check Engine Light
- Reduced power mode activated
- Engine limited to low RPM
- ETC warning light on
- Slow throttle response
Common Causes
- Faulty APP sensor 2
- Wiring or connector issue in APP sensor 2 circuit
- Corroded accelerator pedal connector
- Failing accelerator pedal assembly
- Reference voltage issue
Diagnostic Steps
- Monitor APP sensor 2 voltage through full pedal travel
- Compare APP sensor 2 with APP sensor 1 readings
- Inspect accelerator pedal connector for corrosion
- Check reference voltage at APP sensor 2
- Wiggle test wiring while monitoring
Repair Notes
Replace the accelerator pedal assembly if the APP sensor 2 is faulty.
Related Codes
Other Powertrain Codes
- P0070Ambient Air Temperature Sensor Circuit
- P0071Ambient Air Temperature Sensor Range/Performance
- P0072Ambient Air Temperature Sensor Circuit Low
- P0073Ambient Air Temperature Sensor Circuit High
- P0115Engine Coolant Temperature (ECT) Sensor 1 Circuit
- P0116ECT Sensor 1 Circuit Range/Performance
- P0117ECT Sensor 1 Circuit Low Input
- P0118ECT Sensor 1 Circuit High Input
- P0119ECT Sensor 1 Circuit Intermittent
- P0125Insufficient Coolant Temperature for Closed Loop Fuel Control
P1151 on Other Vehicles
Common Questions
What does code P1151 mean on a 2017-2022 Kia Niro EV?
P1151 stands for "Accelerator Pedal Position Sensor 2 Circuit Malfunction". The PCM has detected a malfunction in the Accelerator Pedal Position Sensor 2 circuit. This redundant sensor provides a backup throttle demand signal for safety. A fault in either APP sensor triggers reduced power mode.
What are the symptoms of P1151 on a Kia Niro EV?
Common symptoms of P1151 include: Check Engine Light, Reduced power mode activated, Engine limited to low RPM, ETC warning light on, Slow throttle response.
What causes P1151 on a 2017-2022 Kia Niro EV?
Common causes of P1151 include: Faulty APP sensor 2, Wiring or connector issue in APP sensor 2 circuit, Corroded accelerator pedal connector, Failing accelerator pedal assembly, Reference voltage issue.