Electronic Throttle System Malfunction
2017-2022 Kia Niro EV Electric
Description
The PCM has detected a general malfunction in the Electronic Throttle Control system. The throttle body is not responding correctly to accelerator pedal input, and the system may enter limp mode to protect the engine.
Symptoms
- Check Engine Light
- Reduced engine power (limp mode)
- Throttle response sluggish or unresponsive
- Engine may idle only
- ETC warning light on
Common Causes
- Faulty electronic throttle body
- Accelerator pedal position sensor failure
- Wiring issue in ETC circuit
- Carbon buildup preventing throttle plate movement
- PCM ETC driver failure
Diagnostic Steps
- Check for companion ETC codes
- Monitor throttle position vs accelerator pedal position on scan tool
- Inspect throttle body connector and wiring
- Clean throttle body plate and bore
- Test accelerator pedal position sensor
Repair Notes
Clean the throttle body first; replace the throttle body assembly if the motor or internal sensors have failed.
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
P1110 on Other Vehicles
Common Questions
What does code P1110 mean on a 2017-2022 Kia Niro EV?
P1110 stands for "Electronic Throttle System Malfunction". The PCM has detected a general malfunction in the Electronic Throttle Control system. The throttle body is not responding correctly to accelerator pedal input, and the system may enter limp mode to protect the engine.
What are the symptoms of P1110 on a Kia Niro EV?
Common symptoms of P1110 include: Check Engine Light, Reduced engine power (limp mode), Throttle response sluggish or unresponsive, Engine may idle only, ETC warning light on.
What causes P1110 on a 2017-2022 Kia Niro EV?
Common causes of P1110 include: Faulty electronic throttle body, Accelerator pedal position sensor failure, Wiring issue in ETC circuit, Carbon buildup preventing throttle plate movement, PCM ETC driver failure.