ETS Throttle Motor Malfunction
2017-2022 Kia Niro EV Electric
Description
The PCM has detected a malfunction in the Electronic Throttle System throttle motor. The motor that physically moves the throttle plate is not responding correctly to PCM commands, which severely limits engine power.
Symptoms
- Check Engine Light
- Severe loss of power
- Engine limited to idle speed
- ETC warning light illuminated
- Throttle unresponsive to pedal input
Common Causes
- Faulty throttle body motor
- Internal throttle body failure
- Wiring damage to throttle body motor
- Corroded throttle body connector
- PCM motor driver circuit failure
Diagnostic Steps
- Test throttle body motor resistance
- Command throttle opening with scan tool and observe response
- Inspect throttle body connector and wiring
- Check for binding throttle plate
- Verify PCM motor drive signals
Repair Notes
Replace the electronic throttle body assembly if the internal motor has 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
P1118 on Other Vehicles
Common Questions
What does code P1118 mean on a 2017-2022 Kia Niro EV?
P1118 stands for "ETS Throttle Motor Malfunction". The PCM has detected a malfunction in the Electronic Throttle System throttle motor. The motor that physically moves the throttle plate is not responding correctly to PCM commands, which severely limits engine power.
What are the symptoms of P1118 on a Kia Niro EV?
Common symptoms of P1118 include: Check Engine Light, Severe loss of power, Engine limited to idle speed, ETC warning light illuminated, Throttle unresponsive to pedal input.
What causes P1118 on a 2017-2022 Kia Niro EV?
Common causes of P1118 include: Faulty throttle body motor, Internal throttle body failure, Wiring damage to throttle body motor, Corroded throttle body connector, PCM motor driver circuit failure.