Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Electric Throttle Control Actuator
FUNCTIONS WITHIN THE SYSTEM
The ECM transmits the control signal to the electronically controlled throttle and controls the throttle position according to the driving conditions.
INDIVIDUAL FUNCTION WITHIN THE SYSTEM
The electric throttle control actuator consists of throttle body, throttle valve, throttle control motor and throttle position sensor.
INDIVIDUAL OPERATION
Throttle Motor
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
Throttle Position Sensor
The throttle position sensor has two sensors. These sensors are a kind of potentiometers which transform the throttle valve position into output voltage, and emit the voltage signal to the ECM. In addition, these sensors detect the opening and closing speed of the throttle valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals.
Component Location
The electric throttle valve actuator is installed beside the intake manifold collector.
NO RELATED
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.