Symptoms

- Engine Light ON (or Service Engine Soon Warning Light)

Possible Causes

- Electric throttle control actuator harness is open or shorted - Electric throttle control actuator electrical circuit poor connection - Faulty Electric throttle control actuator

When Detected

Electric throttle control function does not operate properly.

Description

Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc. The throttle control motor is operated by the ECM and it opens and closes the throttle valve. The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feedback to the ECM to control the throttle control motor to make the throttle valve opening angle properly in response to driving condition.