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Home >> Infiniti >> 2003 >> I35 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Output Signals >> Electric Throttle Control Actuator
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Electric Throttle Control Actuator

Electric throttle control actuator consists of throttle control motor, Accelerator Pedal Position (APP) sensor, throttle position sensor, etc. The throttle control motor is operated by the ECM and it opens and closes the throttle valve. APP sensor detects the accelerator pedal position, the opening and closing speed of the accelerator pedal and feeds the voltage signals to the ECM. The ECM judges the current opening angle of the accelerator pedal from these signals and controls the throttle control motor based on these signals. The throttle position sensor detects the throttle valve position and the opening and closing speed of the throttle valve and feeds the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition.