Throttle Full Close Switch: Description and Operation

PURPOSE
The signal from the closed throttle position switch is used for idle speed control, idle speed adaptation and deceleration fuel shut-off.

OPERATION
The Closed Throttle Position Switch and throttle position potentiometer are in one housing. The housing is located on the bottom of the throttle body and are operated by the throttle shaft.

Closed throttle is recognized via the throttle position potentiometer if the closed throttle position switch signal fails. Idle speed adaptation is also switched OFF.