Throttle Position Switch: Description and Operation

Throttle Switch (TS):

Throttle Switch:

The Throttle Switch (TS) consists of 2-contact points (idle switch and wide open switch) and is connected to the throttle valve shaft. The throttle opening in the idle state is detected by means of the idle switch, and the wide open state is detected by the wide open switch.
The ECM uses the "ON/OFF" signals from the throttle switch as one of the signals to control the fuel injector, ISC solenoid valve and EGR VSV (if equipped).