Eclipse L4-1997cc 2.0L DOHC (1991)
Closed Throttle Position Switch: Description and Operation
Idle Position Switch Circuit
The Idle Position Switch, which is a contact type switch, senses accelerator operation. The switch is installed on the throttle chamber at the throttle shaft
(on the firewall side). When the throttle valve is in the idle position, the ISC lever pushes the push-pin to turn on the contact.