Idle Speed Control (ISC) System

IDLE SPEED CONTROL (ISC) SYSTEM




To improve idle smoothness, the SC system controls the intake air amount by regulating the bypass air amount that passes through the throttle body. This system consists ot the BAC valve and the control system.

The BAC valve consists of the air valve that functions only when the engine is cold and the solenoid valve (ISC) that works throughout the entire engine speed range.