3.8L Engine Only

The Idle Speed Control Motor (ISC) controls idle speed by modulating the throttle lever. This regulates airflow to maintain the desired engine RPM for both "Warm" engine and the additional engine speed required during "Cold" engine idle.

An Idle Tracking System (ITS), integral to the ISC motor, is utilized to determine when the throttle lever has contacted the actuator. This signals the need to control engine RPM. The ISC motor extends or retracts a linear shaft through a gear reduction system. The motor direction is determined by the polarity of the applied voltage.