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Home >> Lincoln >> 1990 >> Mark VII LSC >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Idle Speed Control Systems Operation >> Idle Speed Control (ISC) Motor
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Idle Speed Control (ISC) Motor

This DC motor controls idle speed according to signals from ECA. Idle speed motor also controls high cam RPM, anti-diesel shutoff, dashpot, and pre-positioning for next vehicle start up. The ISC includes an integral Idle Tracking Switch (ITS) which sends a signal to the ECA that the throttle is at idle position.