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Home >> Chevrolet >> 1998 >> Venture Base, Van Cargo Extended >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Control System - Theory & Operation >> Miscellaneous Pcm/VCM Controls >> Cruise Control
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Cruise Control

On models equipped with cruise control, the system is operated by the PCM/VCM. PCM/VCM receives inputs from VSS, servo diaphragm position sensor, cruise control switch and brake release switch. Based on these inputs, PCM/VCM controls position of cruise control stepper motor. PCM/VCM prevents system engagement at speeds of less than 25 MPH. PCM/VCM is not serviceable; if defective, it must be replaced. A system fault is stored as a Diagnostic Trouble Code (DTC) in PCM/VCM memory.