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