Description & Operation: Notes

WARNING: To avoid injury from accidental air bag deployment, read and carefully follow all WARNINGS and SERVICE PRECAUTIONS. See AIR BAG RESTRAINT SYSTEM article.

CAUTION: When battery is disconnected, radio will go into anti-theft protection mode. Obtain radio anti-theft protection code from owner prior to servicing vehicle.

NOTE: Throughout this article, Engine Control Module (ECM) will be referenced as Powertrain Control Module (PCM).

Main cruise control system components consist of: Cruise Control Module (CCM), actuator, cruise control switch, Vehicle Speed Sensor (VSS) and cancel switches. Cancel switches are used to disengage cruise control operation. Cancel switches consist of: parking brake switch, brake fluid level switch, brakelight switch, cruise control switch, Park/Neutral Position (PNP) switch (A/T) and Clutch Pedal Position (CPP) interrupt switch (M/T). See Figure.

A Throttle Position (TP) sensor, located on throttle body, informs CCM that throttle is in idle position. On models equipped with 4-speed A/T, PCM will send a shift solenoid No. 2 signal informing CCM that transaxle is in 2nd or 3rd gear and is out of overdrive mode.

The CCM monitors vehicle speed and provides necessary commands to the actuator to maintain or change vehicle speed in response to inputs from cruise control switch. When CCM receives a cruise control command, a DC servomotor inside actuator turns a worm gear. Worm gear moves accelerator cable, which adjusts throttle position. A magnetic clutch mechanically connects DC servomotor to worm gear. Cruise control operation is disengaged when one or more cancel switches close. Upon receiving a cancel signal, CCM de-energizes magnetic clutch inside cruise control actuator.