If vehicle is equipped with air bag, air bag must be deactivated before servicing cruise control components on or around steering column. See appropriate AIR BAG RESTRAINT SYSTEM article in ACCESSORIES & EQUIPMENT. NO CRUISE CONTROL WHEN SET BUTTON IS PRESSED & RELEASED Check for: blown fuse, no vacuum at servo and/or defective servo, disconnected speed control cable, brakelight switch out of adjustment, faulty electrical circuit, faulty Park/Neutral switch input to PCM, faulty PCM. CRUISE CONTROL ENGAGES WITHOUT ACTUATING CRUISE SET BUTTON Check for: defective servo, faulty electrical circuit or control switch. CRUISE CONTROL ENGAGES WHEN ENGINE IS STARTED Check for: defective servo, faulty electrical circuit. ERRATIC SPEED OR ENGINE SHUTS OFF Check for: poor engine performance (surge), defective vehicle speed sensor, vacuum leak, faulty servo, faulty CRUISE CONTROL DISENGAGES ON ROUGH ROAD Check for: brakelight switch out of adjustment, faulty cruise control switch, faulty electrical circuit.

download