Cruise Control Cannot Be Set
- Test main switch. See MAIN SWITCH under DIAGNOSIS & TESTING. Test SET/RESUME/CANCEL switch. See SET/RESUME/CANCEL SWITCH under DIAGNOSIS & TESTING. Test brakelight switch. See procedures under BRAKELIGHT SWITCH under DIAGNOSIS & TESTING. Test clutch switch on M/T vehicles. See CLUTCH SWITCH under DIAGNOSIS & TESTING. Test gearshift lever position switch on A/T vehicles. See procedures under GEARSHIFT LEVER POSITION SWITCH under DIAGNOSIS & TESTING. Check cruise control unit inputs. See CONTROL UNIT INPUT TEST under DIAGNOSIS & TESTING.
- Check ground connection G152, located at left front corner of engine compartment. Check ground connection G301, located behind left kick panel. Check ground connection G302, located on top of right shock tower. Check ground connection G303, behind right kick panel. Repair ground connections as necessary.
- Check the following wires for opens or loose and/or disconnected terminals. See WIRING DIAGRAM . Repair wires as necessary and recheck system operation. Check Blue/Red wire between clockspring and SET/RESUME/CANCEL switch. Check Light Green/Red wire between cruise control unit and clockspring. Check Black/Red wire between fuse No. 20 (7.5-amp) and cruise control unit and between fuse and main switch. Check Light Green wire between cruise control unit and main switch. Check Gray wire between cruise control unit and brake switch. Check Brown wire, Brown/White wire and Brown/Black wire between cruise control unit and actuator assembly. Check Pink wire between cruise control unit and clutch pedal switch (M/T) or gear position switch (A/T). Check Yellow/Red wire between cruise control unit and Vehicle Speed Sensor (VSS).