| TIBURON(GK) >2005 > G 2.7 DOHC > Engine Electrical System > Cruise Control System>Troubleshooting |

TROUBLE SHOOTING
Before troubleshooting :
- | Check the No.3(10A), No.13(15A) and No.17(10A) fuse in the under-hood fuse/relay box.
- | Check that the horn sounds.
- | Check the tachometer to see if it works properly.
Symptom | Suspect Area
Cruise control cannot be set | Main switch SET/RESUME/CANCEL switch Brake switch A/T gear position switch Cruise control nuit
Cruise control cannot be set but indicator light does not go on | Dimming circuit in gauge Cruise control unit
Cruise speed is noticeably higher or lower than what was set | Vehicle speed sensor Cruise control unit and actuator cable deflection Cruise control nuit
Excessive overshooting or undershooting when trying to set speed | Cruise control unit and actuator cable deflection Vehicle speed sensor Cruise control unit
Speed fluctuation on a flat road with cruise control set | Vhicle speed sensor Cruise control unit and actuator cable deflection Cruise control nuit
Vehicle does not decelerate or accelerate accordingly when SET/RESUME/CANCEL button is pushed | Main switch SET/RESUME/CANCEL switch Cruise control unit
Cruise control does not cancel when shift lever is moved to N position (A/T) | A/T gear position switch Cruise control unit
Set speed is not cancelled when brake pedal is pushed | Brake switch Cruise control unit
Cruise control will not cancel when main switch is pushed OFF | Main switch SET/RESUME/CANCEL switch Cruise control unit
Cruise control will not cancel when CANCEL button is pushed | Main switch SET/RESUME/CANCEL switch Cruise control unit
Set speed will not resume when RESUME button (with main switch on, when set speed is temporarily cancelled) | Main switch SET/RESUME/CANCEL switch Cruise control unit
The transmission shifts down slower than normal when going up a hill with the cruise control on (A/T) | Troubleshooting the cruise control communication circuit