Hyundai Tiburon 2003 Workshop Manual page 66

TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Engine Electrical System > Cruise Control System >
Troubleshooting, TIBURON(GK) > 2003 > G 2.7 V6 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
Cruise control cannot be set
Cruise control cannot be set but indicator light does not
go on
Cruise speed is noticeably higher or lower than what
was set
Excessive overshooting or undershooting when trying
to set speed
Speed fluctuation on a flat road with cruise control set
Vehicle does not decelerate or accelerate accordingly
when SET/RESUME/CANCEL button is pushed
Cruise control does not cancel when shift lever is
moved to N position (A/T)
Set speed is not cancelled when brake pedal is pushed Brake switch
Cruise control will not cancel when main switch is
pushed OFF
Cruise control will not cancel when CANCEL button is
pushed
Set speed will not resume when RESUME button (with
main switch on, when set speed is temporarily
cancelled)
The transmission shifts down slower than normal when
going up a hill with the cruise control on (A/T)
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Suspect Area
Main switch
SET/RESUME/CANCEL switch
Brake switch
A/T gear position switch
Cruise control nuit
Dimming circuit in gauge
Cruise control unit
Vehicle speed sensor
Cruise control unit and actuator cable deflection
Cruise control nuit
Cruise control unit and actuator cable deflection
Vehicle speed sensor
Cruise control unit
Vhicle speed sensor
Cruise control unit and actuator cable deflection
Cruise control nuit
Main switch
SET/RESUME/CANCEL switch
Cruise control unit
A/T gear position switch
Cruise control unit
Cruise control unit
Main switch
SET/RESUME/CANCEL switch
Cruise control unit
Main switch
SET/RESUME/CANCEL switch
Cruise control unit
Main switch
SET/RESUME/CANCEL switch
Cruise control unit
Troubleshooting the cruise control communication
circuit
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24.04.2008