Hyundai Tiburon (2003 year). Manual — part 17

TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Engine Electrical System > Cruise Control System > Components and
Components Location, TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Engine Electrical System > Cruise Control
System > Components and Components Location

COMPONENTS LOCATION

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

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

TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Engine Electrical System > Cruise Control System > Repair
procedures, TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Engine Electrical System > Cruise Control
System > Repair procedures

INSPECTION

CRUISE CONTROL SWITCH TEST

1. Disconnect the battery negative cable, then disconnect the positive cable, and wait at least three minutes.

2. Remove the driver's airbag (See page RT).

3. Disconnect the control switch connector.

4. Check the continuity between the terminals of the connector in each switch position according to the table.

A. If there is continuity, and it matches the table, the switch is O.K.

B. If there is no continuity, replace the control switch.

BRAKE SWITCH TEST

1. Disconnect the connector from the brake switch.

2. Remove the brake switch.

3. Check for continuity between the terminals according to the table.

4. If necessary, replace the switch or adjust the pedal height.

ACTUATOR CABLE ADJUSTMENT

1. Check that the actuator cable (A) moves smoothly with no binding or sticking.

2. position, M/T in neutral) until the radiator fan comes on, then let it idle.

3. Measure the amount of movement of the output linkage (B) until the engine speed starts to increase.

At first, the output linkage should be located at the fully closed position (C).

4. If the free play is not within specs, move the cable to the point where the engine speed starts to increase, and

tighten the locknut (A) and adjusting nut (B).

5. Turn the adjusting nut (A) until it is 3.75±0.5 mm (0.15±0.02 in.) away from the bracket (B).

6. Pull the cable assembly so that the adjusting nut (A) touches the bracket, and tighten the locknut (B).