Hyundai Sonata: Cruise Control Switch. Repair procedures - Cruise Control System - Engine Electrical SystemHyundai Sonata: Cruise Control Switch. Repair procedures

Removal and Installation

1.
Disconnect the battery negative terminal.
Tightening torque :
4.0 ~ 6.0N.m (0.4 ~ 0.6kgf.m, 3.0 ~ 4.4lb-ft)
2.
Remove the driver airbag module. (Refer to the RT group - "Airbag module")
3.
Remove the steering wheel. (Refer to the ST group - "Steering column and shaft")
4.
Remove the steering wheel cover (A) after loosening the screws.
5.
Disconnect the cruise control switch connector (A) and then remove the switch.

Be careful not to damage the hook when removing the switch.
6.
Installation is the reverse of removal.

Inspection

Measuring Resistance
1.
Disconnect the cruise control switch connector from the control switch.
2.
Measure resistance between terminals on the control switch when each function switch is ON (switch is depressed).
Function switch
 Terminal
 Resistance
CANCEL
 3 - 4
 180Ω ± 5%
SET/–
 3 - 4
 330Ω ± 5%
RES/+
 3 - 4
 550Ω ± 5%
ON/OFF
 3 - 4
 880Ω ± 5%

3.
If not within specification, replace switch.
Measuring Voltage
1.
Connect the cruise control switch connector to the control switch.
2.
Measure voltage between terminals on the harness side connector when each function switch is ON (switch is depressed).
Function switch
 Terminal
 Voltage
CANCEL
 3 - 4
 0.76V ± 0.1V
SET/–
 3 - 4
 1.24V ± 0.15V
RES/+
 3 - 4
 1.77V ± 0.2V
ON/OFF
 3 - 4
 2.34V ± 0.22V

3.
If not within specification, replace switch.