Kia Cadenza: Cruise Control System / Cruise Control Switch Repair procedures

Kia Cadenza YG 2016-2025 Service Manual / Engine Electrical System / Cruise Control System / Cruise Control Switch Repair procedures

Removal

1.	Turn ignition switch OFF and disconnect the negative (-) battery cable.

2.	Remove the air-bag module from the steering wheel. (Refer to Restraint - "Driver Airbag (DAB) Module and Clock Spring")

3.	Remove the steering wheel cover (A) after loosening the screws.

4.	Remove the steering wheel remote control switch connector (A). [LH] [RH]

5.	Remove the steering wheel remote control switch (A) after loosening the mounting screws.

Installation

1.	Install in the reverse order of removal.

Inspection

[Measuring Resistance]

1.	Disconnect the cruise control switch connector from the control switch.

Measure resistance between terminals on the control switch when each function switch is ON (switch is depressed).

Function switch	Terminal	Resistance (±5%) [kΩ]
CANCEL	2 - 7	0.18
SET-	2 - 7	0.33
RESUME+	2 - 7	0.55
CRUISE	2 - 7	0.88
SCC	2 - 7	2.54

3.	If not within specification, replace switch.

[Measuring Voltage]

1.	Connect the cruise control switch connector to the control switch.

Measure voltage between terminals on the harness side connector when each function switch is ON (switch is depressed).

Function switch	Terminal	Resistance [kΩ]
CANCEL	2 - 7	0.76 ± 0.15
SET-	2 - 7	1.24 ± 0.20
RESUME+	2 - 7	1.77 ± 0.22
CRUISE	2 - 7	2.34 ± 0.10
SCC	2 - 7	3.59 ± 0.24

3.	If not within specification, inspect the control switch resistance. The measuring resistance value is not within specification, replace the switch and measure the voltage again.

4.	If resistance is OK but, measuring voltage is not within specification, inspect the wiring harness and connectors between the switch and the ECM.

Cruise Control Switch Schematic Diagrams

Circuit Diagram ...

Smart Cruise Control System

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