Kia Optima Hybrid: Cruise Control System / Cruise Control Switch Repair procedures

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Engine Electrical System / Cruise Control System / Cruise Control Switch Repair procedures

Removal and Installation

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.	loosening the screws at rear side of switch.

Disconnect the cruise control switch connector and then remove the switch (A).

Be careful not to damage the hook when removing the switch.

7.	Installation is the reverse 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
CANCEL	2 - 7	180? ± 5%
SET/–	2 - 7	330? ± 5%
RES/+	2 - 7	550? ± 5%
ON/OFF	2 - 7	880? ± 5%

3.	If not within specification, replace switch.

Measuring Voltage

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

With ignition switch ON, measure voltage between terminals on the harnessside connector when each function switch is ON (switch is depressed).

Function switch	Terminal	Voltage
CANCEL	2 - 7	0.67 ~ 0.86V
SET/–	2 - 7	1.10 ~ 1.39V
RES/+	2 - 7	1.59 ~ 1.97V
ON/OFF	2 - 7	2.13 ~ 2.56V

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 instrument cluster .

Cruise Control Switch Schematic Diagrams

Circuit Diagram ...

Ignition System

...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Blower Motor Repair procedures

Inspection 1. Connect the battery voltage and check the blower motor rotation. 2. If the blower motor voltage is not operated well, substitute with a known-good blower motor and check for proper operation. 3. If the problem is corrected, replace the blower motor. Replacement 1. Disconnect the negative ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Tire Repair procedures

Tire wear 1. Measure the tread depth of the tires. Tread depth [limit] : 1.6 mm (0.063 in.) 2. If the remaining tread depth (A) is less than the limit, replace the tire. When the tread depth of the tires is less than 1.6 mm(0.063 in.), the wear indicators (B) will appear. ...