Kia Optima: Seat Electrical / Ventilated and Heated Seat Switch

Kia Optima DL3 2019-2020 Service and Repair Manual / Body Electrical System / Seat Electrical / Ventilated and Heated Seat Switch

Schematic diagrams
Connector and Terminal Function

[Front Seat]

[Ventilation+Heater Type / Non-Heater Type]

Pin
Function
Pin
Function
Ventilation+Heater Type
Non-Heater Type
Ventilation+Heater Type
Non-Heater Type
1
IGN1
-
9
Illumination (+)
2
-
-
10
-
3
-
-
11
Illumination (-)
4
Ground
-
12
-
5
-
13
Steering heater mode
-
6
-
14
Steering heater indicator
-
7
LIN
-
15
Driver mode switch (CW)
8
Ground
16
Driver mode switch (CCW)

[Heater Type]

Pin
Function
Pin
Function
1
Heater indicator (High)_RH
13
Heater mode_RH
2
Heater indicator (Mid)_RH
14
-
3
Heater indicator (Low)_RH
15
-
4
-
16
Ground
5
Driver mode switch (CW)
17
-
6
Driver mode switch (CCW)
18
Illumination (-)
7
Steering heater mode
19
-
8
Steering heater indicator
20
Illumination (+)
9
Heater mode_LH
21
-
10
Heater indicator (High)_LH
22
-
11
Heater indicator (Mid)_LH
23
-
12
Heater indicator (Low)_LH
24
-

[Rear Seat]

[Safety Type]

Pin
Function
Pin
Function
1
Ground (Illumination -)
5
Ground
2
Door lock switch
6
Door lock indicator
3
Door unlock switch
7
Safety power window
4
Battery + (Illumination +)
8
-

[Manual Type]

Pin
Function
Pin
Function
1
Ground
7
Driver window down
2
Seat warmer (High)
8
Window enble
3
Window down motor
9
Ground (Illumination -)
4
Seat warmer (Low)
10
Driver window up
5
Window up motor
11
Battery + (Illumination +)
6
Seat warmer switch
12
Battery (+)

Repair procedures
Inspection

[Front Seat]

1.

Disconnect the negative battery terminal.

2.

Remove the console upper cover.

(Refer to Body - "Floor Console Assembly")

3.

Push and hold the switch, check for continuity between signal terminal and ground terminal.

[Heater Switch]

[Rear Seat]

1.

Disconnect the negative battery terminal.

2.

Remove the rear door trim.

(Refer to Body - "Rear Door Trim")

3.

Push and hold the switch, check for continuity between signal terminal and ground terminal.

[Safety]

[Manual]

Removal

[Front Seat]

1.

Disconnect the negative battery terminal.

2.

Remove the console upper cover.

(Refer to Body - "Floor Console Assembly")

3.

Remove the wireless power charger pad (A).

4.

Disconnect the all connectors from the console floor switch complete.

(A) : Main connector fixing fastener

(B) : Console floor switch complete connector

(C) : Wireless charging indicator connector

5.

Remove the console cup holder assembly (A) by loosening the mounting screws.

6.

Remove the EPB switch assembly (A) by loosening the mounting screws.

7.

Remove the console floor switch complete (A).

[Rear Seat]

1.

Disconnect the negative battery terminal.

2.

Remove the rear power window switch.

(Refer to Power Windows - "Power Window Switch")

Installation
1.

Install in the reverse order of removal.

Heated Seats Only
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