Kia Optima: Seat Electrical / Relaxion Comfort Seat

Kia Optima DL3 2019-2025 Service and Repair Manual / Body Electrical System / Seat Electrical / Relaxion Comfort Seat

Components and components location
Component Location

1. Relaxion comfort switch
2. Walk-in switch
3. Relaxion comfort seat unit (RCSU)


Schematic diagrams
Connector and Terminal Function

Pin
Function
Connector A
Connector B
1
Battery (+)
Slide motor switch (Forward)
2
Slide motor (Forward)
Slide motor switch (Backward)
3
Slide motor (Backward)
Relaxion comfort switch (Forward)
4
Recline motor (Forward)
Relaxion comfort switch (Backward)
5
Recline motor (Backward)
Rear height motor switch (Up)
6
Ground
Rear height motor switch (Down)
7
Battery (+)
Relaxion comfort switch
8
-
Return switch
9
Rear height motor (Up)
-
10
Rear height motor (Down)
-
11
-
Sensor power
12
Ground
IGN2
13

IGN1
14
ECU (Battery +)
15
Walk-in switch Slide (Forward)
16
Walk-in switch Slide (Backward)
17
Walk-in switch Recline (Forward)
18
Walk-in switch Recline (Backward)
19
Walk-in relaxion comfort switch
20
Walk-in return switch
21
ECU (Ground)
22
-
23
-
24
Limit set power
25
Slide motor sensor
26
Recline motor sensor
27
Rear height motor sensor
28
Virtual limit set switch

Repair procedures
Removal

Walk-in Switch

1.

Remove the walk-in switch.

(Refer to Seat Electrical - "Walk-in Switch")

Relaxion Comfort Switch

1.

Remove the relaxion comfort switch.

(Refer to Seat Electrical - "Power Seat Control Switch")

Relaxion Comfort Seat Unit (RCSU)

1.

Disconnect the negative battery terminal.

2.

Remove the front passenger seat assembly.

(Refer to Body - "Front Seat Assembly")

3.

Loosen the occupant detection sensor mounting screws (A).

4.

Remove the occupant detection sensor (B) by disconnecting the connector (A).

5.

Disconnect the side airbag connector (B) by removing the fixing clip (A).

6.

Remove the relaxion comfort seat unit fixing clips (A).

7.

Disconnect the relaxion comfort seat unit connectors (A).

8.

Loosen the relaxion comfort seat unit mounting screws (A).

9.

Remove the relaxion comfort seat unit (A).

Installation
1.

Install in the reverse order of removal.

Walk-in Switch
Components and components location Component Location 1. Walk-in switch Repair procedures Removal  &n ...

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