Kia Optima DL3 Quiz
Body Electrical System

Relaxion Comfort Seat

In this manual: Body Electrical System
General Information — 8Advanced Driver Assistance System (ADAS) — 21Maintenance — 27Engine Mechanical System — 45Engine Electrical System — 11Emission Control System — 11Engine Control System/Fuel System — 25Automatic Transmission — 20Drive Shaft and Axle — 7Suspension System — 22Steering — 7Restraints — 11Brake System — 22Body (Interior and Exterior) — 116Body Electrical System — 90Heating, Ventilation, and Air Conditioning — 32
9steps
~54min
2/5difficulty
Done 0 of 9

Components and Component Location

Component Location

1. Relaxion Mode Switch
2. Walk-in Idle Switch		 3. Relaxion Comfort Seat (RCS)

Circuit 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 Tilt Motor (Forward) Relaxion Comfort Switch (Backward)
5 Tilt 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 Slide Switch (Forward)
16 Walk-In Slide Switch (Backward)
17 Walk-In Recline Switch (Forward)
18 Walk-In Recline Switch (Backward)
19 Relaxion Comfort Switch
20 Return Switch
21 ECU (ground)
22 -
23 -
24 Maximum Set Power
25 Slide Motor Sensor
26 Tilt Motor Sensor
27 Rear Height Motor Sensor
28 Virtual Limit Switch

Repair Procedures

Removal

Walk-in Switch

  1. Remove the switch.

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

Relaxion Comfort Switch

  1. Remove the relaxion comfort switch.

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

Relaxion Comfort Seat Unit (RCS)

  1. Disconnect the negative battery cable.

  2. Remove the front passenger seat assembly.

    (Refer to Body - "Front Seat Assembly")

  3. Loosen the mounting screws of the occupant detection sensor (A).

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

  5. Disconnect the side airbag connector (B) by releasing the lock clip (A).

  6. Remove the retaining clips of the RCS unit (A).

  7. Disconnect the connectors of the RCS unit (A).

  8. Loosen the mounting screws of the RCS unit (A).

  9. Remove the RCS unit (A).

Installation

  1. Install in the reverse order of removal.

Test yourself

A quick Kia Optima DL3 quiz: every answer comes with an explanation and a link to the manual page.