Kia Optima: Audio/AVN System / Steering Wheel Remote Controller (SWRC)

Kia Optima DL3 2019-2025 Service and Repair Manual / Body Electrical System / Audio/AVN System / Steering Wheel Remote Controller (SWRC)

Components and components location

Components

1. Left remote control switch (Audio + Bluetooth + Voice)

2. Right remote control switch (Trip + SCC + LFA)

Schematic diagrams

Circuit Diagram

[Audio + Bluetooth + Voice]

[Trip + SCC + LFA]

Repair procedures

Removal

1.	Disconnect the negative battery terminal.

2.	Remove the steering wheel assembly. (Refer to Steering System - "Steering Wheel")

3.	Loosen the mounting screws (A).

4.	Remove the steering wheel remote controller assembly (A) by loosening the mounting screws.

5.	Disconnect the steering wheel remote controllers connectors (A).

6.	Remove the steering wheel remote controllers (A) by pushing the hooks in the direction of arrow. [LH] [RH]

Installation

1.	Install in the reverse order of removal.

Inspection

Check for resistance between terminals in each switch position.

[Audio + Bluetooth + Voice]

Switch	Connector terminal	Resistance (±3%)
SEEK Up	1-6	430 Ω
SEEK Down		1.11 kΩ
MODE		2.11 kΩ
MUTE		3.11 kΩ
Volume (+)		4.61 kΩ
Volume (-)		6.81 kΩ
Voice		10.71 kΩ
END		18.91 kΩ
SEND		40.91 kΩ

[Trip + SCC + LFA]

Switch	Connector terminal	Resistance (±3%)
Pause	2-6	610 Ω
Speed (Down)		910 Ω
Speed (Up)		1.38 kΩ
Cruise ON/OFF		2.13 kΩ
SCC		7.93 kΩ
Trip group	1-6	610 Ω
Trip (Up)		910 Ω
Trip (Down)		1.38 kΩ
Trip (OK)		2.13 kΩ
LFA		7.93 kΩ

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