Kia Optima Hybrid: Audio / Audio Remote Control Repair procedures

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual / Body Electrical System / Audio / Audio Remote Control Repair procedures

Inspection

Check the audio remote control switch (A) for resistance between connector terminals in each switch position.

[LH-Audio]

[LH-Mute]

[Audio]

Switch	Connector terminal	Resistance (±5%)
Volume down	2-7	6.81 k?
Volume up	2-7	4.61 k?
Mode	2-7	2.11 k?
Seek up	2-7	1.11 k?
Seek down	2-7	430 ?

[Bluetooth + Voice]

Switch	Connector terminal	Resistance (±5%)
Bluetooth off	2-5	12.1 k?
Bluetooth on	2-5	34.1 k?
Voice	2-5	3.9 k?

[Mute + Trip + Reset]

Switch	Connector terminal	Resistance (±5%)
Mute	3-4	0 ?
Trip (General option)	2-5	2.55 k?
Reset (General option)	2-5	5.55 k?
Trip (Cruise option)	2-5	1.1 k?
Reset (Cruise option)	2-5	4.1 k?

Removal

1.	Disconnect the negative (-) battery terminal.

2.	Remove the driver airbag module. (Refer to the RT group)

3.	Remove the steering wheel. (Refer to the ST group - "Steering column & shaft")

4.	Remove the steering wheel cover (A) after loosening the screws.

5.	Remove the steering wheel remote control switch connector (A) after loosening the mounting screws. [LH-Audio] [LH-Mute]

Installation

1.	Reassemble the steering wheel remote control switch after connecting the connector.

2.	Reassemble the steering wheel.

Reassemble the driver airbag module.

Make sure the audio remote control switch and the airbag module connectors are plugged in properly.

Audio Remote Control Schematic Diagrams

Circuit Diagram ...

Multimedia jack Schematic Diagrams

Circuit Diagram ...

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