Kia Optima Hybrid: Audio / Audio Remote Control Repair procedures

Inspection
1.
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.
3.
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 ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Trip Switch Repair procedures


Inspection 1. Check the audio remote control switch for resistance between terminals in each switch position. [Trip + Reset] SwitchConnector terminalResistance (±5%)Reset3 - 5 (LH)5.54 k?Trip3 - 5 (LH)2.54 k? [Trip + Mute + Reset] SwitchConnector terminalResistance (±5%)Mute3-40 ?Trip (General option)2-52.55 ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Repair procedures


Fuel Pressure Test 1. Release the residual pressure in fuel line (Refer to “Release Residual Pressure in Fuel Line” in this group).     When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the GDS after completion of “Release Residual Pressure ...

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