Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSKIA2011OPTIMA L4-2.0L TURBOREPAIR AND DIAGNOSISLIGHTING AND HORNSTURN SIGNALSCOMBINATION SWITCHSERVICE AND REPAIRREPAIR PROCEDURES
2011 Kia Optima L4-2.0L Turbo
Repair Procedures
2011 Kia Optima L4-2.0L TurboSECTION Repair Procedures
Inspection
Lighting Switch Inspection
With the multifunction switch in each position, make sure that continuity exists between the terminals below. If continuity is not as specified, replace the multi-function switch.
Lighting Switch (Auto Light)
Lighting Switch
Dimmer And Passing Switch
HU : Head lamp high beam
HL : Head lamp low beam
P : Head lamp passing switch
Turn Signal Switch
Front Fog Lamp Switch
Wiper And Washer Switch Inspection
With the multifunction switch in each position, make sure that continuity exists between the terminals below. If continuity is not as specified, replace the multi-function switch.
Wiper Switch
Washer Switch
Inspection (With GDS)
1. Check BCM input/output specification of multifunction switch using the GDS. If the specification is abnormal, replace the lamp or wiper switch.
2. If diagnosis is required on the multifunction switch, select model and "BCM".
3. To consult the present input/output value of BCM, "Current DATA". It provides information of BCM input/output conditions of power supply, turn signal/brake lamp, headlamp, door, locks, outside mirror, wiper, auto-light and transmitters etc.
4. To perform compulsory operation on BCM input factors, select "ACTUATION TEST".
Removal
1. Disconnect the negative (-) battery terminal.
2. Remove the steering wheel.
3. Remove the steering column upper and lower shrouds after removing 3 screws.
4. If it is necessary to remove. The wiper & washer switch (A) only, release the lock of wiper switch using tool without removing the steering wheel and the clock spring.
5. Disconnect the lighting switch connector (A) and wiper & washer switch connector (B).
6. Remove the steering wheel.
7. Remove the clock spring.
8. Remove the multifunction switch assembly (A) after loosening the mounting screws.
Installation
1. Install the multifunction switch.
2. Install the clock spring.
3. Install the steering column upper and lower shrouds.
4. Install the steering wheel.
NOTE:
Make sure the multifunction switch connectors are plugged in properly.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.