Hyundai Sonata: Repair procedures - Multifunction switch - Body Electrical SystemHyundai Sonata: 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.
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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

Hazard Switch

※ FL : Flash unit
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)

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.
(Refer to the ST group - "Steering column & shaft")
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.
(Refer to the ST group - "Steering column & shaft")
7.
Remove the clock spring.
(Refer to the RT group - "Airbag module")
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.
Make sure the multifunction switch connectors are plugged in properly.

    Horn
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