Hyundai Ioniq: Multifunction Switch / Repair procedures

Hyundai Ioniq (AE) 2017-2024 Service Manual / Body Electrical System / Multifunction Switch / Repair procedures

Removal

1.	Disconnect the negative (-) battery terminal.

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

3.	Remove the steering column upper and lower shrouds after loosening the screws. (Refer to Body - "Steering Column Shroud Panal")

4.	Remove the clock spring. (Refer to Restraint - "Driver Airbag (DAB) Module and Clock Spring")

5.	Disconnect the multifunction switch connector (A).

6.	Remove the multifunction switch assembly (A) after loosening the 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.

5.	Connect the negative (-) battery terminal.

Inspection

Multifunction Switch Inspection

Check for continuity between the terminals in each switch position according to the table.

[Left Handle Drive]

Switch	Switch position	Switch terminal	Resistance (Ω, ±3.5%)
Wiper switch	MIST	1-9	330
	OFF		∞
	Intermittent (AUTO)		800
	LOW		1800
	HIGH		5700
Wiper intermittent volume	Volume 1	7-9	330
	Volume 2		690
	Volume 3		1310
	Volume 4		2610
	Volume 5		7310
Fog lamp switch	OFF	9-10	∞
	Front foglamp		910
	Rear foglamp		2910
Turnsignal switch	OFF	9-12	∞
	Left		910
	Right		2910
Dimmer & Passing switch	OFF	9-13	∞
	Passing		910
	Dimmer		2910
Light switgh	OFF	9-14	∞
	AUTO / DRL		680
	Tail lamp		1680
	Low beam		5580

[Right Handle Drive]

Switch	Switch position	Switch terminal	Resistance (Ω, ±3.5%)
Wiper switch	MIST	3-16	330
	OFF		∞
	Intermittent (AUTO)		800
	LOW		1800
	HIGH		5700
Wiper intermittent volume	Volume 1	2-16	330
	Volume 2		690
	Volume 3		1310
	Volume 4		2610
	Volume 5		7310
Fog lamp switch	OFF	14-16	∞
	Front foglamp		910
	Rear foglamp		2910
Turnsignal switch	OFF	13-16	∞
	Left		910
	Right		2910
Dimmer & Passing switch	OFF	12-16	∞
	Passing		910
	Dimmer		2910
Light switgh	OFF	11-16	∞
	AUTO / DRL		680
	Tail lamp		1680
	Low beam		5580

Inspection (with GDS)

The body electrocal system can be quickly diagnosed failed parts with vehicle diagnostic system(GDS).

The diagnostic system (GDS) provides the following information.

(1)	Self diagnosis : Checking the failure code (DTC) and display

(2)	Current data : Checking the system input/output data state

(3)	Actuation test : Checking the system operation condition

(4)	Additional function : Other controlling such as he system option and zero point adjustment

2.	Select the "Car Model" and the system to be checked in order to check the vehicle with the tester.

3.	Select the "Body Control Module (BCM)" to check the multi function switch.

4.	Select the "Current Data" menu to search the current state of the input/output data. The input/output data for the sensors corresponding to the multi function switch can be checked.

Components and components location

C..

Horn

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