Hyundai Sonata: Ignition Switch Assembly / Repair procedures

Replacement

1.	Disconnect the negative (-) battery terminal.

2.	Remove the crash pad lower panel. (Refer to Body - "Crash Pad")

3.	Remove the steering column upper & Lower shroud.

4.	Remove the ignition switch (A) and disconnecting the Key Warning / immobilizer connector.

5.	If it is necessary to remove the key lock cylinder (A), remove the key lock cylinder (A) after pushing lock pin (B) with key ACC.

6.	Installation is the reverse of removal procedure.

Inspection

1.	Disconnect the ignition switch connector (A) and key warning switch connector (B) from under the steering column.

2.	Check for continuity between the terminals.

3.	If continuity is not specified, replace the switch.

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Hyundai Sonata LF 2014-2019 Service Manual: Driver Airbag (DAB) Module and Clock Spring Description and Operation
Description Driver Airbag (DAB) is installed in the steering wheel and electrically connected to SRSCM via the clock spring. It protects the driver by deploying the airbag when frontal crash occurs. The SRSCM determines deployment of the Driver Airbag (DAB). Never att ...