Switch Diagnosis

Connect the cable of GDS to the data link connector in driver side crash pad lower panel, turn the power on GDS.
Select the vehicle model and then SMART KEY system.

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Select the "SMART KEY unit".
After IG ON, select the "Current data".

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You can see the situation of each switch on scanner after connecting the "current data" process.

SWITCH DISPLAYS AND DESCRIPTIONS

Display	Description
FL Toggle SW	ON: Push button is ON in the driver door handle.
FR Toggle SW	ON: Push button is ON in the assist door handle.
Liftgate open SW	ON: Liftgate button is ON.
Gear P Position	ON: Shift lever is P position.
IGN 1	ON: IGN switch is IG position.
ACC	ON: IGN switch is ACC position.
Brake SW	ON: Brake switch is ON.