Kia Cadenza: Smart key System / Smart key unit Repair procedures

Kia Cadenza YG 2016-2024 Service Manual / Body Electrical System / Smart key System / Smart key unit Repair procedures

Inspection

Smart Key Unit

–	Refer to the BE group - inspection / self diagnosis with GDS.

Smart Key Switch

–	Refer to the BE group - inspection / self diagnosis with GDS.

Antenna

–	Refer to the BE group - inspection / self diagnosis with GDS.

Trunk Lid Open Switch

1.	Check for continuity between the Trunk lid open switch terminals.

2.	If continuity is not specified, inspect the switch

Removal

Smart Key Unit

1.	Disconnect the negative (-) battery terminal.

2.	Remove the glove box housing. (Refet to Body - "Crash Pad")

3.	Disconnet the connector (A) after loosening the mounting screws and bolt. And then remove the SMK unit (B).

RF Receiver

–	Take care not to scratch the crash pad and related parts

1.	Disconnect the negative(-) battery terminal.

2.	Remove the rear seat. (Refer to Body - "Rear Seat")

3.	Remove the rear package tray. (Refer to Body - "Rear Package Tray")

4.	Disconnect the RF receiver connector (A).

5.	Remove the RF receive (A) after loosening the nut (1EA).

Interior 1 Antenna

1.	Disconnect the negative(-) battery terminal.

2.	Remove the center console. (Refer to Body - "Console")

3.	Remove the interior 1 antenna (A) after disconnecting the connector and loosening the mounting nuts (2EA).

Interior 2 Antenna

1.	Disconnect the negative(-) battery terminal.

2.	Remove the center console. (Refer to Body - "Console")

3.	Disconnect the interior 2 antenna connector (A).

4.	Remove the interior 1 antenna (A) after loosening the mounting nuts (2EA).

Trunk Antenna

1.	Disconnect the negative(-) battery terminal.

2.	Remove the trunk transverse trim. (Refer to Body - "Interior Trim")

3.	Disconnect the trunk antenna connector (A) and remove the trunk antenna (B) after loosening nut (2EA).

Exterior Bumper Antenna

1.	Disconnect the negative(-) battery terminal.

2.	Remove the rear bumper. (Refer to Body - "Rear Bumper")

3.	Disconnect the exterior bumper antenna connector on rear bumper center part.

4.	Disconnect the antenna connector and remove the exterior bumper antenna (A) after loosening the screws (2EA).

Buzzer

1.	Disconnect the negative(-) battery terminal.

2.	Remove the left side wheel guard.

3.	Remove the external buzzer (A) after disconnecting the connector.

Door Outside Handle

1.	Disconnect the negative (-) battery terminal.

2.	Disconnect the connector after removing the door trim. (Refer to the BD group - "Front door")

3.	Loosen the mounting bolt, then remove the door handle cover and door lock (A).

4.	Remove the outside handle (A) by sliding it rearward.

5.	Disconnect the door outside handle connector (A).

Trunk lid open switch

1.	Disconnect the negative(-) battery terminal.

2.	Remove the trunk door trim. (Refer to Body - "Trunk")

3.	Disconnect the trunk lid open switch connector (A).

4.	Remove the outside handle (A) after releasing the fixed hooks.

Installation

Smart Key Unit

1.	Install the smart key unit.

2.	Install the smart key unit and connectors.

3.	Install the glove box housing.

4.	Install the negative (-) battery terminal and check the smart key system.

RF Receiver

1.	Install the RF receiver.

2.	Install the rear package tray.

3.	Install the rear seat.

4.	Install the negative (-) battery terminal and check the smart key system.

Interior 1 Antenna

1.	Install the interior 1 antenna.

2.	Install the center console.

3.	Install the negative (-) battery terminal and check the smart key system.

Interior 2 Antenna

1.	Install the interior 2 antenna.

2.	Install the center console.

3.	Install the negative (-) battery terminal and check the smart key system.

Trunk Antenna

1.	Install the trunk antenna.

2.	Install the trunk tranverse trim.

3.	Install the negative (-) battery terminal and check the smart key system.

Exterior Bumper Antenna

1.	Install the exterior bumper antenna.

2.	Install the rear bumper.

3.	Install the negative (-) battery terminal and check the smart key system.

Buzzer

1.	Install the buzzer.

2.	Install the left side wheel guard.

3.	Install the negative (-) battery terminal and check the smart key system.

Trunk Lid Open Switch

1.	Install the trunk lid open switch.

2.	Install the trunk lid open trim.

3.	Install the negative (-) battery terminal and check the smart key system.

Door Outside Handle

1.	Install the outside handle.

2.	Install the door trim.

3.	Install the negative (-) battery terminal and check the smart key system.

Smart key unit Schematic Diagrams

Circuit Diagram ...

Keyless Entry And Burglar Alarm

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