Hyundai Creta: Smart Key System / Smart Key Unit

Hyundai Creta GS 2014-2023 Service Manual / Body Electrical System / Smart Key System / Smart Key Unit

Components and components location

Components

Connector Pin Information

No	Connector A	Connector B	Connector C
1	BATT (+)	Driver out side handle antenna (Ground)	ESCL (ground)
2	BATT (+)	Driver out side handle antenna (Power)	ESCL Unlock switch
3	IGN 1	-	ESCL Enable
4	IGN 2 relay	Body CAN (High)	-
5	IGN 1 relay	Body CAN (Low)	SSB Illumination (Blue)
6	-	Wheel speed sensol	SSB Illumination (Amber)
7	-	Inhibit P (AT Only) Clutch switch (MT Only)	SSB Illumination (+)
8	Interior antenna 2 (Ground)	-	SSB Illumination (-)
9	Interior antenna 1 (Ground)	Chassis CAN (Low)	Immobilizer antenna (Ground)
10	Bumper antenna (Ground)	Chassis CAN (High)	Immobilizer antenna (Power)
11	ACC	Ground	-
12	IGN 2	Ground	Start feedback
13	ACC relay	-	Stop lamp fuse
14	Start relay	Driver out side handle switch	Brake switch
15	ESCL (+)	-	-
16	-	EMS_communication	Exterior buzzer
17	-	ESCL_communication
18	Interior antenna 2 (Power)	RPM
19	Interior antenna 1 (Power)	SSB switch 2
20	Bumper antenna (Power)	SSB switch 1

Schematic diagrams

Circuit Diagram

Repair procedures

Removal

Smart Key Unit

1.	Disconnect the negative (-) battery terminal.

2.	Remove the glove box. (Refer to Body - "Glove Box Housing")

3.	Remove the smart key unit (B) after loosening the mounting bolts(2EA) and disconnecting the connector (A).

Interior 1 Antenna

1.	Disconnect the negative (-) battery terminal.

2.	Remove the console rear complete assembly. (Refer to Body - "Floor Console Assembly")

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

Interior 2 Antenna

1.	Disconnect the negative (-) battery terminal.

2.	Remove the rear transvers trim. (Refer to Body - "Trunk Trim")

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

Exterior Bumper Antenna

1.	Disconnect the negative (-) battery terminal.

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

3.	Disconnect the antenna connector (A) on the center of rear bumper.

4.	After loosening the screws (2EA), remove the exterior bumper antenna (B).

Buzzer

1.	Disconnect the negative (-) battery terminal.

2.	Remove the front left wheel guide.

3.	Disconnect the connector (A) then remove the buzzer (B).

Door Outside Handle

1.	Disconnect the negative (-) battery terminal.

2.	Remove the front door trim. (Refer to Body - "Front Door Trim")

3.	Remove the door outside handle cover (A) after seperating the plug hole (B) from the door and loosening the mounting bolt.

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

5.	Disconnect the front door outside handle connector (A) and then remove the wiring mounting clips.

Tailgate Open Switch

1.	Disconnect the negative (-) battery terminal.

2.	Remove the tailgate trim. (Refer to Body - "Tailgate Trim")

3.	Remove the tailgate garnish (A) disconnecting the connectors (B) and loosenng the mounting nuts.

4.	Remove the tailgate switch (A) after seperating the license lamp wiring.

Inspection

Smart Key Unit

Refer to Smart Key System - "Smart Key Diagnostic"

Smart Key Switch

Refer to Smart Key System - "Smart Key Diagnostic"

Antenna

Refer to Smart Key System - "Smart Key Diagnostic"

Door Outside Handle

1.	Remove the front door trim. (Refer to Body - "Front Door Trim")

2.	Disconnect the front door outside handle connector.

Check for continuity between terminals No 1 and No 3.

No	Description
1	Door antenna 1
2	Door lock/unlock button 1
3	Door antenna 2
4	Door lock/unlock button 2

Tailgate Switch

1.	Check for continuity between the tailgate switch terminals.

2.	If continuity is not specified, inspect the switch

Installation

Smart Key Unit

1.	Install the smart key unit.

2.	Install the smart key unit mounting bolts and connect the connector.

3.	Install the driver side crash pad lower panel.

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

Interior 1 Antenna

1.	Install the interior 1 antenna.

2.	Install the console rear complete assembly.

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

Interior 2 Antenna

1.	Install the interior 2 antenna.

2.	Install the rear transvers 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 cover.

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

Buzzer

1.	Install the buzzer.

2.	Install the front left wheel guide.

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.

Tailgate Switch

1.	Install the tailgate switch.

2.	Install the tailgate garnish.

3.	Install the tailgate trim.

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

Smart Key: Repair procedures

Smart Key Smart Key Code Saving 1. Connect the DLC cable of GDS to the data link connector (16 pins) in driver side crash pad lower panel, turn the power on GD ...

Smart Key Diagnostic: Repair procedures

Inspection Self Diagnosis with GDS Smart key system defects can be quickly diagnosed with the GDS. GDS operates actuator quickly to monitor, input/output value and self diagnosi ...

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