Hyundai i-30: Smart Key System / Smart Key Unit

Hyundai i30 (PD) 2018-2024 Service Manual / Body Electrical System / Smart Key System / Smart Key Unit

Components and components location
Components

No
Connector A
Connector B
Connector C
1
-
IGN 2 Relay output
Battery signal
2
SSB Switch 1 input
C CAN (Low)
-
3
Driver door antenna switch input
C CAN (High)
Immoblizer antenna power
4
-
B CAN (High)
Driver out side handle antenna power
5
-
B CAN (Low)
Assist out side handle antenna power
6
-
SSB Illumination (orange)
Bumper antenna power
7
RPM Input
-
Interior antenna 1 power
8
Start signal feedback input
SSB Illumination (+) output
Interior antenna 2 power
9
clutch switch input
ESCL enable output
Interior antenna 3 power
10
-
Battery power
-
11
Starter relay output
IGN 1 Relay output
-
12
Power 1
ESCL COM
-
13
SSB Switch 2 input
EMS COM
ESCL (-) output
14
Assist door antenna switch input
-
Immoblizer antenna ground
15
-
SSB Illumination (-) output
Driver out side handle antenna ground
16
Clutch switch input
SSB LED Output
Assist out side handle antenna ground
17
ESCL unlock swtich input
SSB LED IGN Output
Bumper antenna ground
18
Wheel speed sensor input
External buzzer
Interior antenna 1 ground
19
ACC Input
-
Interior antenna 2 ground
20
IGN 1
ESCL (+) output
Interior antenna 3 ground
21
Brake switch input

-
22
ACC Relay input
GND Power 2

Schematic diagrams
Circuit Diagram

Repair procedures
Removal
Smart Key Unit
1.
Disconnect the negative (-) battery terminal.
2.
Remove the glove box uper cover assembly.
(Refer to Body - "Glove Box uper Cover Assembly")
3.
Remove the smart key unit (A)

4.
Disconnect the smart key unit connectors (A).

Interior 1 Antenna
  
Take care not to scratch the crash pad and related parts.
1.
Disconnect the negative (-) battery terminal.
2.
Remove the floor console front tray.
(Refer to Body - "Floor Console Assembly")
3.
Remove the interior 1 antenna (A) after loosening the mounting nuts and disconnecting the connector (B).

Interior 2 Antenna
1.
Disconnect the negative (-) battery terminal.
2.
Remove the floor console assembly.
(Refer to Body - "Floor Consle Assembly.)
3.
Remove the rear bumper antenna (A) after loosening the mounting screws and disconnecting the connector (B).

Rear Bumper Antenna
1.
Disconnect the negative (-) battery terminal.
2.
Remove the rear bumper cover.
(Refer to Body - "Rear Bumper Cover")
3.
Remove the rear bumper antenna (A) after loosening the mounting screws and disconnecting the connector (B).

Buzzer
1.
Disconnect the negative (-) battery terminal.
2.
Remove the front left wheel guide.
(Refer to Body - "Front Wheel Guard")
3.
Remove the buzzer (B) after disconnecting the connector (A).

Door Outside Handle
1.
Disconnect the negative (-) battery terminal.
2.
Remove the front outside door handle.
(Refer to Body - "Front Door Outside Handle")

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

2.
Check for continuity between terminals No 3 and No 6.

No
Description
1
Door antenna (+)
2
Pocket lamp LED (+)
3
Door lock/unlock button switch
4
Door antenna (-)
5
Pocket lamp LED (-)
6
Door lock/unlock button switch ground

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 glove box.
4.
Install the negative (-) battery terminal and check the smart key system.
Interior 1 Antenna
1.
Install the interior 1 antenna.
2.
Install the glove box uper cover assembly.
(Refer to Body - "Glove Box Uper Cover 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 floor console assembly.
(Refer to Body - "Floor Console Assembly")
3.
Install the negative (-) battery terminal and check the smart key system.
Rear bumper antenna
1.
Install the rear bumper antenna.
2.
Install the rear bumper cover.
3.
Install the negative (-) battery terminal and check the smart key system
Door Outside Handle
1.
Install the outside handle.
2.
Install the front outside door handle.
3.
Install the negative (-) battery terminal and check the smart key system.

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