Hyundai Accent (HC): Body Electrical System / Smart Key System

Contents:

• Specifications
• Components and Components Location
• Description and Operation
• Smart Key
• Smart Key Unit
• Smart Key Diagnostic

Specifications

- Specifications Smart Key Unit

Items	Specification
Rated voltage	DC 12V
Operating voltage	DC 9 - 16V
Operating temperature	-22°F to 167°F (-30°C to 75°C)
Load	Max. 4mA (When welcome light function off)

RF Receiver

Items	Specification
Frequency	433.92 Mhz
Antenna type	FSK (Frequency Shift Keying)

Smart Key Fob

Items	Specification
Battery	Lithium battery 3V 1EA
Distance	30m from vehicle, RF : 30m, Passive(LF) : 0.7m
Battery life	More than 2 years (10 times / a day) An inappropriately disposed battery can be harmful to the environment and human health. Dispose the battery according to your local law(s) or regulation.

Push buttons
3 (Door lock / unlock, Tailgate)

Frequency(Rx)
125 kHz

Frequency(Tx)
315 MHz

Numbers
2EA

Antenna

Items	Specification
Rated voltage	DC 12V
Operating voltage	DC 9 - 16V
Operating temperature	-22°F to 167°F (-30°C to 75°C)
Frequency	125kHz
Numbers	Interior(3EA), Door(2EA), Bumper(1EA)

Components and Components Location

- Component Location

1. Smart key unit
2. Interior antenna 1
3. Interior antenna 2
4. Interior antenna 3
5. Buzzer
6. Electronic steering column lock (ESCL)
7. Door outside handle antenna
8. Bumper antenna

Description and Operation ➤

Smart Key

- 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 GDS.

2.Select the 'S/W Management' and 'Car model'.

3.Select the 'Smart Key Unit' and 'Smart Key Code Saving'.

4.Follow the instructions on the screen.

Smart Key Unit

- Components

Connector Pin Information

No	Connector A	Connector B	Connector C
1	-	IGN 2 Relay output	Battery (+)
2	SSB Switch 1 input	P CAN Low	-
3	Driver outside handle switch input	P CAN High	Immobilizer antenna power output
4	-	B CAN High	Outside handle antenna driver power output
5	-	B CAN Low	Outside handle antenna assist power output
6	-	SSB Illumination (amber) output	Bumper antenna power output
7	RPM input	-	Interior antenna 1 power output
8	Start feedback input	SSB Illumination (+) output	Interior antenna 2 power output
9	IGN 2	ESCL Enable output	Interior antenna 3 power output
10	-	Battery (+) power	-
11	Starter relay output	IGN 1 Relay output	-
12	Power1 ground	ESCL COM	-
13	SSB Switch 2 input	EMS COM	ESCL (-) Output
14	Assist outside handle switch input	-	Immobilzer antenna ground output
15	-	SSB Illumination (-)output	Outside handle antenna drvier ground output
16	P Position input / Clutch switch input	SSB Illumination (Blue) output SSB Illumination (Red) output	Outside handle antenna assist ground output
17	ESCL Unlock switch input	-	Bumper antenna ground output
18	Wheel speed sensor input	Exterior buzzer output	Interior antenna 1 groud output
19	ACC input	-	Interior antenna 2 groud output
20	IGN 2	ESCL (+) output	Interior antenna 3 groud output
21	Brake switch input		-
22	ACC Relay output		Ground power 2

- Circuit Diagram

- 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 (A) after loosening the nuts and disconnecting the connectors (B).

Interior 1 Antenna

1.Disconnect the negative (-) battery terminal.

2.Remove the glove box upper cover.(Refer to Body - "Glove Box Upper Cover Assembly")

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

Interior 2 Antenna

1.Disconnect the negative (-) battery terminal.

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

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

Interior 3 Antenna

1.Disconnect the negative (-) battery terminal.

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

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

Exterior Bumper Antenna

1.Disconnect the negative (-) battery terminal.

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

3.Remove the exterior bumper antenna (A) after loosening the mounting nuts and disconnecting the antenna connector (B).

Buzzer

1.Disconnect the negative (-) battery terminal.

2.Remove the front bumper cover.(Refer to Body - "Front Bumper Cover")

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

Door Outside Handle

1.Disconnect the negative (-) battery terminal.

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

3.Disconnect the front door outside handle connector (A) and then remove the wiring mounting clip (B).

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

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

- 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 2 and No 4.

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

- 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 crash pad center fascia panel.

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

Interior 2 Antenna

1.Install the interior 2 antenna.

2.Install the console rear complete assembly.

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

Interior 3 Antenna

1.Install the interior 3 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.

Smart Key Diagnostic

- Inspection Self Diagnosis With Scan Tool It will be able to diagnose defects of SMART KEY system with Diagnostic tool quickly. Diagnostic tool can operates actuator forcefully, input/output value monitoring and self diagnosis.The following three features will be major problem in SMART KEY system.

1.Problem in SMART KEY unit input.

2.Problem in SMART KEY unit.

3.Problem in SMART KEY unit output.

So the following three diagnosis operates will be the major problem solution process.

1.SMART KEY unit Input problem : switch diagnosis

2.SMART KEY unit problem : communication diagnosis

3.SMART KEY unit Output problem : antenna and switch output diagnosis

Switch Diagnosis

1.In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (Diagnostic tool).The diagnostic system(Diagnostic tool) provides the following information.

(1)Fault Code Searching : Checking failure and code number (DTC)

(2)Data Analysis : Checking the system input/output data state

(3)Actuation test : Checking the system operation condition

(4)S/W Management : Controlling other features including system option setting and zero point adjustment

2.If diagnose the vehicle by Diagnostic tool, select "DTC Analysis" and "Vehicle".

3.If check current status, select the "Data Analysis" and "Car model".

4.Select the SMK' to be checked in order to check the vehicle with the tester.

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

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.
Tailgate open SW	ON : Tailgate 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.

Fault Code Searching

1.Fault code searching that the each linked components operates normal.

2.Connect the cable of Diagnostic tool to the data link connector in driver side crash pad lower panel.

3.Select the 'Fault Code Searching' and 'Car model'.

Antenna Actuation Diagnosis

1.Connect the cable of Diagnostic tool to the data link connector in driver side crash pad lower panel.

2.Select the 'Actuation Test' and 'Car model'.

3.Set the smart key near the related antenna and operate it with a Diagnostic tool.

4.Set the smart key near the related antenna and operate it with a Diagnostic tool.

5.If the LED of smart key is blinking, the smart key is normal.

6.If the LED of smart key is not blinking, check the voltage of smart key battery.

7.Antenna actuation

– Interior Antenna 1

– Interior Antenna 2

– Bumper Antenna

– Driver Door Antenna

– Assist Door Antenna

Antenna Status Check

1.Connect the cable of Diagnostic tool to the data link connector in driver side crash pad lower panel.

2.Select the 'S/W Management' and 'Car model'.

3.Select the 'Smart Key Unit' and 'Antenna Status Check'.

4.Set the smart key near the related antenna and operate it with a Diagnostic tool.

5.If the smart key runs normal , the related antenna, smart key (transmission, reception) and exterior receiver are normal.

6.Antenna status

– Interior Antenna 1

– Interior Antenna 2

– Bumper Antenna

– Driver Door Antenna

– Assist Door Antenna

FOB Status Check

1.Connect the cable of Diagnostic tool to the data link connector in driver side crash pad lower panel.

2.Select the 'S/W Management' and 'Car model'.

3.Select the 'Smart Key Unit' and 'FOB KEY STATUS IMFORMATION'.

Smart Key Status Check

1.Connect the cable of Diagnostic tool to the data link connector in driver side crash pad lower panel.

2.Select the 'S/W Management' and 'Car model'.

3.Select the 'Smart Key Unit' and 'SMK STATUS INFORMATION'.

Neutralization Status Check

1.Connect the cable of Diagnostic tool to the data link connector in driver side crash pad lower panel.

2.Select the 'S/W Management' and 'Car model'.

3.Select the 'Smart Key Unit' and 'Neutralization Mode'.