Kia Cee'd: Smart Key System / Smart Key Diagnostic Repair procedures

Kia Cee'd JD Service Manual / Body Electrical System / Smart Key System / 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 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.

The following three diagnostic solutions will be the main solution process to a majority of concerns.

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.	Connect the cable of GDS to the data link connector in driver side crash pad lower panel, turn the power on GDS.

2.	Select the vehicle model and then SMART KEY system.

3.	Select the "SMART KEY unit".

4.	After IG ON, select the "Current data".

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

Display	Description
FL Toggle switch	ON : Push button is ON in the driver door handle.
FR Toggle switch	ON : Push button is ON in the assist door handle.
Trunk/Tailgate switch	ON : Trunk/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.
Push Knob switch	ON : Push knob switch is ON.
External Buzzer	ON : Buzzer is ON.

Communication Diagnosis With GDS (Self Diagnosis)

1.	Communication diagnosis checks that the each linked components operates normal.

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

3.	After IG ON, select the "DTC".

Antenna Actuation Diagnosis

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

2.	After IG ON, select the "ACTUATION TEST".

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

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

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

Antenna actuation

–	INTERIOR Antenna 1

–	INTERIOR Antenna 2

–	Trunk/Tailgate antenna

–	BUMPER/Antenna

–	DRV_DR Antenna

–	AST_DR Antenna

Antenna Status Check

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

2.	Select the "Antenna Status Check".

3.	After IG ON, select the "Antenna Status Check".

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

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

Antenna status

–	INTERIOR Antenna 1

–	INTERIOR Antenna 2

–	Trunk/Tailgate antenna

–	BUMPER/Antenna

–	DRV_DR Antenna

–	AST_DR Antenna

Serial Communication Status Check

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

2.	Select the "Serial Communication Line Check".

3.	After IG ON, select the "Receiver Communication Line Check".

4.	Check the serial communication line with a GDS.

5.	If the smart key runs normal, the communication of smart key unit, exterior receiver are normal.

If the smart key runs abnormal, check the following items.

–	Disconnection or no response of the exterior receiver communication line.

–	The exterior receiver communication line disconnection and ground connection.

Interior Antenna Actuation Check

1.	Set the smart key in the following shade area and check the IG ON.

2.	If the ignition is ON, the antenna runs normal.

3.	Check the interior antenna ignition mode.

4.	Set the smart key in the following shade area and actuate the antenna. Check the LED of smart key is blinking.

5.	If the LED of smart key is not blinking, check the antenna in shade area.

FOB Status Check

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

2.	After IG ON, select the "FOB KEY STATUS INFO".

Smart Key Status Check

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

2.	After IG ON, select the "SMK STATUS INFO".

Neutralization Status Check

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

2.	After IG ON, select the "Neutralization mode".

Input Switch List

No	Item name	Unit
1	SSB switch2	-
2	ACC	-
3	IGN1	-
4	Gear 'P' Position	-
5	Brake switch	-
6	FL Door Lock Button	-
7	FR Door Lock Button	-
8	Trunk/Tailgate Lid switch	-
9	Battery Voltage	-
10	Alternator Voltage	-
11	KEY out Indicator Lamp	-
12	Immobilizer Lamp	-
13	External Buzzer	-

Actuator List

No.	Item name	Condition
1	Immo.indicator Lamp	Ignition switch ON Engine off
2	External Buzzer	Ignition switch ON Engine off
3	Interior Antenna 1 Active	Ignition switch ON Engine off
4	Interior Antenna 2 Active	Ignition switch ON Engine off
5	Trunk/Tailgate Antenna Active	Ignition switch ON Engine off
6	Bumper Antenna Active	Ignition switch ON Engine off
7	DRV DR Antenna Active	Ignition switch ON Engine off
8	AST DR Antenna Active	Ignition switch ON Engine off

Description and operation

Description The SMART KEY system is a system that allows the user to access and operate a vehicle in a very convenient way. To access the vehicle, no traditional key or remote co ...

Smart Key Repair procedures

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