Kia Soul EV: Smart Key System / Smart Key Diagnostic Repair procedures

Kia Soul EV (PS EV) 2015-2020 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 quickly operates actuator to monitor input/ouput values and self diagnose.

The followings are the major problems 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 and 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".

This menu shows you the status of each switch on scanner after it''s been connected to 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 switch	ON : Trunk 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 for normal operation in each component.

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 corresponding antenna and operate it using 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

–	Trunk 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 corresponding antenna and operate it using GDS.

5.	If the smart key operates normally, it means that the corresponding antenna, smart key (transmission & reception) and exterior receiver are also normal.

Antenna status

–	INTERIOR Antenna

–	Trunk 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 IGN ON, select the "Receiver Communication Line Check".

4.	Check the serial communication line with a GDS.

5.	If the smart key operates normally, it means that the communication of smart key unit and exterior receiver are also normal.

In case of abnormal operation of smart key, check the following items:

–	Disconnected or not responding 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 shaded area and check that the IG is ON.

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

3.	Check the interior antenna ignition mode.

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

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

FOB Status Check

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

2.	After IGN ON, select the "FOB KEY STATUS INFORMATION".

Smart Key Status Check

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

2.	After IGN ON, select the "SMK STATUS INFORMATION".

Neutralization Status Check

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

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

Input Signal List

No.	Item name	Unit
1	SSB SW1	-
2	SSB SW2	-
3	ACC	-
4	IGN1	-
5	IGN2	-
6	Gear ''P'' Position (A/T) Clutch SW (M/T)	-
7	Brake SW	-
8	FL Door Lock Button	-
9	FR Door Lock Button	-
10	Battery Voltage	-
11	Wheel Speed	-
12	RPM	-
13	Stop Lamp Fuse	-
14	Start Feed Back	-

Actuator List

No.	Item name	Condition
1	Immobilizer indicator Lamp (Cluster)	Ignition switch ON Engine off
2	External Buzzer	Ignition switch ON Engine off
3	Interior Antenna Active	Ignition switch ON Engine off
6	Bumper/trunk 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
9	SSB Illumination (OFF/ACC/ON)	Ignition switch ON Engine off
10	ACC/IGN1/IGN2 Relay	Ignition switch ON Engine off

Smart Key Unit Repair procedures

Inspection Smart Key Unit – Refer to Smart key System - "Smart key Diagnostic" Smart Key Switch – Refer to Smart key System - "Smart key Diagnostic" Antenna – Re ...

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