Hyundai Kona: Smart Key System / Smart Key Diagnostic Repair procedures

Hyundai Kona (OS) 2018-2021 Service Manual / Body Electrical System / Smart Key System / Smart Key Diagnostic Repair procedures

Inspection
Self Diagnosis with Scan Tool
It will be able to diagnose defects of SMART KEY system with GDS quickly. GDS 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.
4.
SMART KEY unit Input problem : switch diagnosis
5.
SMART KEY unit problem : communication diagnosis
6.
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".
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.

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 "Actation 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.
6.
Antenna actuation
–
INTERIOR Antenna 1
–
INTERIOR Antenna 2
–
Trunk antenna
–
BUMPER/ Trunk 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.
6.
Antenna status
–
INTERIOR Antenna 1
–
INTERIOR Antenna 2
–
BUMPER/ Trunk Antenna
–
DRV_DR Antenna
–
AST_DR Antenna
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".
Smart Key Unit Repair procedures
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