Smart Key Diagnostic Procedures

Inspection

Self-diagnosis using Scan Tool: It can quickly diagnose SMART KEY system faults with GDS. GDS can forcibly operate actuators, monitor input/output values, and perform self-diagnosis. The following three functions are key items in the SMART KEY system.

1. 1
   SMART KEY Device Input Problem.
2. 2
   SMART KEY Unit Problem.
3. 3
   SMART KEY Device Output Problem.
4. 4
   SMART KEY Unit Input Problem: Switch Diagnosis
5. 5
   SMART KEY Unit Problem: Communication Diagnosis
6. 6
   SMART KEY Unit Output Problem: Antenna and Switch Diagnosis
7. 7
   Connect the GDS cable to the data link connector located on the driver side lower panel, then turn on the GDS power.
8. 8
   Select the vehicle model, then select the SMART KEY system.
9. 9
   Select "SMART KEY Device".
10. 10
    After turning the IG on, select "Current Data".

    

11. 11
    You can check the position of each switch on the scan tool after connecting it, using the "Current Data" function.

    Display	Description
    FL Switch SW	ON: The driver's door handle button is on.
    FR Switch SW	ON: The auxiliary door handle button is on.
    Trunk Open SW	ON: The trunk lid button is on.
    Gear Position P	ON: The shift lever is in the P position.
    IGN 1	ON: The IGN switch is in the IG position.
    ACC	ON: The IGN switch is in the ACC position.
    Brake SW	ON: The brake switch is on.

12. 12
    Communication diagnosis checks whether each related component operates normally.
13. 13
    Connect the GDS cable to the data link connector (DLC) at the lower instrument panel on the driver side.
14. 14
    After turning the ignition switch ON, select "DTC".

    

15. 15
    Connect the GDS cable to the data link connector (DLC) at the lower instrument panel on the driver side.
16. 16
    After turning the ignition switch ON, select "Active Test".

    

17. 17
    Place the smart key near the corresponding antenna and operate it with GDS.
18. 18
    If the smart key LED blinks, the smart key is normal.
19. 19
    If the smart key LED does not blink, check the voltage of the smart key battery.
20. 20
    Antenna Activation

    • INTERIOR Antenna 1
    • INTERIOR Antenna 2
    • Trunk Antenna
    • BUMPER / Trunk Antenna
    • DRV_DR Antenna
    • AST_DR Antenna
21. 21
    Connect the GDS cable to the data link connector (DLC) at the lower instrument panel on the driver side.
22. 22
    Select "Antenna Status Check".

    

23. 23
    After turning the IG switch ON, select "Antenna Status Check".

    

24. 24
    Place the smart key near the corresponding antenna and operate it with GDS.

    

    

25. 25
    If the Smart Key operates normally, the corresponding antenna, Smart Key (transmission, reception) and external receiver are normal.
26. 26
    Antenna Status

    • INTERIOR Antenna 1
    • INTERIOR Antenna 2
    • BUMPER / Trunk Antenna
    • DRV_DR Antenna
    • AST_DR Antenna
27. 27
    Connect the GDS cable to the data link connector (DLC) at the lower instrument panel on the driver side.
28. 28
    After turning the IG ON, select "FOB Key Status Information".

    

    

29. 29
    Connect the GDS cable to the data link connector (DLC) at the lower instrument panel on the driver side.
30. 30
    After turning the IG ON, select "SMK Status Information".

    

    

31. 31
    Connect the GDS cable to the data link connector (DLC) at the lower instrument panel on the driver side.
32. 32
    After turning the ignition switch ON, select "Neutralization Mode".

    

    

    

    

Therefore, the following three diagnoses are the main troubleshooting process. Switch Diagnosis, GDS Communication Diagnosis (Self-diagnosis), Antenna Operation Diagnosis. Antenna Status Check, FOB Status Check, Smart Key Status Check, Neutralization Status Check.