Smart Key Diagnosis

Repair Procedures

Inspection

Self-Diagnosis with Scan Tool. This can quickly diagnose SMART KEY system faults using KDS/GDS. KDS/GDS can forcibly operate actuators, monitor input/output values, and perform self-diagnosis. The following three functions are critical 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 KDS/GDS cable to the data link connector at the lower panel on the driver's side, then turn on the KDS/GDS.
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 view the status of each switch on the scan tool after connecting the "Current Data" process.

    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
    The communication diagnosis checks that all linked components operate normally.
13. 13
    Connect the KDS/GDS cable to the data link connector on the lower instrument panel on the driver side.
14. 14
    After turning the ignition switch ON, select "DTC".

    

15. 15
    Connect the KDS/GDS cable to the data link connector on 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 using KDS/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 smart key battery voltage.
20. 20
    Antenna Activation

    • Interior Antenna 1
    • Interior Antenna 2
    • Bumper Antenna
    • Driver Door Antenna
    • Auxiliary Door Antenna
21. 21
    Connect the KDS/GDS cable to the data link connector on 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 using KDS/GDS.

    

    

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

    • Interior Antenna 1
    • Interior Antenna 2
    • Bumper Antenna
    • Driver Door Antenna
    • Auxiliary Door Antenna
27. 27
    Connect the KDS/GDS cable to the data link connector on the lower instrument panel on the driver side.
28. 28
    After turning the ignition switch ON, select "KEY FOB STATUS INFO".

    

    

29. 29
    Connect the KDS/GDS cable to the data link connector on the lower instrument panel on the driver side.
30. 30
    After turning the ignition switch ON, select "SMK STATUS INFO".

    

    

31. 31
    Connect the KDS/GDS cable to the data link connector on 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, Communication Diagnosis using KDS/GDS (Self-Diagnosis), Antenna Trigger Diagnosis. Check Antenna Status, Check FOB Status, Check Smart Key Status, Check Neutralization Status.