Body Electrical System

Smart Key Diagnostic Procedures

43steps
~258min
4/5difficulty
Done 0 of 43

Inspection

Self-diagnosis with GDS: Smart key system defects can be quickly diagnosed using the GDS. The GDS quickly performs actuator control for input/output value monitoring and self-diagnosis. The main problems in the SMART KEY system are described below.
  1. SMART KEY Device Input Problem.
  2. SMART KEY Unit Problem.
  3. SMART KEY Device Output Problem.
  4. SMART KEY Unit Input Problem: Switch Diagnosis
  5. SMART KEY Unit Problem: Communication Diagnosis
  6. SMART KEY Unit Output Problem: Antenna and Switch Diagnosis
  7. Connect the GDS cable to the data link connector on the lower panel of the driver's side crash pad, and turn on the GDS power.
  8. Select the vehicle model, then select the SMART KEY system.
  9. Select "SMART KEY Device".
  10. After turning the IG on, select "Current Data".
  11. This menu shows the status of each switch on the scanner after it has been connected to the "current data" process.
    Display Description
    FL Switch ON: The driver's door handle button is on.
    FR Switch ON: The auxiliary door handle button is on.
    Main Switch ON: External line 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.
    Push Switch ON: Push switch is on.
    External Buzzer ON: Buzzer is on.
  12. Communication diagnosis checks the normal operation of each component.
  13. Connect the GDS cable to the data link connector (DLC) on the lower panel of the driver's side crash pad.
  14. After turning the ignition switch ON, select "DTC".
  15. Connect the GDS cable to the data link connector (DLC) on the lower panel of the driver's side crash pad.
  16. With the ignition switched ON, select "ACTUATOR TEST".
  17. Place the smart key near the corresponding antenna and operate it using the GDS.
  18. If the smart key LED blinks, the smart key is normal.
  19. If the smart key LED does not blink, check the smart key battery voltage.
  20. Antenna Activation
    • INTERIOR Antenna
    • Trunk Antenna
    • BUMPER/Antenna
    • DRV_DR Antenna
    • AST_DR Antenna
  21. Connect the GDS cable to the data link connector (DLC) on the lower panel of the driver's side crash pad.
  22. Select "Antenna Status Check".
  23. After turning the IG switch ON, select "Antenna Status Check".
  24. Place the smart key near the corresponding antenna and operate it using the GDS.
  25. If the smart key operates normally, this means the corresponding antenna, smart key (transmission and reception), and external receiver are also normal.
  26. Antenna Status
    • INTERIOR Antenna
    • Trunk Antenna
    • BUMPER/Antenna
    • DRV_DR Antenna
    • AST_DR Antenna
  27. Connect the GDS cable to the data link connector (DLC) on the lower panel of the driver's side crash pad.
  28. Select "Serial Link Check".
  29. With the ignition switched ON, select "Receiver Communication Line Check".
  30. Check the serial communication line using the GDS.
  31. If the smart key operates normally, this means the communication between the smart key unit and the external receiver is also normal.
  32. If the smart key does not operate normally, check the following items:
    • External receiver communication line is disconnected or not responding
    • Short of the external receiver communication line to ground.
  33. Place the smart key in the following shaded area and make sure the IG is ON.
  34. If the ignition is on, the antenna operates normally.
  35. Check the ignition mode of the internal antenna.
  36. Place the smart key in the following shaded area and activate the antenna. Make sure the smart key indicator blinks.
  37. If the smart key indicator does not blink, check whether the antenna is in a shaded area.
  38. Connect the GDS cable to the data link connector (DLC) on the lower panel of the driver's side crash pad.
  39. After turning the ignition ON, select "KEY FOB STATUS INFORMATION".
  40. Connect the GDS cable to the data link connector (DLC) on the lower panel of the driver's side crash pad.
  41. After IGN ON, select "SMK STATUS INFORMATION".
  42. Connect the GDS cable to the data link connector (DLC) on the lower panel of the driver's side crash pad.
  43. After IGN ON, select "Neutralization Mode".
The following three diagnostic procedures will be the main process for solving most problems. Switch diagnosis, GDS communication diagnosis (self-diagnosis), antenna operation diagnosis, antenna status check, serial communication status check, internal antenna operation check, FOB status check, smart key status check, neutralization status check, input signal list.
No. Item Name Unit
1 SSB SW1 -
2 SSB SW2 -
3 ACC -
4 IGN1 -
5 IGN2 -
6 Shift Lever in "P" Position (A/T)
Clutch Pedal Released (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 feedback -

Actuator List
No. Item Name Condition
1 Immobilizer indicator lamp (cluster) Ignition ON
Engine OFF
2 External Buzzer Ignition ON
Engine OFF
3 Interior antenna active Ignition ON
Engine OFF
6 Bumper/trunk antenna active Ignition ON
Engine OFF
7 DRV_DR Antenna Active Ignition ON
Engine OFF
8 AST_DR Antenna Active Ignition ON
Engine OFF
9 SSB illumination (OFF/ACC/ON) Ignition ON
Engine OFF
10 ACC/IGN1/IGN2 Relay Ignition ON
Engine OFF

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