Serial Communication Status Check

Connect the cable of GDS to the data link connector in driver side crash pad lower panel.
Select the "Serial Communication Line Check".

Fig 1: Scantool Display - ID Register And Inspection / Test
Courtesy of HYUNDAI MOTOR AMERICA
After IG ON, select the "Receiver Communication Line Check".

Fig 2: Scantool Display - Receiver Communication Line Check
Courtesy of HYUNDAI MOTOR AMERICA
Check the serial communication line with a GDS.
If the smart key runs normal, the communication of smart key unit and exterior receiver are normal.
If the smart key runs abnormal, check the following items.
- Disconnection or no response of the exterior receiver communication line.
- The exterior receiver communication line disconnection and ground connection.