Serial Communication Status Check

WARNING: This page is about a different car, the 2017 Hyundai Santa Fe Sport. However, it is still accessible from the selected car via links, so may be relevant.

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.