Serial Communication Status Check

Connect the cable of scan tool to the data link connector in driver side crash pad lower panel.
Select the SERIAL COMMUNICATION STATUS CHECK".

Fig 1: Display - Serial Communication Status Check Screen
Courtesy of HYUNDAI MOTOR AMERICA
After IG ON, select the "External serial line".

Fig 2: Display - External Serial Line Screen
Courtesy of HYUNDAI MOTOR AMERICA
Check the serial communication line with a scanner.
If the smart key runs normal, the communication of smart key unit, exterior receiver and ESCL (Electronic Steering column Lock) are normal.
If the smart key runs abnormal, check the following items.
1. Disconnection or no response of the exterior receiver communication line.
2. The exterior receiver communication line disconnection and ground connection.
3. The ESCL disconnection or no response
4. The ESCL disconnection and ground connection