Hyundai Elantra: Transmitter. Repair procedures - Keyless Entry And Burglar Alarm - Body Electrical System - Hyundai Elantra HD 2006–2010 Service ManualHyundai Elantra: Transmitter. Repair procedures


Check that the red light flickers when the door lock or unlock button is pressed on the transmitter.
Remove the battery and check voltage if the red light doesn't flicker.

Standard voltage : 3V

Replace the transmitter battery with a new one, if voltage is below 3V then try to lock and unlock the doors with the transmitter by pressing the lock or unlock button five or six times.
If the doors lock and unlock, the transmitter is O.K, but if the doors don't lock and unlock, register the transmitter code, then try to lock and unlock the doors.
If the transmitter is fails, replace only the transmitter (A).

Transmitter Code Registration

Connect the DLC cable of scan tool to the data link connector (16 pins) in driver side crash pad lower panel, turn the power on scan tool.

Select the vehicle model and then do "CODE SAVING".

After selecting "CODE SAVING" menu, push "ENTER" key, then the screen will be shown as below.

After removing the ignition key from key cylinder, push "ENTER" key to proceed to the next mode for code saving. Follow steps 1 to 4 and then code saving is completed.

* In registration mode, it shall be possible to register up to Max 4EA.

    Transmitter. Specifications
    Specification Items Specifications Keyless entry transmitter Power source Lithium 3V battery (1EA) Transmissible distance ...

    Troubleshooting 1. Alarm does not work. (Hazard lamps work) 2. When hood is opened in ARM mode, burglar horn does not work. ...