Hyundai Elantra: Immobilizer System / Immobilizer Control Unit Repair procedures

Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the main crash pad assembly.
(Refer to Body - "Main Crash Pad Assembly")
3.
Discnnect the connector of the immobilizer unit and then remove the immobilizer unit (A) after loosening a nut.

Installation
1.
Install the immobilizer control unit after connecting the unit connector.
2.
Install the main crash pad assembly.
3.
Connect the negative (-) battery terminal.
Repair procedures
Teaching Procedures 1. Key Teaching Procedure Key teaching must be done after replacing a defective PCM(ECM) or when providing additional keys to the vehicle owner. The procedure starts with a ...

Antenna Coil Repair procedures
Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the steering column shroud panel. (Refer to Body - "Steering Column Shroud Panel") 3. Disconnect the 6P connector (B) of ...

Other information:

Hyundai Elantra AD (2016-2020) Owners Manual: Automatic Climate Control System
To defog inside windshield 1. Select desired fan speed. 2. Select desired temperature. 3. Press the defroster button (). 4. The outside (fresh) air position will be selected automatically. If the outside (fresh) air position is not selected automatically, adjust the corresponding button man ...

Hyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Replacement     • Put on gloves to prevent hand injuries.     • When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components. • Use a plastic panel removal tool to remove int ...

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