Hyundai Elantra: Immobilizer System / Immobilizer Control Unit Repair procedures

Hyundai Elantra AD (2016-2020) Service Manual / Body Electrical System / 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) Service Manual: Repair procedures
Inspection [EVAP. Leakage Test] 1. Select "Evap. Leakage Test". 2. Proceed with the test according to the screen introductions. [PCSV Inspection] 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Disconnect the PCSV connector (A). 3. Disconnec ...

Hyundai Elantra AD (2016-2020) Owners Manual: Limitations of the System
The LKA system may operate prematurely even if the vehicle does not depart from the intended lane, OR, the LKA system may not warn you if the vehicle leaves the intended lane under the following circumstances: When the lane and road conditions are poor It is difficult to distinguish the lan ...