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: Hood
1. Park the vehicle and set the parking brake. 2. Pull the release lever to unlatch the hood. The hood should pop open slightly. 3. Go to the front of the vehicle, raise the hood slightly, push up the secondary latch (1) inside of the hood center and lift the hood (2). 4. Pull out the sup ...

Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Components NoConnector AConnector  BConnector  CConnector  D1Batt (+)IGNRain sensor (LIN)Airbag unit (LIN)2IGN 1Front wiper switch (High)-RPAS (LIN)3IGN 2Light switch-Puddle lamp4Brake switchHead lamp switch (High)-ATM solenoid5Front wiper switch (Low)Auto light power-Power windo ...

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