Hyundai Sonata: Immobilizer System / Immobilizer Control Unit Repair procedures

Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the driver crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")
3.
Remove the knee airbag module.
(Refer to Restraint - "Knee Airbag (KAB) Module")
4.
Disconnect 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 crash pad lower panel and knee airbag module.
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 crash pad lower panel. (Refer to Body - "Crash Pad Lower Panel") 3. Disconnect the 6P connector (B) of the coil ante ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: Sunroof
If your vehicle is equipped with a sunroof, you can slide or tilt your sunroof with the sunroof control switch located on the overhead console. The sunroof can only be opened, closed, or tilted when the ignition switch is in the ON position. The sunroof can be operated for approximately 30 second ...

Hyundai Sonata LF 2014-2019 Service Manual: Temperature Control Actuator Description and Operation
Description The temperature control actuator is located at the heater unit. It regulates the temperature by the procedure as follows. The signal from the control unit adjusts the position of the temperature door by operating the temperature switch. Then the temperature will be regulated by ...

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