Hyundai Sonata: Immobilizer System / 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 antenna and then remove the coil antenna (A) after loosening the screw.

Installation
1.
Install the coil antenna and connect the 6P connector.
2.
Install the crash pad lower panel.
3.
Connect the negative (-) battery terminal.
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 ...

Ignition Switch Assembly
...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Description and Operation
Description The immobilizer system will disable the vehicle unless the proper ignition key is used, in addition to the currently available anti-theft systems such as car alarms, the immobilizer system aims to drastically reduce the rate of auto theft. 1. Transponder (TP) – IMMO ECU Comm ...

Hyundai Sonata LF 2014-2019 Owners Manual: Air Cleaner
Filter Replacement The air cleaner filter can be cleaned for inspection using compressed air. Do not attempt to wash or to rinse it, as water will damage the filter. If soiled, the air cleaner filter must be replaced. 1. Remove the air cleaner filter cover. 2. Wipe the inside of the air cleaner. ...

© 2018-2025 www.hsonatalf.org