Hyundai Santa Fe: Immobilizer Control Unit. Repair 
procedures - Immobilizer System - Body Electrical SystemHyundai Santa Fe: Immobilizer Control Unit. Repair procedures

Removal

1.
Disconnect the negative (-) battery terminal.
2.
Remove the driver crash pad lower panel.
3.
Remove the knee airbag module.
4.
Disconnect the connector of the immobilizer unit and then remove the immobilizer bolt (A) after loosening a nut.
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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 PCM(ECM) ...

Antenna Coil. Repair procedures
Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the crash pad lower panel. 3. Disconnect the 6P connector (B) of the coil antenna and then remove the coil antenna (A) after loosening ...

See also:

Changing the engine oil and filter
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Highway driving
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Loss of the smart key
A maximum of 2 smart keys can be registered to a single vehicle. If you happen to lose your smart key, you will not be able to start the engine. You should immediately take the vehicle and remaining key ...