Hyundai Sonata LF: Button Engine Start System / Components and Components Location

Button Engine Start System

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Schematic Diagrams

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Other information:

Hyundai Sonata LF 2014-2019 Service Manual: 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...

Hyundai Sonata LF 2014-2019 Service Manual: Specifications

Specifications Smart Key Unit ItemsSpecificationRated voltageDC 12VOperating voltageDC 9 ~ 16VOperating temperature-22°F ~ 176°F (-30°C ~ 80°C)LoadMax. 4mA (When welcome light function off) RF Receiver ItemsSpecificationFrequency433.92 MhzAntenna typeFSK (Frequency Shift Keying) Smart Key Fob ItemsSpecificationBatteryLithium battery 3V 1EADistance30m from vehicle, RF : 30m, Passive(LF) : 0...