Hyundai Elantra (CN7): Body Electrical System / Immobilizer System

Components and components location Component Repair procedures Removal1.Disconnect the negative(-) battery terminal.2.Remove the AVN Head unit.

DescriptionThe 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.

Other information:

Hyundai Elantra (CN7) 2021-2026 Service Manual: Description and operation

DescriptionSystem OverviewThe System offers the following features:– Human / machine interface through a 1-stage button, for terminal switching and engine start.– Control of external relays for ACC / IGN1 / IGN2 terminal switching and STARTER, without use of mechanical ignition switch.

Hyundai Elantra (CN7) 2021-2026 Service Manual: Repair procedures

Variant Coding    When you need variant coding:– Replace Front View Camera with a new one※ EOL Variant Coding and calibration required for new replacementFront View Camera Variant CodingFront view camera variant coding makes it possible to operate functions for each vehicle type.

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