Hyundai Elantra: Smart Key System / Smart Key Unit Schematic Diagrams

Circuit Diagram

Smart Key Unit Components and Components Location
Components (1) NoConnector AConnector BConnector C1BAT (+)_SignalDriver's door antenna_GND-2BAT (+)_PowerDriver's door antenna_Power-3IGN 1--4IGN 2_Relay outputB-CAN (High)SSB LED (OFF)5IGN 1_Rel ...

Smart Key Unit Repair procedures
Removal Smart Key Unit 1. Disconnect the negative (-) battery terminal. 2. Remove the glove box. (Refer to Body - "Glove Box Upper Cover Assembly") 3. Remove the smart key unit (A) after ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Specifications
Specifications ItemsSpecificationHoodTypeFront openine type, rear hinged, stay rod typeFront DoorConstructionFront hinged, frame door constructionRegulator systemWire drum typeLocking systemPin-fork systemRear DoorConstructionFront hinged, frame door constructionRegulator systemWire drum typeLo ...

Hyundai Elantra AD (2016-2020) Service Manual: AVN Remote Controller Repair procedures
Inspection 1. Check for resistance between terminals in each switch position (LH). [LH : Audio + Hands free] SwitchConnector terminalResistance(±5%)SEEK Up2-5430 ?SEEK Down1.11 k?MODE2.11 k?MUTE3.11 k?Volume (+)4.61 k?Volume (-)6.81 k?Voice10.71 k?SEND18.91 k?END40.91 k? 2. Check for re ...

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