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) Owners Manual: System Malfunction
Check Forward Collision Avoidance Assist system When FCA is not working properly, the FCA warning light () will illuminate and the warning message will appear for a few seconds. After the message disappears, the master warning light () will illuminate. In this case, have the vehicle i ...

Hyundai Elantra AD (2016-2020) Service Manual: Instrument Cluster Repair procedures
Removal     • Put on gloves to protect your hands. • When prying with a flat-tip screwdriver, wrap it with protective tape, and apply protective tape around the related parts, to prevent damage. 1. Disconnect the negative (-) battery terminal. 2. Remo ...

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