Hyundai Elantra: Engine Electrical System

Muffler Repair procedures
Removal and Installation Front Muffler 1. Disconnect the battery negative terminal. 2. Disconnect the oxygen sensor connector (A). 3. Detach the rubber hanger (A) from the front muffler. ...

General Information
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Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Engine Control Module (ECM) Repair procedures
Removal     • When replacing the ECM, the vehicle equipped withthe immobilizer must be performed procedure asbelow. [In the case of installing used ECM] 1) Perform "ECM Neutral mode" procedure with GDS. (Refer to Body Electrical System - "Immobilizer System") 2) After ...

Hyundai Elantra AD (2016-2020) Owners Manual: Battery saver function, Headlamp delay function
Battery saver function The purpose of this feature is to help prevent the battery from being discharged. The system automatically turns off the parking lamp when the key is removed (remote key) or when the driver turns the engine off (smart key) and opens the driver-side door. With this feat ...

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