Hyundai Elantra AD (2016-2020) Service Manual: Description and Operation
Description
The SMART KEY system is a system that allows the user to
access and operate a vehicle in a very convenient way. To access the
vehicle, no traditional key or remote control unit is needed.
The user carries a SMART KEY FOB which does not require any
conscious actions by the user ...
Hyundai Elantra AD (2016-2020) Service Manual: Engine Control Module (ECM) Repair procedures
Removal
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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 ...