SpecificationsHyundai Elantra AD (2016-2020) Service Manual: Knock Sensor (KS) Repair procedures
Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Disconnect the knock sensor connector (A).
3.
Remove the intake manifold.
(Refer to Engine Mechanical System - "Intake Manifold")
4.
Remove the installation bolt (A), and then remove the sens ...
Hyundai Elantra AD (2016-2020) Service Manual: ESC OFF Switch Description and Operation
Description
1.
The ESC OFF switch is for the user to turn off the ESP system.
2.
The ESC OFF lamp is on when ESP OFF switch is engaged. ...