Hyundai Elantra: Engine Control System / ETC (Electronic Throttle Control) System Repair procedures

Hyundai Elantra AD (2016-2020) Service Manual / Engine Control/Fuel System / Engine Control System / ETC (Electronic Throttle Control) System Repair procedures

Inspection

Throttle Position Sensor (TPS)

1.	Connect the GDS on the Data Link Connector (DLC).

Start the engine and measure the output voltage of TPS 1 and 2 at C.T. and W.O.T.

Throttle Angle	Output Voltage (V)
Throttle Angle	TPS 1	TPS 2
C.T	0.5	4.5
W.O.T	4.41	0.59

ETC Motor

1.	Turn the ignition switch OFF.

2.	Disconnect the ETC module connector.

3.	Measure resistance between the ETC module terminals 1 and 2.

Check that the resistance is within the specification.

Specification : Refer to "Specification"

Removal

1.	Turn the ignition switch OFF and disconnect the battery negative (-) cable.

2.	Remove the resonator and the air intake hose. (Refer to Engine Mechanical System - "Air Cleaner")

3.	Disconnect the ETC module connector (A).

4.	Disconnect the coolant hoses (A).

5.	Remove the installation bolts (B), and then remove the ETC module from the engine.

Installation

•	Install the component with the specified torques.

•	Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.

Installation is reverse of removal.

Electronic throttle body Installation bolt :

7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)

ETC (Electronic Throttle Control) System Schematic Diagrams

Circuit Diagram ...

Manifold Absolute Pressure Sensor (MAPS) Description and Operation

Description Manifold Absolute Pressure Sensor (MAPS) is a speed-density type sensor and is installed on the surge tank. It senses absolute pressure of the surge tank and transfers the analog si ...

Other information:

Hyundai Elantra AD (2016-2020) Owners Manual: Do Not Install a Child Restraint in the Front Passenger's Seat
Even though your vehicle is equipped with the OCS, never install a child restraint in the front passenger's seat. An inflating air bag can forcefully strike a child or child restraint resulting in serious or fatal injury. WARNING NEVER place a rear-facing or front-facing child restrai ...

Hyundai Elantra AD (2016-2020) Owners Manual: Smart key
To lock the doors, press the button on the outside door handle while carrying the Smart Key with you or press the Door Lock button on the Smart Key. Press the button on the driver's outside door handle while carrying the Smart Key with you or press the Door Unlock button on the Smart Ke ...