Hyundai Elantra: Engine Control System / Injector Description and Operation
Based on information from various sensors, the ECM can
calculate the fuel amount to be injected. The fuel injector is a
solenoid-operated valve and the fuel injection amount is controlled by
length of injection time. The ECM controls each injector by grounding
the control circuit. When the ECM energizes the injector by grounding
the control circuit, the circuit voltage should be low (theoretically
0V) and the fuel is injected. When the ECM de-energizes the injector by
opening control circuit, the fuel injector is closed and circuit voltage
should momentarily peak.

Inspection
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Measure the output voltage of the FTPS.
Specification : Refer to "Specification"
Removal
1.
Turn the ignition swi ...
Specification
ItemSpecificationCoil Resistance (?)13.8 ~ 15.2 [20°C(68°F)]
...
Other information:
Hyundai Elantra AD (2016-2020) Service Manual: Specifications
Specification
ItemSpecificationUltrasonic sensorVoltage ratingDC 12VDetecting rangeF PAS : 100 / 60 /30cmR PAS : 120 / 60 /30cmOperation voltageDC 9 ~ 16VOperation currentMAX 350mAOperation temperature-30°C ~ +80°C (-22°C ~ +176°C)Operation frequency48 ± 5KHzNumber of sensors8EA
...
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 ...