Hyundai Elantra: Charging System / Alternator Schematic Diagrams

Hyundai Elantra AD (2016-2020) Service Manual / Engine Electrical System / Charging System / Alternator Schematic Diagrams

Circuit Diagram

•	COM signal - When controlling the voltage generated, the ECM sends the target voltage data to the alternator via a PWM signal.(High voltage: 4V or higher, low voltage: 2V or lower)

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FR signal - The transistor activation signal inside the alternator monitors the voltage generated by the alternator to control the excitation current before it sends the FR signal to the ECM. (At certain RPM/electric loads, the FR duty can remain static. However, more often, the RPM, electric load, target voltage, etc. are always changing in the vehicle, so the FR must also change constantly)

•	L signal - Turns on the battery warning lamp on the dashboard when the battery charging system malfunctions. (Conditions for turning on the lamp - overcharge, over discharge, a field coil blown inside the alternator)

•	B+ terminal - The output voltage from the generator travels to the battery via the B+ terminal.

Alternator Components and Components Location

Components 1. OAD (Overrunning Alternator Decoupler) 2. Front Bracket3. Front Bearing4. Stator5. Rotor6. Rear Bearing7. Rear Bracket8. Brush Holder Assembly9. Through Bolt10. Rectifier Assembly11 ...

Alternator Repair procedures

Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the drive belt. (Refer to Engine Mechanical System - "Drive Belt") 3. Disconnect the alter ...

Other information:

Hyundai Elantra AD (2016-2020) Owners Manual: Before Driving
Before Entering the Vehicle Be sure all windows, outside mirror( s), and outside lights are clean and unobstructed. Remove frost, snow, or ice. Visually check the tires for uneven wear and damage. Check under the vehicle for any sign of leaks. Be sure there are no obstacles behind you ...

Hyundai Elantra AD (2016-2020) Service Manual: Transaxle Oil Temperature Sensor Specifications
Specifications ? Type: Negative Thermal Coefficient Type Temp.[(°C)°F]Resistance (?)MinMax(-40) -40481534530151006(-20) -4.0156141478516443(0) 32.0588756056168(20) 68.02510.62401.92619.3(40) 104.01199.61152.41246.7(60) 140.0612.3590.3634.2(80) 176.0329.5318.7340.3(100) 212.0186180.4191.6(120 ...