Hyundai Sonata: Alternator Schematic Diagrams - Charging System - Engine Electrical SystemHyundai Sonata: 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)
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. Disconnect the battery negative terminal. 2. Loosen the mounting bolts (A) and then, turn the adjusting bolt (B) clockwise to loosen tension. 3. Remove the drive belt (A). 4. ...

    See also:

    Interior overview
    1. Door lock/unlock button 2. Outside rearview mirror control switch 3. Central door lock switch 4. Power window lock switch 5. Power window switches 6. Hood release lever 7. Parking brake 8. ...

    Fuel Filter Repair procedures
    Replacement 1. Remove the fuel pump. (Refer to Fuel Delivery System - "Fuel Pump") 2. Remove the fixing clip (A), and then disconnect the fuel tube (B). 3. Remove the fuel pressure regul ...

    Mode Control Actuator Repair procedures
    Inspection 1. Turn the ignition switch OFF. 2. Disconnect the mode control actuator connector. 3. Verify that the mode control actuator operates to the defrost mode when connecting 12V to ...