Hyundai Tucson: 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)
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) pulley2. Front housing3. Front bearing4. Stator5. Rotor 6. Rear bearing 7. Rear housing 8. Rectifier assembly 9. Regulator assembly 10. Rear c ...

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 alternat ...

Other information:

Hyundai Tucson (LM) 2010-2015 Owners Manual: Storage compartments
WARNING NEVER store cigarette lighters, propane cylinders, or other flammable/explosive materials in the vehicle. These items may catch fire or explode if the vehicle is exposed to hot temperatures for extended periods. WARNING ALWAYS keep the storage compartment covers closed securely while ...

Hyundai Tucson (LM) 2010-2015 Service Manual: Smart Key Diagnostic Repair procedures
Inspection Self Diagnosis With GDS Smart key system defects can be quickly diagnosed with the GDS. GDS operates actuator quickly to monitor, input/output value and self diagnosis. The following three features will be major problem in SMART KEY system. 1. Problem in SMART KEY unit input. ...

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