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: Driving in the rain
Rain and wet roads can make driving dangerous. Here are a few things to consider when driving in the rain or on slick pavement: Slow down and allow extra following distance. A heavy rainfall makes it harder to see and increases the distance needed to stop your vehicle. Turn OFF your C ...

Hyundai Tucson (LM) 2010-2015 Service Manual: Radiator Repair procedures
Inspection Radiator Cap Testing 1. Remove the radiator cap, wet its seal with engine coolant, and then install it on a pressure tester. 2. Apply a pressure of 93.16~122.58 kPa (0.95~1.25 kgf/cmx, 13.51~17.78 psi). 3. Check for a drop in pressure. 4. If the pressure drops, replace ...

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