Hyundai Tucson: Charging System / Alternator Schematic Diagrams

Hyundai Tucson (LM) 2010-2015 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) 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: Air bag collision sensors
WARNING To reduce the risk of an air bag deploying unexpectedly and causing serious injury or death: Do not hit or allow any objects to impact the locations where air bags or sensors are installed. Do not perform maintenance on or around the air bag sensors. If the location or angle o ...

Hyundai Tucson (LM) 2010-2015 Service Manual: Inhibitor Switch Repair procedures
Inspection • Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Inspection flow Items to check 1. Inspect DTC code. 2. Inspect whether N setting matches. A. Adjust N setting (refer to ...