Hyundai Santa Fe: Charging System / Description and operation

The charging system includes a battery, an alternator with a built-in regulator, and the charging indicator light and wire.

The Alternator has eight built-in diodes, each rectifying AC current to DC current.

Therefore, DC current appears at alternator "B" terminal.

In addition, the charging voltage of this alternator is regulated by the battery voltage detection system.

The main components of the alternator are the rotor, stator, rectifier, capacitor brushes, bearings and V-ribbed belt pulley. The brush holder contains a built-in electronic voltage regulator.

Alternator management system controls the charging voltage set point in order to improve fuel economy, manage alternator load under various operating conditions, keep the battery charged, and protect the battery from over-charging. ECM controls generating voltage by duty cycle (charging control, discharging control, normal control) based on the battery conditions and vehicle operating conditions.

The system conducts discharging control when accelerating a vehicle. Vehicle reduces an alternator load and consumes an electric power form a battery.

The system conducts charging control when decelerating a vehicle. Vehicle increases an alternator load and charges a battery.

Charging System

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Components and components location

Components 1. ECM 2. Battery 3. Alternator 4. Starter 5. Instrument Cluster 6. Ignition switch or start/stop button 7...

Other information:

Hyundai Santa Fe (TM) 2019-2025 Service Manual: SS-A Solenoid Valve (ON/OFF). Specifications

Specifications ▷ Control type : Normally low type Shape Items Specifications Control voltage [V] 9 - 16 Supply pressure [kpa (kgf/cm², psi)] 490...

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: Pre-tensioner seat belt

Your vehicle is equipped with driver’s and front passenger’s Pre-tensioner Seat Belts(Retractor Pretensioner and Emergency Fastening Device System). The purpose of the pre-tensioner is to make sure the seat belts fit tightly against the occupant’s body in certain frontal or side collision(s)...