Hyundai Accent (HC): Charging System / Alternator

Hyundai Accent (HC) (2017 - 2022) Service Manual / Engine Electrical System / Charging System / Alternator

- Specification

ItemSpecification
Rated voltage13.5V, 130A
Speed in use 1,000 - 18,000 rpm
Voltage regulatorIC Regulator built-in type
Regulator Setting VoltageExternal mode 10.6 - 16 ± 0.3V
Internal mode14.5 ± 0.3V
Temperature GradientExternal mode0 ± 2 mV / °C　
Internal mode-3.5 ± 2 mV / °C

- Description 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 alternator is regulated by the battery voltage detection system. The main components of the alternator are the rotor, stator, capacitor brushes, bearings and V-ribbed belt pulley. The brush holder contains a built-in electronic voltage regulator.

1. Brush
2. Pulley
3. Rotor
4. Stator


- Circuit Diagram

   

• COM signal - When controlling the voltage generated, the ECM sends the target voltage data to the alternator via a LIN signal.

• B+ terminal - The output voltage from the generator travels to the battery via the B+ terminal.

- Removal and Installation

1.Turn ignition switch OFF and disconnect the battery negative (-) terminal.

2.Remove the drive belt.(Refer to Engine Mechanical System - "Drive Belt")

3.Disconnect the air compressor connector (A) and the alternator connector (B), and remove the cable (C) from alternator "B" terminal.

Alternator B-terminal cable mounting nut :18.6 - 24.5 N.m (1.9 - 2.5 kgf.m, 4.1 - 5.5 Ib-ft)

4.Loosen the mounting bolts (A).

Alternator lower bolt :29.4 - 41.2 N.m (3.0 - 4.2 kgf.m, 21.7 - 30.4 Ib-ft)

5.Remove the alternator (A).

6.Install in the reverse order of removal.

- Disassembly

1.Remove the rear cover (A).

2.Remove the mounting bolts (A) and the regulator assembly.

   

• When installing, replace with new OAP cap.

3.Remove the OAP cap.

   

• When installing, replace with new OAP cap.

4.Remove the OAP pulley (A) using the special tool (09373-27000).

5.Remove the rectifier assembly (A) after disconnecting the stator leads.

6.Remove the 4 through bolts (A).

7.Disconnect the rotor (A) and bracket (B).

8.Install in the reverse order of removal.

- Reassembly

1.Reassemble in the reverse order of disassembly.

   

• When reassembling OAP pulley, replace with new OAP cap.

- Inspection [Rotor]

1.Check that there is continuity between the slip rings (C).

2.Check that there is no continuity between the slip rings and the rotor (B) or rotor shaft (A).

3.If the rotor fails either continuity check, replace the alternator.

[Stator]

1.Check that there is continuity between each pair of leads (A).

2.Check that there is no continuity between each lead and the coil core.

3.If the coil fails either continuity check, replace the alternator.

Troubleshooting

Battery

Other information:

Hyundai Accent (HC) (2017 - 2022) Service Manual: Troubleshooting

- Troubleshooting SymptomPassible CauseRemedy (Refer to page) Water leaks from panorama sunroofDeteriorated roof lid weatherstripReplace Excessive roof lid - to - body clearance and improperly fitted weatherstripAdjust Wind noise around sunroof Loose or deformed deflector, gaps in body workRetighten adjust or replace Noise created by moving sunroof lidForeign particles lodged in guide railCheck drive cable and guide rails for foreign particles Loose guide rails and lidRetighten Motor runs but sunroof does not move or moves only partiallyForeign particles lodged in guide railAdjust or replace Incorrect engagement of motor pinion with drive cable Decrease in motor's clutch slipping force Increased sunroof sliding resistance or interference of sunroof with drive cables, weatherstrip, etc.

Hyundai Accent (HC) (2017 - 2022) Service Manual: Schematic Diagrams

- Schematic Diagrams - Termianal function Wire NoDesignationCurrent maxmin 13Ground for recirculation pump39A10A 1Voltage supply for pump motor39A10A 25Voltage supply for solenoid valves15A2A 38Ground for solenoid valves and ECU15A2A 22Signal wheel speed sensor FL16.8 mA5.9 mA 33Voltage supply for the active wheel speed sensor RL16.

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