Hyundai Tucson: Charging System / Alternator

- 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, rectifier, capacitor brushes, bearings and V-ribbed belt pulley. The brush holder contains a built-in electronic voltage regulator.

1. Brush
2. Drive belt pully
3. Rotor
4. Stator

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

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

3.Disconnect the injector extension connector (A) and variable intake solenoid (VIS) valve connector (B).

4.Disconnect the extension connector (A) and oil pressure control solenoid valve connector (B).

5.Disconnect the A/C compressor connector.

6. Disconnect the alternator connector (A).

7. Remove the cable nut (A) from the alternator "B" terminal.

Tightening torque :18.6 - 24.5 N.m (1.9 - 2.5 kgf.m, 13.7 - 18.1 Ib-ft)

8. Remove the injector extension wiring bracket mounting bolt (A).

Tightening torque :9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 Ib-ft)

9.Remove the wiring (A).

10.Remove the alternator mounting bolts.

Tightening torque :49.0 - 63.7 N.m (5.0 - 6.5 kgf.m, 36.2 - 47.0 Ib-ft)

11.Remove the alternator (A).

1.Install in the reverse order of removal.

1.Remove the shaft cap (A).

• When installing, replace with new shaft cap.

2.Remove the alternator pulley (A).

3.Remove the alternator cover (A) after loosening the mounting nut.

4.Remove the regulator assembly (A).

5.Unsolder the stator leads (A).

6.Remove the rectifier assembly (A).

7.Remove the 4 through bolts (A).

8.Separate the rotor (A) and cover (B).

1.Reassemble in the reverse order of disassembly.

• When installing, replace with new shaft cap.

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.

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.