Kia Forte BD Quiz
Engine Electrical System

Generator

In this manual: Engine Electrical System
General Information — 8Maintenance — 32Engine Mechanical System — 47Engine Electrical System — 17Emission Control System — 10Engine Control System/Fuel System — 32Clutch System — 11Manual Transmission — 11DCT (Dual Clutch Transmission) System — 16Drive Shaft and Axle — 8Suspension System — 26Steering — 9Restraints — 11Brake System — 27Body (Interior and Exterior) — 119Body Electrical System — 98Heating, Ventilation, and Air Conditioning — 27
20steps
~125min
5/5difficulty
1special tools
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 20

Specifications

Specification

Item Specification
Rated Voltage 13.5 V, 130 A
Operating Speed 1000–18,000 rpm
Pin 3 (C, L, FR)
Pulley Type Alternator pulley
Voltage Regulator Built-in IC regulator type
Regulator set voltage (internal mode) 14.55 ± 0.3 V
Regulator set voltage (external mode) C terminal Frequency (Hz) 115-500
Voltage (V) High: 3.3–3.7
Low: 1.3–1.7
Signal Type PWM
FR terminal Frequency (Hz) 212 - 288
Current (mA) 2,7 - 7
Signal Type PWM

Components and Component Location

Components

1. OAD (Overrunning Alternator Decoupler)
2. Front Housing
3. Front Bearing
4. Stator
5. Rotor
6. Rear Bearing		 7. Rear Housing
8. Regulator Assembly
9. Through Bolt
10. Rectifier Assembly
11. Rear Cover

Description and Operation

Description

The AC generator has eight built-in diodes, each of which converts alternating current to direct current.

Therefore, direct current appears at the generator "B" terminal.

In addition, the charging voltage of this generator is controlled by the battery voltage sensing system.

The generator is regulated by the battery voltage sensing system.

The main components of the generator are the rotor, stator, rectifier, capacitor, brushes, bearings, and the drive pulley for the poly-V belt.

The brush holder contains a built-in electronic voltage regulator.

1. Brush
2. OAD (Overrunning Alternator Decoupler)
3. Rotor
4. Stator
5. Rectifier

Circuit Diagrams

Wiring Diagram

Repair Procedures

Removal and Installation

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

  2. Disconnect the air compressor connector (A) and the generator connector (B), and disconnect the cable from the generator "B" terminal (C).

    Generator "B" terminal mounting nut:

    9,8–11.8 N·m

  3. Remove the drive belt.

    (Refer to Engine Mechanical System - "Drive Belt")

  4. Remove the alternator (A).

  5. Install in the reverse order of removal.

Disassembly

  1. Remove the generator.

    (Refer to Charging System - "Generator")

  2. Remove the OAD (Overrunning Alternator Decoupler) cap (A).

  3. Remove the OAD pulley (overrunning alternator decoupler) (A) using the special service tool.

  4. Remove the rear cover (A) after removing the nuts.

  5. Remove the mounting bolts (A) and the regulator assembly (B).

  6. Remove the slip ring guide (A) by pulling it.

  7. Unsolder the 3 stator wires (A).

  8. Remove the 4 through bolts (A).

  9. Separate the rotor (A) and the bracket (B).

Installation

  1. Assemble in the reverse order of disassembly.

Inspection

[Rotor]

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

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

  3. If the rotor fails the continuity check, replace the generator.

[Stator]

  1. Check for continuity between each pair of wires (A).

  2. Make sure there is no continuity between each terminal and the coil core.

  3. If the coil fails the continuity check, replace the generator.

Test yourself

A quick Kia Forte BD quiz: every answer comes with an explanation and a link to the manual page.