Opel Frontera UBS. Service manual — part 421

CHARGING SYSTEM 6D3 – 1

SECTION 6D3

CHARGING SYSTEM

CONTENTS

PAGE

General Description . . . . . . . . . . . . . . . . . . . . . . . . . .

6D3-1

Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6D3-4

Unit Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

6D3-5

GENERAL DESCRIPTION

The generator does not require particular
maintenance such as voltage adjustment. The
rectifier connected to the stator coil has nine diodes
to transform A.C. voltage into D.C. voltage. This
D.C. voltage is connected to the output terminal of
generator.

The charging system is the IC integral regulator
charging system and its main components are
connected as shown in Figure.
The regulator is a solid state type and it is mounted
along with the brush holder assembly inside the
generator installed on the rear end cover.

SECTION

6D3 – 2 CHARGING SYSTEM

CHARGING SYSTEM 6D3 – 3

6D3 – 4 CHARGING SYSTEM

DIAGNOSIS

GENERAL ON-VEHICLE INSPECTION

The operating condition of charging system is indicated
by the charge warning lamp. The warning lamp comes on
when the starter switch is turned to “ON” position. The
charging system operates normally if the lamp goes off
when the engine starts. If the warning lamp shows
abnormality or if undercharged or overcharged battery
condition is suspected, perform diagnosis by checking the
charging system as follows:

1. Check visually the belt and wiring connector.
2. With the engine in stop status, turn the starter switch

to “ON” position and observe the warning lamp.

•

If lamp does not come on:
Disconnect wiring connector from generator, an
ground the terminal “L” on connector side.

•

If lamp comes on:
Repair or replace the generator.