Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 1229

6D3–6

STARTING AND CHARGING SYSTEM (Y22SE 2.2L)

Continuity of Series Coil

Check for continuity between terminals S and M.
Replace, if there is no continuity (i.e., coil is
disconnected).

065RW017

Continuity of Contacts

With the plunger faced downward, push down the
magnetic switch. In this state, check for continuity
between terminals B and M. Replace, if there is no
continuity (i.e., contacts are faulty).

065RW018

Pinion

Check if the pinion rotates smoothly in drive direction by
hand, or if it is locked when it is rotated in reverse. If not,
replace the pinion.

065RS025

Characteristic Test

For easily confirming the characteristics, conduct the
noload test as follows:
Rating as short as 30 seconds requires rapid testing.
Fix the starter on the test bench, and wire as shown in
illustration. When the switch is closed, the current flows
and the starter runs under no load. At this time, measure
current, voltage and speed to check if they satisfy the
standard.

065R100010

Legend

(1) Volt Meter
(2) Revolution Indicator
(3) Battery
(4) Ammeter
(5) Switch

6D3–7

STARTING AND CHARGING SYSTEM (Y22SE 2.2L)

Charging System

General Description

The charging system is an IC integral regulator charging
system and its main components are connected as
shown in illustration.
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.

The generator does not require particular maintenance
such as voltage adjustment. The rectifier connected to
the stator coil has eight diodes to transform AC voltage
into DC voltage.
This DC voltage is connected to the output terminal of
generator.

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 stopped, turn the stator switch to

“ON” position and observe the warning lamp.
If lamp does not come on:
Disconnect wiring connector from generator, and
ground the terminal “L” on connector side.
If lamp comes on:
Repair or replace the generator.

066RW021

Legend

(1) Regulator

(2) Indicator Lamp
(3) Generator Assembly

6D3–8

STARTING AND CHARGING SYSTEM (Y22SE 2.2L)

Generator

Removal

1. Disconnect battery ground cable.
2. Move drive belt tensioner to loose side using wrench

then remove drive belt.

3. Disconnect terminal “B” wiring connector and

connector.

4. Remove generator bracket (1), (2) and remove

generator assembly.

065RW025

Inspection

Generator Power and Circuit Diagram

066RW020

Legend

(1) Load resistor, set parallel to battery
(2) Battery
(3) Voltmeter
(4) Ammeter
(5) Ignition Lock
(6) Charge Telltale
(7) Generator

1. Disconnect battery.
2. Close off connecting cable from alternator terminal

“B+”.

3. Set ammeter (measuring range 100A) in

disconnected line.

4. Connect controllable load resistor to battery terminal.
5. Set resistor in front of connection to “0”; connect first

to battery, then to resistor.

6. Connect tachometer.
7. Connect oscilloscope according to manufacturer’s

instructions.

8. Connect battery.
9. Start engine and read off resulting current at various

engine speeds.

6D3–9

STARTING AND CHARGING SYSTEM (Y22SE 2.2L)

Generator Power

1. Adjust load resistor, if the required load currents are

not attained.

2. The shape of the voltage curves on oscilloscope

curve should be regular.

3. Test value: 5 to 7A.
4. If the required minimum current intensity is not

attained, or if the oscilloscope picture shows
variations, the alternator should be overhauled.

066RW018

Regulated Voltage Circuit Diagram

066R100009

Legend

(1) Battery
(2) Ignition Lock
(3) Charge Telltale
(4) Resistor, for attainment of load current with the

battery set in series

(5) Voltmeter
(6) Generator

Installation

1. Install generator assembly and bring generator

assembly to the position to be installed.

2. Install generator bracket (1), (2) and tighten to the

specified torque.

Torque:
Long bolt: 35 N·m (26 lb ft)
Short bolt: 20 N·m (15 lb ft)

065RW025

3. Connect wiring harness connector.
4. Move drive belt tensioner to loose side using wrench,

then install drive belt to normal position.

5. Reconnect battery ground cable.