169

III. ALTERNATOR INSPECTION

1. INSPECT ALTERNATOR

Structure of Alternator

(a) Inspect the rotor winding

1

Inspect the resistance of the rotor winding

Place the multimeter at R x 1, connect 2 pens and 2 slip

rings of the rotor.

Standard resistance: 2.7---3.1

¸

2

Inspect the rotor bending

Standard: less than 0.5 mm of radial motion

If it is not normal, calibrate or replace the rotor.

Pulley

Bearing Cover

Ｓｔａｔｏｒ

Bearing 

Rotor

Wire Clamp

Brush

Gasket Rectifier Frame

Connecting Insulator

Brush 
Holder

Brush
Holder
Cover

Rear Cover

Bearing Retainer

Bearing 

IC Regulator

Rotor Winding Inspection 

Ω

170

(b) Inspect the stator winding

1

Inspect the resistance of the stator winding

Place the multimeter at R x 1, connect 2 pens of the

meter to any of the 2 pens wires of the armature winding

respectively. There must be continuity. Where the

resistance reading is infinitely great shows an open circuit.

2

Inspect the winding ground

Place the multimeter at R x 1, connect one pole of the

meter to the pole wires of the armature winding

respectively and the other pole of the meter to the stator

core. If the resistance reading is infinitely great, the

armature winding is well-insulated. If not, it needs repairing

and replacing.

IV. ALTERNATOR ASSEMBLY REPLACEMENT (MR479Q, MR479QA, MR481QA)

(a) Disconnect the alternator connector.

(b) Loosen the Bolt A, B, C

(c) Loosen the V-belt. Then remove the alternator.

2. INSTALL ALTERNATOR ASSEMBLY

Torque:

M10 bolt 15N.m (154kgf.cm, 9ft.lbf)

Tension adjustment for V-belt:

When the center of the belt receives a 50N of downward pressure, there is a 10 mm of deflection.

Alternato

r

Inspection of Armature Winding Ground 

171

Chapter 3 Combination Meter System

Section 1 Circuit Diagram of Combination Meter and Location of

Multi-pin Plug-in Terminal

I. CIRCUIT DIAGRAM OF CONBINATION METER

Speed Signal

Ground The Sensor

Revolution Signal

Water Temperature Signa

Fuel Level Gauge

Tachometer

Speedometer

Water 
Temperature Gauge

Feul Level Gauge

Odometer

High Beam Lamp

Rear Defrost Lamp

Rear Defog Lamp

Backlight

Water Temperature Warning

Power Steering

Fuel Warning

Charge

Brake Fluid

Oil Pressure

Engine Malfunction

Driver's seat belt

Park Brake

SRS(main)

SRS(sub)

172

II. LOCATION OF HARHESS MULTI-PIN PLUG-IN TERMINAL

(1) HINT:

R  --  RE                     Bl  --  BLUE                         Y  --  YELLOW

B  --  BLACK

P  -- 

 PIN                         G  --  GREEN

W  --  WHITE

O --   ORANGE

Gr --  GRAY

Br --  BROWN

V   --  

VIOLETL                  g  --   LIGHT GREEN

The first letter represents the base color

The second letter represents the color of the stripe

e.g. VG (violet & green) V-violet, G-green

Color of connector A is white, and B is black

V

G