Snowmobile Yamaha Phazer PZ50W, PZ50GTW, PZ50FXW, PZ50MW, PZ50VTW, PZ50MPW. Instruction - part 85

 

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Snowmobile Yamaha Phazer PZ50W, PZ50GTW, PZ50FXW, PZ50MW, PZ50VTW, PZ50MPW. Instruction - part 85

 

 

8-52

+

ELEC

COOLING SYSTEM (PZ50M/PZ50VT/PZ50MP)

TROUBLESHOOTING

Check the main fuse, ignition fuse, and radiator fan 
motor fuse.
Refer to “FUSE INSPECTION” in CHAPTER 2.

Check the battery.
Refer to “BATTERY INSPECTION” in CHAPTER 2.

Check the stator coil.
Refer to “CHARGING SYSTEM”.

Check the main switch.
Refer to “IGNITION SYSTEM”.

Check the radiator fan motor.

Check the radiator fan motor relay.

Check the coolant temperature sensor.
Refer to “SIGNAL SYSTEM”.

Check the load control relay.
Refer to “LIGHTING SYSTEM”.

Correct the connection and/or replace the rectifier/
regulator and/or the ECU.

THE RADIATOR FAN MOTOR DOES NOT MOVE

OK

FAULTY

Replace the main fuse, ignition fuse, and/or radia-
tor fan motor fuse.

OK

OUT OF SPECIFICATION

Replace and/or charge the battery.
Refer to “BATTERY INSPECTION” in CHAPTER 
2.

OK

OUT OF SPECIFICATION

Replace the stator coil assembly.

OK

NO CONTINUITY

Replace the main switch.

OK

FAULTY

Replace the radiator fan motor.

OK

FAULTY

Replace the radiator fan motor relay.

OK

FAULTY

Replace the coolant temperature sensor.

OK

FAULTY

Replace the load control relay.

8-53

+

ELEC

COOLING SYSTEM (PZ50M/PZ50VT/PZ50MP)

RADIATOR FAN MOTOR

1. Disconnect:

• Radiator fan motor coupler 

2. Connect:

• Battery

3. Inspect:

• Radiator fan motor

Does not move 

→ Replace the radiator fan

motor.

Positive battery terminal 

 Blue 1 

Negative battery terminal 

 Black 2 

RADIATOR FAN MOTOR RELAY

1. Remove:

• Radiator fan motor relay

Inspection steps:

• Connect the pocket tester (

Ω × 1) and battery

(12 V) to the radiator fan motor relay terminals
as shown.

• If radiator fan motor relay does not have conti-

nuity between the brown/red and blue terminals,
replace it.

Positive battery terminal 

 Red/White 1 

Negative battery terminal 

 Green/Yellow 2 

Positive tester probe 

 Brown/Red 3 

Negative tester probe 

 Blue 4 

8-54

+

ELEC

DRIVE/REVERSE SELECTING SYSTEM

(PZ50GT/PZ50FX/PZ50M/PZ50VT/PZ50MP)

DR

IVE/REVERSE SELEC

T

ING SYSTEM (PZ50GT/PZ50FX/PZ50M

/PZ50VT/PZ50MP)

CIRC

UIT D

IAGRA

M

B

R

/L

(20A)

R

/W

R

/W

R

/W

O

R

/W

(BLACK)

O

O

O

B

L/

W

B

G

Lg

Y

(BLACK)

OFF

ON

START

W

W

W

W

W

W

B

/L

Gy

L

/W

Lg

G

L

L

/W

R

/W

R

/G

L/

W

(10A)

HI

LO

G

B

Y

G

B

Y

OFF

ON

R

B

R

R

W

W

Lg

Y

B

B

B

B

B

Y

G

Y

G

R

/G

R

R

R

R

B

B

B

CLOSE

OPEN

B

/Y

Ch

RUN

STOP

Br

/L

W

Br

R

B

Y

/R

B

/R

B

/R

Y

/L

Y

/L

Y

/W

Y

/W

Ch

B

/L

Y

/W

Y

/L

Ch

B

R

/Y

Ch

R

/B

B

Gy

(BLACK)

B

/L

Gy

Br

B

/W

R

Br

/L

W

Br

(GLAY)

WW

W

R

Br

Br

R

/W

L/

W

R

/Y

B

Br

/W

L

/W

R

R

B

B

R

R

L

/Y

B

/R

R

/W

L/

W

Br

/W

Br

Br

R

/W

B

/Y

B

/Y

Ch

B

/L

(BLACK)

(BLACK)

(BLACK)

(BLACK)

L

/YR

/B

Y

Ch

B

/R

R

/WG

/B

G

L/

R

B

LY

B

W

/Y

L

B

/L

P

O

/R

B

/W

W

/B

L

B

/L

(BLACK)

WL

B

(BLACK)

R

/LR

/B

R

/LG

/B

G

/WB

/L

R

/L

L

/R

R

/G

R

/W

L

/R

R

/L

R

/W

R

/G

Y

/G

Y

/G

B

G

G

Ch

Ch

G

/B

G

/B

R

/B

Ch

(GLAY)

(GLAY)

R

/Y

L

/R

L

/W

Br

B

R

R

R

B

B

(BLACK)

L

/W

R

/W

R

/W

L

/W

B

Lg

Y

/R

O

/B

L

/Y

G

/Y

B

/Y

L

/W

R

/W

R

/W

Y

/L

Br

/B

Y

/L

Y

/W

Sb

/W

G

/W

Br

/W

B

/L

G

/B

W

/B

W

/Y

P

/W

L

/R

R

/L

R

/B

Gy

/R

Gy

Br

/L

Y

/G

Lg

Lg

Y

L

W

P

B

O

B

Ch

R

/L

R

/L

G

/B

G

/B

G

/B

R

/B

B

R

/L

B

B

B

(BLACK)

B

/L

W

/B

L

B

/L

W

/Y

L

Y

B

/L

L

P

/W

B

/L

L

A

R

/L

R

/L

B

/L

G

/W

Br

/W

B

/L

L

P

/W

B

/L

L

/R

L

/R

R

/W

G

Lg

L

/W

Y

Y

W

G

/W

Gy

B

/YW

/YY

/W

W

/L

W

/RO

/B

Br

/B

B

/R

P

/WR

/L

Y

/G

Ch

B

/L

L

/Y

Lg

R

/W

Br

/W

L

/WP

Y

/L

L

W

/BR

/W

O

Y

/R

Y

/LG

/Y

Br

/L

L

/R

B

R

/B

Lg

B

G

/B

Gy

/R

Sb

/W

Br

/W

B

/L

(40A)

(20A)

(15A)

(3A)

(4A)

(7.5A)

R

/W

Gy

/R

R

/W

(BLACK)

A

Gy

/R

A

A

R

/B

R

/B

A

(BLACK)

(DARK GREEN)

L

P

B

/L

L

P

B

/L

Gy

/R

Gy

/R

C

B

/L

B

/L

C

G

/W

G

/W

W

B

C

Ch

Ch

Ch

A

(BLACK)

(BLACK)

W

Lg

Lg

(BLACK)

(GRAY)

Y

B

/L

L

(BLACK)

(GRAY)

R

/L

R

/L

B

(BLACK)

R

B

(BLACK)

(GRAY)

(BLACK)

(BLACK)

B

R

/L

(BLACK)

E

W

/R

W

/R

E

W

/L

W

/L

W

/R

W

/L

B

/R

W

/R

W

/L

B

Y

/R

B

Y

/R

Br

/R

G

/Y

L

R

/W

Br

/R

Br

/R

L

L

L

R

/W

G

/Y

B

L

B

L

(BLACK)

W

W

O

/B

O

/B

B

R

/G

W

/B

G

B

O

/B

L/

R

G

B

/R

B

Y

/R

B

Y

/R

B

G

L/

R

G

B

Ch

G

/B

Lg

B

W

B

B

B

B

B

B

B

Y

/R

B

/R

B

B

O

/B

L

/R

LO

OFF

HI

G

/R

O

/B

Y

/L

(BLACK)

G

/R

O

/B

Y

/L

(BLACK)

G

B

Y

G

/R

B

Y

/L

G

B

Y

G

/R

B

Y

/L

D

B

B

O

/B

Y

/L

G

/R

Y

/L

Y

/L

G

/R

G

/R

B

B

Y

/L

O

/B

L/

R

L/

R

Y

/L

O

/B

L

/R

L

/R

D

O

/B

O

/B

Br

/B

Y

/R

R

/G

Br

/R

R

/G

(BLACK)

Sb

/W

R

/G

R

/G

B

Sb

(BLACK)

Sb

/W

L/

B

Y

/R

B

Br

/R

Sb

L/

B

E

Sb

Sb

Sb

R

/G

R

/G

R

/G

Y/

R

B

B

R

/G

Y/

R

Br

/B

Br

/R

Sb

Sb

/W

Sb

/W

L/

B

L/

B

Br

/R

E

L/

B

L/

B

E

Br

/R

Br

/R

D

L

/R

L

/R

D

G

G

F

G

G

F

F

Y

Y

L/

R

O

/B

Br

P

(BLACK)

|

M

L

K

Z

BC

E

E

7

6

0

9

g

j

u

t

s

s

2

4

3

i

y

z

{

~}

5

A

k

F

G

Y

X

T

S

V

U

R

O

P

Q

8

J

N

h

W

b

a

d

L

m

n

o

p

q

r

l

1

D

HI

EE

w

v

x

e

f

f

c

[

\]

^

Ë

É

Ê

Í

Ì

È

E

WIRE HARNESS

GEAR MOTOR

SUB-WIRE

HARNESS

F

WIRE HARNESS

HEADLIGHT

SUB-WIRE

HARNESS

YG

B

Y

G

B

D

WIRE HARNESS

SUB-WIRE

HARNESS 3

B

O

/B

GL

/R

BO

/B

G

L

/R

B

WIRE HARNESS

FUEL PUMP

SUB-WIRE

HARNESS

R

/L

B

C

WIRE HARNESS

SUB-WIRE

HARNESS 2

B

/L

G

/W

Ch

B

/L

G

/W

Ch

A

WIRE HARNESS

SUB-WIRE

HARNESS 1

R

/W

O

R

/B

Gy

/R

G

/BR

/L

R

/W

O

R

/B

Gy

/R

G

/B

R

/L

ÈÈ

W

/R

Br

/R

L/

B

Sb

W

/L

W

/R

Br

/R

L/

B

Sb

W

/L

8-55

+

ELEC

DRIVE/REVERSE SELECTING SYSTEM

(PZ50GT/PZ50FX/PZ50M/PZ50VT/PZ50MP)

DRIVE/REVERSE 
SELECTING SYSTEM 
(PZ50GT/PZ50FX/
PZ50M/PZ50VT/
PZ50MP)

CIRCUIT DIAGRAM

2 A.C. magneto
3 Rectifier/regulator
4 Main switch
5 Main fuse
6 Load control relay
0 Battery
H Drive position switch
I Reverse position switch
J ECU (engine control unit)
[ Gear motor relay 1
\ Gear motor relay 2
] Gear motor relay 3
` Gear motor
y Ignition fuse
~ Gear motor fuse

 

 

 

 

 

 

 

Content   ..  83  84  85  86   ..