Snowmobile Yamaha FX10X, FX10RTX, FX10RTRX, FX10RTRAX, FX10MTX, FX10MTRX, FX10MTRAX. Instruction - part 87

 

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Snowmobile Yamaha FX10X, FX10RTX, FX10RTRX, FX10RTRAX, FX10MTX, FX10MTRX, FX10MTRAX. Instruction - part 87

 

 

8-42

+

ELEC

GRIP WARMER SYSTEM

GR

IP W

ARMER SYSTEM

CIRC

UIT D

IAGRA

M

R

/W

L/

W

(BLACK)

L/

W

R

/G

R

/W

L/

W

Y

Lg

G

(BLACK)

B

Br

/B

L

R

/WG

/Y

R

/G

R

/L

R

/WL

/R

R

W

Br

Br/L

Y

/R

P

/L

W

/G

R

/G

Br

/L

L

/B

O

Lg

B

G

/Y

L

/R

B

G

/B

R

/Y

Br

/L

R

/B

Gy

/R

O

/G

L

Br

/W

P

G

/W

L

/WR

/W

Gy

P

/W

R

/LC

h

Y

/L

W

L

/Y

B

/L

Y

/W

Y

/GB

/Y

Y

Lg

R

/W

L

/W

Y

/G

Lg

R

/W

L

/W

R

/W

L

/W

R

/G

Ch

Y

G

B

G

/Y

Br

/L

B

/Y

L

/Y

Lg

Y

/R

R

/Y

Gy

O

Gy

/R

O

/G

R

/B

G

/B

L

/B

B

B

L

/R

R

/L

L

Y

W

P

/W

P

G

/W

Br

/W

B

/L

R

/G

P

/L

W

/G

Br

/L

Y

/W

Y

/L

R

/BR

/L

G

/BR

/L

L

/BR

/L

B

B

HI

LO

G

B

Y

Y

G

B

G

B

Y

B

L

B

L

(BLACK)

(BLACK)

B

L/

W

Br

R

/Y

R

/W

Br

/W

Br

R

OFF

ON

START

RUN

STOP

OFF

ON

CLOSE

OPEN

Y

/L

Y

/W

Ch

Y

/WY

/L

B

/L

P

O

/R

B

/W

LW

B

/L

G

L

/R

B

LY

B

L

/W

Lg

G

L

W

/B

G

B

O

/B

L/

BG

/BR

/BR

/L

P

/W

R

/G

Y

B

/L

L

P

R

/YW

/G

Br

/L

(GRAY)

P

/L

L/

B

G

/B

R

/B

R

/L

P

/W

R

/G

Y

B

/L

L

P

/BR

/Y

W

/G

Br

/L

(GRAY)

P

/L

Y

/G

Y

/G

B

/L

Ch

(BLACK)

(BLACK)

B

/Y

B

/Y

G

L/

R

B

L/

R

G

B

L

/Y

Ch

Y

R

/B

R

/W

G

/B

R

/W

G

/B

Y

R

/B

L

/Y

Ch

G

/W

B

/L

B

/L

G

/W

Br

/W

(BLACK)

Br

Br

(BLACK)

R

/W

B

/L

(BLACK)

Gy

Gy

(BLACK)

B

R

/W

(BLACK)

O

R

/W

(BLACK)

Gy

/R

R

/W

(BLACK)

O

/G

R

/LR

/B

(GRA

Y)

R

/LG

/B

(GRA

Y)

R

/LL

/B

(GRA

Y)

B

/L

Y

L

(BLACK)

B

R

/L

R

/G

P

/L

R

/Y

(BLACK)

Br

/L

W

/G

R

/Y

G

/W

B

/L

(DARK GREEN)

Y

/G

B

W

Lg

B

L/R

G

G

L/R

B

(GREEN)

G

G

/B

Ch

Br

P

P

L/R

B

Y/R

B

B

B

Y/R

B

B

(GREEN)

(GRA

Y)

Ch

R

/B

Br

/W

B

/L

(BLACK)

L

(BLACK)

P

/W

B

/L

L

(BLACK)

P

/BB

/L

W

(GRAY)

WW

R

(BLACK)

B

R

R

R

/WG

/BL

/YR

/B

(BLACK)

Ch

Y

WIRE HARNESS

FUEL INJECTION SYSTEM

SUB-WIRE HARNESS

A

WIRE

HARNESS

OIL PRESSURE

SWITCH

SUB-LEAD

B

WIRE

HARNESS

WIRE

HARNESS

TAIL/BRAKE

 LIGHT 

SUB-LEAD

SPEEDOMETER

UNIT SUB-LEAD

C

E

WIRE

HARNESS

REVERSE SWITCH

SUB-WIRE HARNESS

F

WIRE

HARNESS

COOLANT

TEMPERATURE

SENSOR SUB-LEAD

G

L/

R

B

B

L/

R

È

É

ÈÉ

R

Gy

B

B

/L

R

/Y

L

/W

Br

B

Br
R

W

W

W

R

R

O

/B

O

/B

B

L

/W

L

/R

Br

/B

R

/Y

Br

/B

R

/W

L

B

B

R

B

B

Br

R

/W

B

/Y

Lg

Y

/R

Y

/R

B

B

B

Y

/G

R

/G

R

/L

R

/W

L

/R

R

/L

B

R

/Y

G

/W

B/L

B/L

Br/W

R

/Y

Ch

L

L

/W

L

/W

Ch

R

/B

L

/R

G

G

L/

R

B

G

/B

Ch

Ch

Ch

Ch

Lg

B

G

/Y

Br/L

W

W

W

W

R

R

Lg

R

/W

O

R

/W

Gy

/R

R

/W

O

/G

L

Y

B

/L

L

W

B

/L

R

Y

Lg

R

/W

R

/W

R

/W

Y

Y

Y

G

B

L

/Y

Y

/W

Ch

Y

/L

L

/Y

G

/B

R

/B

E

E

R

/B

R

/B

E

R

/B

A

G

/B

A

L

/B

R

/B

G

/B

L

/B

A

L

L

A

Y

Y

L

/R

L

/R

F

Y

/G

Y

/G

B

A

B

/L

B

/L

A

R

/G

R

/G

A

P

/L

P

/L

A

W

/G

W

/G

A

Br

/L

P

/W

B

/L

L

P

/B

B

/L

L

Br

/L

R

/G

P

/L

W

/G

Br

/L

A

R

/Y

A

P

/W

A

P

A

G

/W

G

B

/L

R

/Y

P

/W

P

/B

G

/W

B

/L

G

E

G

/B

L

/Y

G

/B

E

E

B

B

C

B

B

B

P

P

L

/R

B

F

G

G

C

L/

R

L/

R

C

R

/L

R

/L

A

(BLACK)

(BLACK)

Lg

EE

F

G

H

I

J

J

J

K

8

9

0

A

BC

D

1

2

3

4

5

6

7

L

M

N

O

P

Q

R

S

T

U

V

W

X

Y

Z

[

\

]

_

a

b

c

d

e

f

g

h

h

i

j

k

l

m

n

o

p

q

r

8-43

+

ELEC

GRIP WARMER SYSTEM

GRIP WARMER 
SYSTEM

CIRCUIT DIAGRAM

4 Main switch
5 Main fuse
7 Battery
B Engine stop switch
D Thumb warmer
E Grip warmer
H ECU (engine control unit)
Y Grip/thumb warmer adjust-

ment switch

Z Frame ground
d Multi-function meter
n Ignition fuse

8-44

+

ELEC

GRIP WARMER SYSTEM

TROUBLESHOOTING

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

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

Check the engine stop switch and main switch.
Refer to “IGNITION SYSTEM”.

Check the grip warmer and thumb warmer.

Check the grip/thumb warmer adjustment switch.

Check the grip warmer system wiring.
Refer to “CIRCUIT DIAGRAM”.

Correct the connection and/or replace the 
speedometer unit and/or ECU.

GRIP WARMER AND THUMB WARMER DO NOT OPERATE.

OK

FAULTY

Replace the main fuse and/or ignition fuse.

OK

OUT OF SPECIFICATION

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

OK

NO CONTINUITY

Replace the right handlebar switch and/or main 
switch.

OK

NO CONTINUITY

Replace the grip warmer and/or thumb warmer.

CORRECT

NO CONTINUITY

Replace the left handlebar switch.

OK

FAULTY

Properly connect or repair the grip warmer system 
wiring.

8-45

+

ELEC

GRIP WARMER SYSTEM

GRIP WARMER AND THUMB WARMER

1. Disconnect:

• Grip warmer couplers
• Thumb warmer coupler

2. Connect:

• Pocket tester

(to the grip warmer couplers and/or thumb
warmer coupler)

3. Measure:

• Grip warmer resistance 1 
• Thumb warmer resistance 2 

Out of specification 

→ Replace the defective

part(s).

Grip warmer resistance:

6.12 ~ 7.48 

 at 20 °C (68 °F)

(Black – Black)

Thumb warmer resistance:

36.99 ~ 45.21 

 at 20 °C (68 °F)

(White – Black)

+

Ω × 1

2

W

B

B

B

1

GRIP/THUMB WARMER ADJUSTMENT 
SWITCH

1. Disconnect:

• Grip/thumb warmer adjustment switch coupler

2. Connect:

• Pocket tester

(to the grip/thumb warmer adjustment switch
coupler)

3. Check:

• Grip/thumb warmer adjustment switch conti-

nuity 
Faulty 

→ Replace the left handlebar switch.

Continuity

Switch 

position

Color code

Y/W

B/L

Y/L

THUMB

OFF

GRIP

Y/W Y/L

B/L

 

 

 

 

 

 

 

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