fuel YAMAHA VX110 2005 Workshop Manual

7-22
E
–+ELECIGNITION SYSTEM
MAIN AND FUEL PUMP RELAY
1. Check:
• Main and fuel pump relay continuity
Faulty → Replace.
Checking steps:
 Connect the tester leads to the main and
fuel pump relay terminals 5 and 6 or 7.
 Connect terminals 2 or 3 to the positive
battery terminal.
 Connect terminal 1 to the negative bat-
tery terminal.
 Check that there is continuity between
the main and fuel pump relay terminals.
 Check that there is no continuity between
the main and fuel pump relay terminals
after disconnecting terminals 1, 2, or
3.
 Connect the tester leads between main
and fuel pump relay terminals 7 and 8.
 Connect terminals 4 to the negative bat-
tery terminal.
 Connect terminal 6 to the positive bat-
tery terminal.
 Check that there is continuity between
the main and fuel pump relay terminals.
 Check that there is no continuity between
the main and fuel pump relay terminals
after disconnecting terminals 4 or 6.
–+
8
7
6
5
4
3
2
1
–+
8
7
6
5
4
3
2
1
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7-31
E
–+ELECFUEL CONTROL SYSTEM
FUEL CONTROL SYSTEM
WIRING DIAGRAM
10A
10A
3A
30A20A
RR
BBR
B/W
B/O
B/O
B/R
P/R
P/R
P/W
P/W
B/O
L/B
B/WB/R
B/O
P/RP/W
G
O
W
O
OLG
WR/YP/GY/G
B
OL
PB
Pu/RPu/B
Pu/GPu/Y
P/W
R/Y
W/B
Y/WL/R
B
BBP
P
P
BBP
R/Y
B/OL/BB/OL/B
P/G
P/W
B/O
B/O
B/YB/YR/Y
R/Y
R/Y
R/YPu/G
Pu/Y
Pu/B
Pu/RR/Y
R/Y
R/Y
R/Y
R/YY/W
Y/GL/R
O
P
P
O
R
R
L
R
R
B
BLBL
B
B/GPPB
W/BR/YB RW
9 87
E
E E E FGH I3
4
56 2 1
0
A
B
C
D J
K
1Battery
2Fuse (30 A)
3Fuse (20 A)
4Fuse (10 A)
5Fuse (10 A)
6Starter relay
7Main and fuel pump relay
8Electronic control throttle valve
relay9Slant detection switch
0Sensor assembly
(intake air pressure and intake
air temperature)
AEngine temperature sensor
BThermoswitch (engine)
CThermoswitch (exhaust)
DOil pressure switch
EFuel injectorFECM
GThrottle body assembly
HAccelerator position sensor
IElectric fuel pump
JFuel sender
KMultifunction meter
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7-32
E
–+ELECFUEL CONTROL SYSTEM
WIRING DIAGRAM
10A
10A
3A
30A20A
RR
BBR
B/W
B/O
B/O
B/R
P/R
P/R
P/W
P/W
B/O
L/B
B/WB/R
B/O
P/RP/W
G
O
W
O
OLG
WR/YP/GY/G
B
OL
PB
Pu/RPu/B
Pu/GPu/Y
P/W
R/Y
W/B
Y/WL/R
B
BBP
P
P
BBP
R/Y
B/OL/BB/OL/B
P/G
P/W
B/O
B/O
B/YB/YR/Y
R/Y
R/Y
R/YPu/G
Pu/Y
Pu/B
Pu/RR/Y
R/Y
R/Y
R/Y
R/YY/W
Y/GL/R
O
P
P
O
R
R
L
R
R
B
BLBL
B
B/GPPB
W/BR/YB RW
9 87
E
E E E FGH I3
4
56 2 1
0
A
B
C
D J
K
B: Black
G: Green
L: Blue
O : Orange
P: Pink
R: Red
W: White
B/G : Black/green
B/O : Black/orangeB/R : Black/red
B/W : Black/white
L/B : Blue/black
L/R : Blue/red
P/G : Pink/green
P/R : Pink/red
P/W : Pink/white
Pu/B : Purple/black
Pu/G : Purple/greenPu/R : Purple/red
Pu/Y : Purple/yellow
R/Y : Red/yellow
W/B : White/black
Y/G : Yellow/green
Y/W : Yellow/white
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7-33
E
–+ELECFUEL CONTROL SYSTEM
ELECTRIC FUEL PUMP
1. Check:
Fuel pump operating sound
Fuel pump does not sound →
Measure
the fuel pressure.
Refer to “FUEL INJECTION SYSTEM”
in Chapter 4.
FUEL SENDER
1. Measure:
Fuel sender resistance
Out of specification →
Replace.
Float
positionResistance (
Ω)
A 133.5–136.5
B5–7
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7-34
E
–+ELECFUEL CONTROL SYSTEM
FUEL INJECTOR
Refer to “FUEL INJECTION SYSTEM”
in Chapter 4.
MAIN AND FUEL PUMP RELAY
Refer to “IGNITION SYSTEM”.
OIL PRESSURE SWITCH
Refer to “INDICATION SYSTEM”.
THERMOSWITCH (ENGINE)
Refer to “IGNITION SYSTEM”.
THERMOSWITCH (EXHAUST)
Refer to “IGNITION SYSTEM”.
SLANT DETECTION SWITCH
Refer to “IGNITION SYSTEM”.
REMOTE CONTROL UNIT
(DELUXE MODEL ONLY)
Refer to “REMOTE CONTROL SYS-
TEM (DELUXE MODEL ONLY)”.
THROTTLE POSITION SENSOR
Refer to “IGNITION SYSTEM”.
ACCELERATOR POSITION SENSOR
Refer to “IGNITION SYSTEM”.
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7-35
E
–+ELECSTARTING SYSTEM
STARTING SYSTEM
WIRING DIAGRAM
WBrBRFREE
PUSHBWFREE
PUSH
Br BrFREE
PUSH
BW
W
BrBrBrBrR
RB/O
10A
10A
3A
30A20A
RR
B
BBR
BBr
BBr
B
B/W
B/O
B/O
B/R
P/R
P/R
P/W
P/W
B/O
B/WB/R
B/O
P/RP/W
W
W
WL
RY
G
O
W
O
OLG
W
Y
W
G/O
R/YY/G
BOL
BW
R/Y
Y/WL/R
B
B
G/OB/OG/OR/YB/O
R/Y
R/Y
R/Y
Y/W
Y/GL/R
Y
O
O
R
RL
R
B
BLBL
Y BrL R B
Br W
09
B
C DEF G
5 4
6
78 3 I
HJ1
2
A
1Battery
2Starter motor
3Fuse (30 A)
4Fuse (20 A)
5Fuse (3 A)
6Fuse (10 A)
7Fuse (10 A)
8Starter relay
9Main and fuel pump relay0Electronic control throttle valve
relay
ACam position sensor
BRemote control unit
CAntenna
DECM
EThrottle body assembly
FAccelerator position sensor
GElectric fuel pumpHStart switch
IEngine stop switch
JEngine shut-off switch
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7-37
E
–+ELECSTARTING SYSTEM
BATTERY
Refer to “ELECTRICAL” in Chapter 3.
WIRING CONNECTIONS
1. Check:
Wiring connections
Poor connections →
Properly connect.
FUSES
1. Check:
Fuses
Broken →
Replace.
NOTE:
The 3 A fuse is for the remote control unit
(Deluxe model only).
The 10 A fuse is for the main and fuel pump
relay and the electronic control throttle valve
relay.
The 20 A fuse is for main and fuel pump relay.
The 30 A fuse is for the main relay.
Fuse ratings:
3 A, 10 A, 20 A, 30 A
START SWITCH
1. Check:
Continuity
Out of specification →
Replace.
Start switch continuity
(natural color coupler)
Clip PositionLeads
Red Brown
Installed Free
Push
Removed Free
Push
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7-45
E
–+ELECOFF THROTTLE STEERING SYSTEM
OFF THROTTLE STEERING SYSTEM
WIRING DIAGRAM
10A
10A
3A
30A20A
RR
BBR
B/W
B/O
B/O
B/O
B/R
P/R
P/R
B/O
W/B
P/W
P/W
B/WB/R
B/O
P/RP/W
G
O
O
W
BW
O
OLG
W
W/BR/Y
W/LY/G
R/Y
BL
BPu/RPu/B
Pu/GPu/Y
R/Y
Y/WL/R
R/Y
R/Y
R/Y
R/YPu/G
Pu/Y
Pu/B
Pu/RR/Y
R/Y
R/Y
R/YY/W
Y/G
L/R
R
R
R
B
W/LBOW/LB/OO
R
98
0
0 0 0 ABC D E1
4
5
67 32
1Battery
2Starter motor
3Fuse (30 A)
4Fuse (20 A)
5Fuse (10 A)
6Fuse (10 A)
7Starter relay
8Main and fuel pump relay
9Electronic control throttle valve relay0Fuel injector
AECM
BThrottle body assembly
CAccelerator position sensor
DPickup coil
ESteering sensor
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7-48
E
–+ELECINDICATION SYSTEM
INDICATION SYSTEM
WIRING DIAGRAM
10A
10A
3A
30A20A
RR
BBR
BBr
BBr
B/OW/B
B/O
B/O
WR
Y
G
O
BW
Y
W
G/OW/B
Y/GR/Y
B
PB
Pu/RPu/B
Pu/GPu/Y
P/W
B/G
R/Y
W/B
B/Y
Y/WL/R
B/RB/W
B
B
BBP
P
PBBP
R/Y
B/G
G/OB/OG/O
P/W
B/OB/YB/YR/Y
R/Y
R/Y
B/LL/YL/B
R/YPu/G
Pu/Y
Pu/B
Pu/RR/Y
R/Y
R/Y
R/YB/YR/Y
R/Y
B/O
B/RR/Y
R/Y
R/YY/W
Y/GL/R
Y
P
P
O
O
R
R
R
B
G
BR
Y
B/YR/W
BRW
P
PB
B/LL/R
L/RL/B
B/WR
BW/BR/YL/RL/YL/B Gy B/G
YB/YR/Y
98
A
A A
A
G
G GG
H IJ K4 3
5
67 2 1
0
0 0
0
B
C
D
E
F LM
N
1Battery
2Fuse (30 A)
3Fuse (20 A)
4Fuse (3 A)
5Fuse (10 A)
6Fuse (10 A)
7Starter relay
8Main and fuel pump relay9Electronic control throttle valve
relay
0Ignition coil
ASpark plug
BCam position sensor
CEngine temperature sensor
DThermoswitch (engine)
EThermoswitch (exhaust)
FOil pressure switchGFuel injector
HRemote control unit
(Deluxe model only)
IECM
JPickup coil
KBuzzer
LFuel sender
MSpeed sensor
NMultifunction meter
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7-50
E
–+ELECINDICATION SYSTEM
FUSE
Refer to “STARTING SYSTEM”.
BATTERY
Refer to “ELECTRICAL” in Chapter 3.
MAIN AND FUEL PUMP RELAY
Refer to “IGNITION SYSTEM”.
ECM
Refer to “IGNITION SYSTEM”.
ENGINE TEMPERATURE SENSOR
Refer to “IGNITION SYSTEM”.
THERMOSWITCH (ENGINE)
Refer to “IGNITION SYSTEM”.
THERMOSWITCH (EXHAUST)
Refer to “IGNITION SYSTEM”.
REMOTE CONTROL UNIT
(DELUXE MODEL ONLY)
Refer to “REMOTE CONTROL SYS-
TEM (DELUXE MODEL ONLY)”.
BUZZER
1. Check:
Buzzer
Buzzer does not sound → Replace.
Checking steps:
Connect the battery (12 V) to the buzzer
coupler as shown.
Battery positive terminal →
Red (R) terminal 1
Battery negative terminal →
Black (B) terminal 2
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