turn signal YAMAHA YZF-R1S 2004 Owner's Manual

8-38
SIGNALING SYSTEMELEC
NO
YESNO
The wiring circuit
from the main switch
to the tail / brake light
coupler is faulty and
must be repaired.
This circuit is OK.
YES 1. Turn signal indicator light (LEDs)

Check the turn signal indicator light for conti-
nuity.
Refer to “CHECKING THE LEDs”.

Are the turn signal indicator light OK?
Replace the meter
assembly.
EAS00799
3. The turn signal / position light, turn signal in-
dicator light or both fail to blink.
YES
2. Turn signal switch

Check the turn signal switch for continuity.
Refer to “CHECKING THE SWITCHES”.

Is the turn signal switch OK?
Replace the left han-
dlebar switch.
3. Voltage

Connect the pocket tester (DC 20 V) to the
turn signal relay coupler (wire harness side)
as shown.
Positive tester probe
brown
Negative tester probe
ground
1

Turn the main switch to “ON”.

Measure the voltage (DC 12 V) on brown
at the turn signal relay coupler (wire harness
side).

Is the voltage within specification?
1
YESNO
The wiring circuit
from the main switch
to the turn signal
relay coupler is faulty
and must be re-
paired.
YESNO 4. Voltage

Connect the pocket tester (DC 20 V) to the
turn signal relay coupler (wire harness side)
as shown.
The turn signal relay
is faulty and must be
replaced. Positive tester probe
brown / white
Negative tester probe
ground
1

Turn the main switch to “ON”.

Measure the voltage (DC 12 V) on
brown / white at the turn signal relay cou-
pler (wire harness side).

Is the voltage within specification?
1
NO
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8-39
SIGNALING SYSTEMELEC
C
YESNO
The wiring circuit
from the turn signal
switch to the turn sig-
nal light connector is
faulty and must be
repaired. Left turn signal / position light
Positive tester probe
chocolate
Negative tester probe
ground
Right turn signal / position light
Positive tester probe
dark green
Negative tester probe
ground
1
2

Turn the main switch to “ON”.

Set the turn signal switch to “ ” or “ ”.

Measure the voltage (DC 12 V) of the choco-
late or dark green at the turn signal light
connector (wire harness side).

Is the voltage within specification?
12
This circuit is OK.
AB
1. Neutral indicator light (LEDs)

Check the neutral indicator light for continu-
ity.
Refer to “CHECKING THE LEDs”.

Are the neutral indicator light OK?
EAS00801
4. The neutral indicator light fails to come on.
YESNO
Replace the meter
assembly.
YESNO 2. Neutral switch

Check the neutral switch for continuity.
Refer to “CHECKING THE SWITCHES”.

Is the neutral switch OK?
Replace the neutral
switch.
3. Starting circuit cut-off relay (diode)

Disconnect the starting circuit cut-off relay
coupler from the wire harness.

Connect the pocket tester (Ω
1) to the
starting circuit cut-off relay coupler as
shown.

Check the starting circuit cut-off relay for
continuity.
Positive tester probe

blue / yellow
Negative tester probe

sky blue Continuity
Positive tester probe

sky blue
Negative tester probe

blue / yellow No
continuity
1
2
2
1
EAS00753
5. Voltage

Connect the pocket tester (DC 20 V) to the
turn signal light connector or meter assem-
bly coupler (wire harness side) as shown.
Left turn signal light
Right turn signal light
Turn signal indicator light
A
B
C
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8-40
SIGNALING SYSTEMELEC
YESNO
Replace the starting
circuit cut-off relay.
YESNO 4. Voltage

Connect the pocket tester (DC 20 V) to the
meter assembly coupler (wire harness side)
as shown.
The wiring circuit
from the main switch
to the meter assem-
bly coupler is faulty
and must be re-
paired. Positive tester probe
brown
Negative tester probe
ground
1

Turn the main switch to “ON”.

Measure the voltage (DC 12 V) of brown
at the meter assembly coupler (wire harness
side).

Is the voltage within specification?
This circuit is OK.

Are the tester readings correct?
YESNO 1. Oil level warning light (LEDs)

Check the oil level warning light for continu-
ity.
When the main switch is turn to “ON”, the oil
level warning light is come on.

Are the oil level warning light OK?
Replace the meter
assembly.
EAS00802
5. The oil level warning light fails to come on.
YESNO 2. Oil level switch

Drain the engine oil and remove the oil level
switch from the oil pan.

Connect the pocket tester (Ω
100) to the
oil level switch as shown.
Replace the oil level
switch. Positive tester probe

Connector (white)
Negative tester probe
Body ground
1
12

Measure the oil level switch resistance.
Oil level switch resistance
114  126 Ω at 20C (68F)
484  536 Ω at 20C (68F)
1
2

Is the oil level switch OK?
2
When you switch the positive and negative
tester probes, the readings in the above
chart will be reversed.
NOTE:
1
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8-41
SIGNALING SYSTEMELEC
3. Voltage

Connect the pocket tester (DC 20 V) to the
meter assembly coupler (wire harness side)
as shown.
Positive tester probe
black / red
Negative tester probe
black / white
1
2

Turn the main switch to “ON”.

Measure the voltage (DC 12V) of black /
red and black / white at the meter as-
sembly coupler.

Is the voltage within specification?
12
YESNO
The wiring circuit
from the main switch
to the meter assem-
bly is faulty and must
be repaired.
This circuit is OK.
EAS00803
6. The fuel level warning light fails to come on.
1. Fuel sender

Drain the fuel from the fuel tank and remove
the fuel pump from the fuel tank.

Disconnect the fuel sender coupler from the
wire harness.

Connect the pocket tester (Ω
10) to the
fuel sender terminals as shown.
Positive tester probe
green / white
Negative tester probe
black
1
2
Fuel sender resistance
Full position of the float
20  26 Ω at 20C (68F)
Empty position of the float
134  140 Ω at 20C (68F)

Is the fuel sender OK? Measure the resistances when the float arm
is in contact with the full position and empty
position of the stopper.
NOTE:
Measure the fuel sender resistances.
YESNO
Replace the fuel
pump.
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8-42
SIGNALING SYSTEMELEC
YESNO 2. Voltage

Connect the pocket tester (DC 20 V) to the
meter assembly coupler (wire harness side)
as shown.
The wiring circuit
from the main switch
to the meter assem-
bly coupler is faulty
and must be re-
paired. Positive tester probe
green / white
Negative tester probe
black / white
1
2

Turn the main switch to “ON”.

Measure the voltage (DC 12 V) of
green / white and black / white at the
meter assembly coupler.

Is the voltage within specification?
This circuit is OK.
12
Replace the multi-
function meter.
NO
1. Multi-function meter bulb socket

Check the multi-function meter bulb socket
for continuity.
Refer to “CHECKING THE BULBS AND
BULB SOCKETS”.

Is the multi-function meter bulb socket OK?
YES
EAS008067. The speedometer fails to come on.
2. Speed sensor

Connect the pocket tester (DC 20 V) to the
speed sensor coupler (wire harness side)
as shown.
Replace the speed
sensor.
NOYES
Positive tester probe
white / yellow
Negative tester probe
black / blue1
2

Set the main switch to “ON”.

Elevate the rear wheel and slowly rotate it.

Measure the voltage (DC 5 V) of white / yel-
low and blue. With each full rotation of the
rear wheel, the voltage reading should cycle
from 0.6 V to 4.8 V to 0.6 V to 4.8 V.

Does the voltage reading cycle correctly?
This circuit is OK.
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9-6
FAULTY LIGHTING OR SIGNALING SYSTEM
TRBL
SHTG
TURN SIGNAL DOES NOT COME ON

Faulty turn signal switch

Faulty turn signal relay

Burnt-out turn signal bulb

Incorrect connection

Damaged or faulty wire harness

Improperly grounded circuit

Faulty battery

Blown, damaged or incorrect fuse
TURN SIGNAL BLINKS SLOWLY

Faulty turn signal relay

Faulty main switch

Faulty turn signal switch

Incorrect turn signal bulb
TURN SIGNAL REMAINS LIT

Faulty turn signal relay

Burnt-out turn signal bulb
TURN SIGNAL BLINKS QUICKLY

Incorrect turn signal bulb

Faulty turn signal relay

Burnt-out turn signal bulb
HORN DOES NOT SOUND

Improperly adjusted horn

Damaged or faulty horn

Faulty main switch

Faulty horn switch

Faulty battery

Blown, damaged or incorrect fuse

Faulty wire harness
EAS00866
FAULTY LIGHTING OR SIGNALING SYSTEM
HEADLIGHT DOES NOT COME ON

Wrong headlight bulb

Too many electrical accessories

Hard charging

Incorrect connection

Improperly grounded circuit

Poor contacts (main or light switch)

Burnt-out headlight bulb
HEADLIGHT BULB BURNT OUT

Wrong headlight bulb

Faulty battery

Faulty rectifier / regulator

Improperly grounded circuit

Faulty main switch

Faulty light switch

Headlight bulb life expired
TAIL / BRAKE LIGHT DOES NOT COME ON

Too many electrical accessories

Incorrect connection
TAIL / BRAKE LIGHT BULB BURNT OUT

Faulty battery

Incorrectly adjusted rear brake light switch
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59Clutch switch
60Turn signal switch
61Horn
62Front turn signal / position light (left)
63Front turn signal / position light (right)
64Rear turn signal light (left)
65Rear turn signal light (right)
66Headlight
67Auxiliary light
68License plate light
69Rear brake light switch
70Tail / brake light
71Headlight relay (on / off)
72Headlight relay (dimmer)
73Fuse (ignition)
74Fuse (signal)
75Fuse (headlight)
76Radiator fan motor relay
77Fuse (radiator fan motor left)
78Fuse (radiator fan motor light)
79Radiator fan motor 2
80Radiator fan motor 1
81Ground
COLOR CODE
B Black. . . . .
Br Brown. . . .
Ch Chocolate. . .
Dg Dark green. . .
G Green. . . .
Gy Gray. . .
L Blue. . . . .
Lg Light green. . . .
O Orange. . . .
P Pink. . . . .
R Red. . . . .
Sb Sky blue. . . .
W White. . . .
Y Yellow. . . . .
B / G Black / Green. .
B / L Black / Blue. . .
B / R Black / Red. .
B / W Black / White. .
B / Y Black / Yellow. .
Br / G Brown / Green.
Br / L Brown / Blue. .
Br / R Brown / Red. .
Br / W Brown / White.
G / B Green / Black. .
G / R Green / Red. .
G / W Green / White. . G / Y Green / Yellow. .
Gy / B Gray / Black.
Gy / G Gray / Green.
Gy / R Gray / Red.
L / B Blue / Black. . .
L / R Blue / Red. .
L / W Blue / White. .
L / Y Blue / Yellow. . .
O / B Orange / Black. .
O / G Orange / Green. .
P / W Pink / White. .
R / B Red / Black. .
R / G Red / Green. .
R / L Red / Blue. .
R / W Red / White. .
R / Y Red / Yellow. .
Sb / W Sky blue / White.
W / B White / Black. .
W / R White / Red. .
W / Y White / Yellow. .
Y / B Yellow / Black. .
Y / G Yellow / Green. .
Y / L Yellow / Blue. . .
Y / R Yellow / Red. .
Y / W Yellow / White. .
YZF-R1S / YZF-R1SC WIRING DIAGRAM
1Main switch
2A.C. magneto
3Rectifier / regulator
4Fuse (main)
5Fuse (backup)
6Battery
7Fuse (fuel injection)
8Starter relay
9Starter motor
10Starting circuit cut-off relay
11Neutral switch
12Sidestand switch
13Fuel pump
14E.C.U
15Ignition coil #1
16Ignition coil #2
17Ignition coil #3
18Ignition coil #4
19Spark plug
20Injector #1
21Injector #2
22Injector #3
23Injector #4
24Air induction system solenoid
25Sub-throttle position sensor
26EXUP servo motor
27Speed sensor
28Coolant temperature sensor
29Intake air temperature sensor
30Option switch
31Crankshaft position sensor
32Throttle position sensor
33Intake air pressure sensor
34Atmospheric pressure sensor
35Cylinder identification sensor
36Lean angle cut-off switch
37Meter assembly
38Fuel level warning light
39Oil level warning light
40Neutral indicator light
41Tacho meter
42Shift timing indicator light
43Multi function meter
44Engine trouble warning light
45Coolant temperature indicator light
46Hi beam indicator light
47Turn signal indicator light (left)
48Turn signal indicator light (light)
49Meter light
50Oil level switch
51Right handlebar switch
52Front brake light switch
53Engine stop switch
54Start switch
55Turn signal relay
56Left handlebar switch
57Dimmer switch
58Horn switch
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