light YAMAHA TT600RE 2004 Workshop Manual

LIGHT SYSTEM
7-44
ELEC
3. Main switch.
•Disconnect the main switch connector
from the wire harness.
•Connect the pocket tester ( Ωx 1) to the
switch cables.
Refer to “SWITCH CHECK” in CHAPTER
3.
CORRECT
INCORRECT
The main switch is defective. Replace.










*
4. Dipped/high beam commutator and dim-
mer switch.
•Disconnect the left handlebar switch con-
nector from the wire harness.
•Connect the pocket tester ( Ωx 1) to the
left handlebar switch terminals.
•Check the switch component for conti-
nuity between “Brown (1)” and “Yellow
(2)”, “Brown/Blue (3)” and “Green (4)”,
“Brown/Blue (3)” and “Yellow (2)”.
Refer to “SWITCH CHECK” in CHAPTER
3.
INCORRECT
The dipped/high beam commutator and/or the
dimmer switch are defective. Replace the left
handlebar switch.
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CORRECT
*
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ELECLIGHT SYSTEM
7-45
*
CORRECT
DEFECTIVE CONNECTIONS Repair.6. Harness connections.
•Check the connections of the entire light
system.
Check the conditions of each circuit for the
entire light system.
See the “ELECTRIC CIRCUIT DIAGRAM”.
5. Starter circuit cut-off relay.
•Connect the pocket tester (DC 20V) and
the battery (12V) to the cut-off relay con-
nector terminal of the starter circuit.
Battery terminal (+) ➔
White/Black terminal (1)
Battery terminal (–) ➔Black terminal (2)
Tester terminal (+) ➔Brown terminal (3)
Tester terminal (–) ➔Earth
DISCONTINUITY
The starter circuit cut-off relay is defective.
Replace.
•Turn the main switch to ON.
•Check the voltage (12V) on the
“Brown/Blue” and “Brown” cable to the
connector terminal of the starter circuit
cut-off relay.
IN COMPLIANCE WITH
SPECIFICATIONS (12V)
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LIGHT SYSTEM
7-46
ELEC
LIGHT SYSTEM INSPECTION NOTE:
To proceed to the control of the light system, start the engine and then stop it by the emergency engine
stop switch. In this way the light relay remains excited and it is possible to check the light system.
1. The front headlight and the high beam light fail to turn on.
CONTINUITY
DISCONTINUITY
Replace the bulb and/or the bulbholder.1. Bulb and bulbholder.
•Check the continuity of the bulb and bulb-
holder.
Refer to “BULB INSPECTION” section.
2. Voltage.
•Connect the pocket tester (DC 20V) to the
front headlight connectors and the high
beam switch.
Headlight: Tester terminal (+) ➔
Green (2) or Yellow (1) cable
Tester terminal (–) ➔Black cable (3)
High beam light: Tester terminal (+) ➔Yellow cable (4)
Tester terminal (–) ➔Black cable (5)
[A] When the lights switch (commutator) is at
position “HI”.
[B] When the lights switch (commutator) is at position “LO”.
OUT OF SPECIFICATION
The circuit from the main switch to the bulbhol-
der connector is defective. Repair.
A
B
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ELECLIGHT SYSTEM
7-47
CONTINUITY
DISCONTINUITY Replace the bulb and/or the bulbholder.1. Bulb and bulbholder.
•Check the continuity of the bulb and bulb-
holder.
Refer to “BULB INSPECTION” section.
2. Voltage.
•Connect the pocket tester (DC 20V) to the
bulbholder connector.
Tester terminal (+) ➔Blue cable (1)
Tester terminal (–) ➔Black cable (2)
•Turn the main switch to ON.
•Check the voltage (12V) on the “Blue”
cable of the bulbholder connector.
OUT OF SPECIFICATION
The circuit from the main switch to the bulbhol-
der connector is defective. Repair.
IN COMPLIANCE WITH
SPECIFICATIONS (12V)
•Turn the main switch to ON.
•Turn the lights switch to “LO” or “HI”.
•Check the voltage (12V) on the “Green”
and “Yellow” cable at the bulbholder ter-
minals.
The circuit is efficient.
IN COMPLIANCE WITH
SPECIFICATIONS (12V)
The circuit is efficient.
2. The instrument light and/or the parking indica- tor light fails to turn on.
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LIGHT SYSTEM
7-48
ELEC
CONTINUITY
DISCONTINUITY Replace the bulb and/or bulbholder.
1. Bulb and bulbholder.
•Check the continuity of the bulb and bulb-
holder.
Refer to “BULB INSPECTION” section.
2. Voltage.
•Connect the pocket tester (DC 20V) to the
bulbholder connector.
Tester terminal (+) ➔Blue terminal (1)
Tester terminal (–) ➔Black terminal (2)
•Turn the main switch to ON.
•Check the voltage (12V) on the “Blue”
cable of the bulbholder connector.
OUT OF SPECIFICATION
The circuit from the main switch to the bulbhol-
der connector is defective. Repair.
IN COMPLIANCE WITH
SPECIFICATIONS (12V)
The circuit is efficient.
3. The parking light fails to turn on.
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ELECLIGHT SYSTEM
7-49
CONTINUITY
DISCONTINUITY Replace the bulb and/or bulbholder.1. Bulb and bulbholder.
•Check the continuity of the bulb and bulb-
holder.
Refer to “BULB INSPECTION” section.
2. Voltage.
•Connect the pocket tester (DC 20V) to the
bulbholder connector.
Tester terminal (+) ➔Blue terminal (1)
Tester terminal (–) ➔Black terminal (2)
•Turn the main switch to ON.
•Check the voltage (12V) on the “Blue”
cable of the bulbholder connector.
OUT OF SPECIFICATION
The circuit from the main switch to the bulbhol-
der connector is defective. Repair.
IN COMPLIANCE WITH
SPECIFICATIONS (12V)
The circuit is efficient.
4. The rear light fails to turn on.
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ELECSIGNAL SYSTEM
7-51
467C4B5CAMP403D494A4856 172320-2
GWLY
BB
B
BBLWRB
R
B
B
B
RLBOrRBLYGW
Or
B
LW
MAIN HARNESSB
B
B
Y Y
LBG
LGRBLYGWLWLBOrRB
LW
GY
GY
RBBr
Br187
GB
12V10W
BL12V5WBY G
12V60/55WBGYAA
12V10W
A
GB
BrBBrB
BGBB
GBBGBB
BrB
12V10WB
B
BrL
GB
12V10WB
B
187
BY
B
R
B
BrL
WWB
OFF
BrL
W
B
W
BB
B
B BLB
BBrB
G
B
BrB
Br
OFF
B
EXT. CORD
Br
GY
BL
G
Y
GYB
B
L
GB
BrB
LR
LR Sb
B
RW
-
LR
L
BrL
GBSbB
BrB
YBrBrB
YBrGB
B
Ch
DgBrY
BrB
HIGH
TURN
NEU.ILL.
B
BrL
BrL
LBBY
LY LB
LY
GWB
RBOr
205
B
RBL
BrL
Br
PARKOFFON
ON
ON
Sb
L
GB
GY

G
Y
RBLYBY
LYBY
RUN
LW
B
B
LY
BY
LBrRR
LWRB
GB
R
B
GW
BrBrW
WB
Br
LY
WB
Sb
B
GWLY
(BLUE)B
B
LYB
OFF
BrRB
LWRB
Y
P
G
GB BBrWBrL
BrB
W
WW
GYBr
GY
Y
P
G
GB B
BrWBrL
BrB
Y
N
RL
LOWHIGH
BrW Br
P
PBr
LY
B
GWLY
Or
RB
Br
LW
BY
BY
START
OFF
R
B
GWLY
W
W W
W
W
W
W
RW
W
W
Sb
B
Sb
BBrBB
-
-
B
LR
WRW
B
-
AL
L
GY
LB
Br
WB
RB
MAIN HARNESS
AHEAD LIGHT
B
B
BrB
17
16
11
12
13
14
15
91029
8
5
3
12
6428
20
21
22
19
2325
24
30
31
27
267
32
18
BrW
SIGNAL SYSTEM - CIRCUIT DIAGRAM
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SIGNAL SYSTEM
7-52
ELEC
The diagram shows the signal system circuit inside the electric system of the motorcycle. NOTE:
For the colour codes and complete legend, see page 7-2.
(3) Battery
(6) Fuse
(7) Main switch
(11) Diode
(14) Neutral switch
(15) Diode
(18) Left handlebar switch
(19) Horn switch (23) Flasher switch
(24) Horn
(25) Flasher relay
(27) Flasher light
(29) Front brake switch
(30) Rear brake switch
(31) Tail/stop light
(32) Meter
&
(
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&
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ELECSIGNAL SYSTEM
7-53
DIAGNOSTICS
•THE FLASHER LIGHTS, BRAKE LIGHT AND/OR WARNING LIGHTS FAIL TO TURN ON.
•THE HORN FAILS TO SOUND.
Procedure
Check:
1. Fuse
2. Battery
3. Main switch
4. Harness connections (entire system of con- nections)
NOTE:
•Before starting inspections, remove the following parts:
1. Seat
2. Rear cowling
3. Cowling (headlight)
4. Tail light cover
•To check for operating faults use the following special tools.
Pocket tester: P/N. 90890-03112
1. Fuse
•Check the fuse for continuity.
Refer to “CHECKING THE FUSES” in
Chapter 3.
•Is the fuse OK?
YES
2. Battery.
•Check the condition of the battery.
Refer to “CHECKING AND CHARGING
THE BATTERY” in Chapter 3.
Min. open-circuit voltage:
12.8 V or more at 20°C (68°F)
•Is the battery OK?
NO
Replace the fuse.
NO
•Clean the battery terminals.
•Recharge or replace the battery.
YES
*
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ELECSIGNAL SYSTEM
7-57
CONTINUITY
DISCONTINUITY Replace the bulb and/or bulbholder.1. Bulb and bulbholder.
•Check the continuity of the bulb and bulb-
holder.
Refer to “BULB INSPECTION” section.
2. The rear stop light fails to turn on.
2. Brake switch.
•Disconnect the brake switch cables and
the connector from the wire harness.
•Connect the pocket tester ( Ωx 1) to the
brake switch terminals.
•Check the switch component for conti-
nuity between “Green/Yellow (1)” and
“Brown (2)”, or “Black (3)” and “Black (4)”. Refer to “SWITCH CHECK” section.
[A] Front brake switch
[B] Rear brake switch
INCORRECT
The brake switch is defective. Replace.
*
ON (Step down)
OFF (Free) BB
BB
G/Y Br
34
2
G/Y RW
1
ON (Pull in) OFF (Free)
G/Y
Br
A
B
Br
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