2004 YAMAHA TT600RE bulb

ELECLIGHT INSPECTION
7-9
When removing a bulb be careful to hold the
bulbholder or its housing firmly. Never pull the
cable, as it might detach from the terminal
inside the connector.
CAUTION:
WARNING
Keep inflammable products and hands well
away from bulbs when they are on (danger of
burns and fire). Do not touch the bulb before it
is cool.
2. Check the continuity between the bulb termi- nals.
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Control procedure:
•Set the tester selector to Ωx 1”.
•Connect the tester terminals to the bulb pins.
Take, for example, a three pin bulb as shown
in the figure. First check continuity between
pins (1) and (2), connecting tester terminal (+)
to pin (1) and terminal (–) to pole (2). Then
check the continuity between poles (1) and
(3), again connecting tester terminal (+) to
pole (1), and terminal (–) to pole (3). If the
tester indicates “ ∞”, even in one case only, the
bulb must be replaced.
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3. . Check the bulb attachment by installing a test bulb. Furthermore, during inspection of
the bulbs, connect the tester terminals to the
respective socket cables and check continuity
as described.
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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
7-57
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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SIGNAL SYSTEM
7-58
ELEC
3. Voltage.
•Connect the pocket tester (DC 20V) to the
bulbholder connector.
Tester terminal (+) ➔Green/Yellow cable (1)
Tester terminal (–) ➔Black terminal (2)
•Turn the main switch to ON.
•The brake lever is pulled or the brake
pedal is pressed.
•Check the voltage (12V) on the
“Green/Yellow” 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.
CONTINUITY
DISCONTINUITY
Replace the bulb and/or bulbholder.
3. The direction indicator light and/or the direc- tion indicator light fail to flash.
1. Bulb and bulbholder.
•Check the continuity of the bulb and bulb-
holder.
Refer to “BULB INSPECTION” section.
2. Direction indicator switch.
•Disconnect the left handlebar switch con-
nector from the wire harness.
•Connect the pocket tester ( Ωx 1) to the
left handlebar switch cables.
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SIGNAL SYSTEM
7-60
ELEC
OUT OF SPECIFICATION The direction indicator lamp relay is defective.
Replace.
IN COMPLIANCE WITH
SPECIFICATIONS (12V)
* *
4. Voltage.
•Connect the pocket tester (DC 20V) to the
bulbholder connector.
Tester terminal (+) ➔
Brown/White terminal (1)
Tester terminal (–) ➔Earth
•Turn the main switch to ON.
•Check the voltage (12V) on the “Blue”
cable to the bulbholder connector.
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