YamahaT135.COM
ELEC
8-34
SIGNALING SYSTEM
EAS00797
2. The tail/brake light fails to come on.
1. Tail/brake light bulb and socket
9
Check the tail/brake light bulb and socket for
continuity.
Refer to “CHECKING THE BULBS AND
BULB SOCKETS”.
9
Are the tail/brake light bulb and socket OK?
3. Voltage
9
Connect the pocket tester (DC 20 V) to the
tail/brake light coupler (wire harness side) as
shown.
Positive tester probe
→
→
green/yellow
1
1
Negative tester probe
→
→
black
2
2
9
Set the main switch to “ON”.
9
Pull in the brake lever or push down on the
brake pedal.
9
Measure the voltage (DC 12 V) of green/yel-
low lead terminal
1
on the tail/brake light
coupler (wire harness side).
9
Is the voltage within specification?
2. Brake light switches
9
Check the brake light switches for continuity.
Refer to “CHECKING THE SWITCHES”.
9
Is the brake light switch OK?
YES
NO
Replace the tail/
brake light bulb,
socket or both.
YES
NO
Replace the brake
light switch.
YES
NO
The wiring circuit
from the main
switch to the
tail/brake light cou-
pler is faulty and
must be repaired.
This circuit is OK.
B
Ch
L
Dg
Y
L
Dg
B
G
/
Y
Ch
1
2
5YP-F8197-E0_8_1 05.6.27 19:27 Page 34
Yamaha T135 Service Manual
YamahaT135.COM
Summary of Contents for T135S
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Page 12: ...Y a m a h a T 1 3 5 C O M GEN INFO Yamaha T135 Service Manual YamahaT135 COM ...
Page 22: ...Y a m a h a T 1 3 5 C O M SPEC Yamaha T135 Service Manual YamahaT135 COM ...
Page 106: ...Y a m a h a T 1 3 5 C O M ENG Yamaha T135 Service Manual YamahaT135 COM ...
Page 198: ...Y a m a h a T 1 3 5 C O M ENG Yamaha T135 Service Manual YamahaT135 COM ...
Page 200: ...Y a m a h a T 1 3 5 C O M COOL Yamaha T135 Service Manual YamahaT135 COM ...
Page 212: ...Y a m a h a T 1 3 5 C O M CARB Yamaha T135 Service Manual YamahaT135 COM ...
Page 290: ...Y a m a h a T 1 3 5 C O M CHAS Yamaha T135 Service Manual YamahaT135 COM ...
Page 292: ...Y a m a h a T 1 3 5 C O M ELEC Yamaha T135 Service Manual YamahaT135 COM ...
Page 340: ...Y a m a h a T 1 3 5 C O M ELEC Yamaha T135 Service Manual YamahaT135 COM ...
Page 342: ...Y a m a h a T 1 3 5 C O M TRBL SHTG Yamaha T135 Service Manual YamahaT135 COM ...
Page 346: ...Y a m a h a T 1 3 5 C O M TRBL SHTG Yamaha T135 Service Manual YamahaT135 COM ...
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