Troubleshooting - Yamaha TW125 1999 Service Manual

EAS00794

TROUBLESHOOTING

S Any of the following fail to light: turn sig-
nal light, brake light or an indicator light.
S The horn fails to sound.
Check:
1. fuse
2. battery
3. main switch
4. wiring
(of the entire signaling system)
NOTE:
S Before troubleshooting, remove the following
part(-s):
1) side covers (left and right)
2) seat
3) fuel tank
S Troubleshoot with the following special
tool(-s).
Pocket tester
90890-03112
EAS00738
1. Fuse
S Check the fuse for continuity.
Refer to "CHECKING AND CHARGING THE
FUSES" in chapter 3.
S Is the fuse OK?
YES NO
Replace the fuse(-s).
SIGNAL SYSTEM
2. Battery
S Check the condition of the battery.
Refer to "CHECKING THE BATTERY" in
chapter 3.
Specific gravity
1.280 at 20_C
S Is the battery OK?
YES
EAS00749
3. Main switch
S Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
S Is the main switch OK?
YES
EAS00795
4. Wiring
S Check the entire signaling system's wiring.
Refer to "CIRCUIT DIAGRAM".
S Is the signaling system's wiring properly con-
nected and without defects?
YES
Check the condition
of each of the signal-
ing system's circuits.
Refer to "CHECKING
THE SIGNALING SY-
STEM".
7-29
ELEC
NO
S Refill the battery fluid.
S Clean the battery ter-
minals.
S Recharge or replace
the battery.
NO
Replace the main sw-
itch.
NO
Properly connect or
repair the signaling
system's wiring.