Troubleshooting - Yamaha VMX12 2001 Service Manual

EAS00794

TROUBLESHOOTING

• Any of the following fail to light: flasher
light, brake light or an indicator light.
• The horn fails to sound.
Check:
1. main, ignition, and signaling system fuses
2. battery
3. main switch
4. wiring connections (of the entire signaling
system)
NOTE:
@
• Before troubleshooting, remove the following
part(s):
1) top cover
2) electrical components board
3) rider seat
4) main switch cover
5) left side cover
• Troubleshoot with the following special
tool(s).
@
Pocket tester
90890-03112
EAS00738
1. Main, ignition, and signaling system fuses
• Check the main, ignition, and signaling sys-
tem fuses for continuity.
Refer to "CHECKING THE FUSES" in
chapter 3.
• Are the main, ignition, and signaling system
fuses OK?
YES
NO
Replace the fuse(s).
SIGNALING SYSTEM
EAS00739
2. Battery
• Check the condition of the battery.
Refer to "CHECKING THE BATTERY" in
chapter 3.
Minimum open-circuit voltage
12.8 V or more at 20 °C
• Is the battery OK?
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3. Main switch
• Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the main switch OK?
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4. Wiring connections
• Check the entire signaling system's wiring.
Refer to "CIRCUIT DIAGRAM".
• Is the signaling system's wiring properly
connected and without defects?
Check the condition
of each of the signal-
ing system's circuits.
Refer to "CHECK-
ING THE SIGNAL-
ING SYSTEM".
8 - 36
ELEC
YES
• Clean the battery
terminals.
• Recharge or
replace the battery.
YES
Replace the
switch.
YES
Properly connect or
repair the signaling
system's wiring.
– +
NO
NO
main
NO