Troubleshooting - Yamaha CS50 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 fuse
2. battery
3. main switch
4. wiring connections
(of the entire signaling system)
NOTE:
• Before troubleshooting, remove the follo-
wing part(s):
1.Front upper cowling
2.Footrest board
3.Handlebar cover (upper)
• Troubleshoot with the following special
tool(s).
Pocket tester
90890-03112
EAS00738
1. Main fuse
• Check the fuse for continuity.
Refer to "CHECKING THE FUSES" in chap-
ter 3.
• Is the fuse OK?
YES
Replace the fuse.
EAS00739
2. Battery
• Check the condition of the battery.
Refer to "CHECKING AND CHARGING THE
BATTERY" in chapter 3.
Minimum open-circuit voltage
12.8 V or more at 20°C
• Is the battery OK?
YES
• Clean the battery
terminals.
NO
NO
• Recharge or
replace the
battery.
SIGNALING SYSTEM
EAS00749
3. Main switch
• Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the main switch OK?
YES
EAS00795
4. Wiring
• Check the entire signal system's wiring.
Refer to "CIRCUIT DIAGRAM".
• Is the signaling system's wiring properly
connected and without defects?
YES
Check the condition
of each of the
signaling system's
circuits.
Refer to "CHEC-
KING THE SIGNA-
LING SYSTEM".
8-28
ELEC
NO
Replace the main
switch.
NO
Properly connect or
repair the signaling
system's wiring.