Troubleshooting - Yamaha XC50V Service Manual

EAS00794

TROUBLESHOOTING

8 8 8 8 8 Any of the following fail to light: turn
signal light, brake light or an indica-
tor light.
8 8 8 8 8 The horn fails to sound.
Check:
1. main fuse
2. battery
3. main switch
4. wiring connections
(of the entire signaling system)
NOTE:
8 Before troubleshooting, remove the follow-
ing part(s):
1. Head light cover/Leg shield 1
2. Battery cover
3. Seat/Trunk
4. Rear carrier
5. Front cover
6. Side cover (left and right)/Rear cover
8 Troubleshoot with the following special
tool(s).
Pocket tester
90890-03132 (YU-03112-C)
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1. Main fuse
8 Check the main fuse for continuity.
Refer to "CHECKING THE FUSE" in
chapter 3.
8 Is the fuse OK?
YES NO
Replace the fuse.
SIGNALING SYSTEM
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2. Battery
8 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
8 Is the battery OK?
YES
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3. Main switch
8 Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
8 Is the main switch OK?
YES
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4. Wiring
8 Check the entire signal system's wiring.
Refer to "CIRCUIT DIAGRAM".
8 Is the signaling system's wiring properly
connected and without defects?
YES
Check the condition
of each of the signal-
ing system's circuits.
Refer to "CHECKING
THE SIGNALING
SYSTEM".
8-33
- +
ELEC
NO
8Clean the battery
terminals.
8 Recharge or re-
place the battery.
NO
Replace the main
switch.
NO
Properly connect or
repair the signaling
system's wiring.