Troubleshooting - Yamaha YJ125S 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. mainfuse
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
2. Front turn signal light bracket
3. Leg shield 1
4. Rear carrier
5. Side cover (right )
6. Cover
7. Battery cover
8 Troubleshoot with the following special
tool(s).
Pocket tester
90890-03132 (YU-03112-C)
EAS00738
1. Main fuse
8Check the main fuse for continuity.
Refer to "CHECKING THE FUSES" in
chapter 3.
8Is the fuse OK?
YES NO
Replace the fuse.
SIGNALING SYSTEM
EAS00739
2. Battery
8Check 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
8Is the battery OK?
YES
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3. Main switch
8Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
8Is the main switch OK?
YES
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4. Wiring
8Check the entire signal system's wiring.
Refer to "CIRCUIT DIAGRAM".
8Is 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".
7-34
- +
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.