Yamaha YW125Y_ Utility Trailer User Manual


 
7-36
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ELEC
EAS00794
TROUBLESHOOTING
88
88
8 Any of the following fail to light: turn sig-
nal light, brake light or an indicator light.
88
88
8 The horn fails to sound.
Check:
1. main and signaling fuses
2. battery
3. main switch
4. wiring connections
(of the entire signaling system)
TIP
8 Before troubleshooting, remove the follow-
ing part(s):
1. battery box cover
2. front cover
3. leg shield 1
8 Troubleshoot with the following special
tool(s).
Pocket tester
90890-03112 (YU-03112-C)
EAS00795
4. Wiring
8 Check the entire signal system’s wiring.
Refer to “CIRCUIT DIAGRAM”.
8 Is the signal system’s wiring properly con-
nected and without defects?
YES NO
Properly connect or
repair the signaling
system’s wiring.
Check the condition of
each of the signaling
system’s circuits.
Refer to “CHECKING
THE SIGNALING
SYSTEM”.
SIGNALING SYSTEM
EAS00738
1.Main and signaling fuses
8 Check the main and signaling fuses for con-
tinuity.
Refer to “CHECKING THE FUSES” in chap-
ter 3.
8 Are the main and signaling fuses OK?
YES NO
EAS00739
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 (68°F)
8 Is the battery OK?
YES NO
8 Clean the battery
terminals.
8 Recharge or re-
place the battery.
EAS00749
3. Main switch
8 Check the main switch for continuity.
Refer to “CHECKING THE SWITCHES”.
8 Is the main switch OK?
YES NO
Replace the main
switch.
Replace the fuse(s).
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