Troubleshooting - Yamaha XV1600A1999 Service Manual

EB806010

TROUBLESHOOTING

S Any of the following fail to light: turn sig-
nal light, brake light or an indicator light.
S The horn fails to sound.
Check:
1. main, signaling system and backup fuses
2. battery
3. main switch
4. wiring
(of the entire signaling system)
NOTE:
S Before troubleshooting, remove the follow-
ing part(-s):
1) rider seats
2) fuel tank
3) side covers
4) headlight lens unit
S Troubleshoot with the following special
tool(-s).
Pocket tester
90890-03112
EB802400
1. Main, signaling system and backup fuses
S Check the main and signaling system fuses
for continuity.
Refer to "CHECKING AND CHARGING
THE FUSES" in chapter 3.
S Are the main, signaling system and backup
fuses OK?
YES
SIGNALING SYSTEM
NO
Replace the fuse(-s).
EB802401
2. Battery
S Check the condition of the battery.
Refer to "CHECKING THE BATTERY" in
chapter 3.
Open-circuit voltage
12.8 V or more at 20_C
S Is the battery OK?
YES
EB802411
3. Main switch
S Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
S Is the main switch OK?
YES
EB806400
4. Wiring
S Check the entire signaling system's wiring.
Refer to "CIRCUIT DIAGRAM".
S 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 "CHECK-
ING THE SIGNAL-
ING SYSTEM".
7-38
ELEC
NO
S Clean the battery
terminals.
S Recharge
or re-
place the battery.
NO
Replace the main
switch.
NO
Properly connect or
repair the signaling
system's wiring.
E