Yamaha XVZ13TF 1999, Service Manual

Page: 430 / 501

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EAS00749
3. Main switch
S
Check the main switch for continuity.
Refer to “CHECKING THE SWITCHES”.
S
Is the main switch OK?
YES NO
Replace the main
switch.
YES NO
YES NO
4. Wiring
S
Check the entire signal system’s wiring.
Refer to “CIRCUIT DIAGRAM”.
S
Is the signaling system’s wiring properly
connected and without defects?
Properly connect or
repair the signal sys-
tem’s wiring.
EAS00796
CHECKING THE SIGNAL SYSTEM
1. The horn fails to sound.
1. Horn switch
Refer to “CHECKING THE SWITCHES”.
Replace the left han-
dlebar switch.
Check the condition
of each of the signal
system’s circuits.
Refer to “CHECK-
ING THE SIGNAL-
ING SYSTEM”.
EAS00795
2. Voltage
S
Connect the pocket tester (20 V DC) to the
horn lead (at the horn terminal) as shown.
SIGNAL SYSTEM
ELEC
NOTE:
EAS00738
1. Main, signal and ignition fuses
S
Check the main, signal and ignition fuses for
continuity.
Refer to “CHECKING THE FUSES” in
CHAPTER 3.
S
Are the main, signal and ignition fuses OK?
YES NO
Replace the fuse (-s).
EAS00739
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 NO
S
Clean the battery
terminals.
S
Recharge or re-
place the battery.
EAS00794
TROUBLESHOOTING
S
Any of the following fail to come on: turn
signal light, brake light or indicator light.
S
The horn fails to sound.
Check:
1. Main, signal and ignition fuses
2. Battery
3. Main switch
4. Wiring connections
(of the entire signal system)
S
Before troubleshooting, remove the following
part(-s):
1) Rider seat
2) Side covers (left and right)
3) Fuel tank
4) Front upper cowling
S
Troubleshoot with the following special tool(-s).
Pocket tester
YU-03112, 90890-03112