Yamaha FZS1000N, Service Manual

Page: 360 / 394

8-37
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”.
Properly connect or
repair the signaling
system’s wiring.
EAS00796
CHECKING THE SIGNAL SYSTEM
1. The horn fails to sound.
1. Horn switch
S
Check the horn switch for continuity.
Refer to “CHECKING THE SWITCHES”.
Replace the left han-
dlebar switch.
Check the condition
of each of the signal-
ing system’s circuits.
Refer to “CHECK-
ING THE SIGNAL-
ING SYSTEM”.
EAS00795
2. Voltage
S
Connect the pocket tester (DC 20 V) to the
horn connector at the horn terminal as
shown.
S
Is the signaling system’s wiring properly
connected and without defects?
S
Is the horn switch OK?
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.
Minimum open-circuit voltage
12.8 V or more at 20
_
C (68
_
F)
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) Seat
2) Fuel tank
3) Front cowling
4) Side cover
S
Troubleshoot with the following special tool(s).
Pocket tester measurement
YU-03112-C