Troubleshooting - Yamaha XP500 2002 Supplementary Service Manual

EAS00794

TROUBLESHOOTING

S Any of the following fail to come on: turn
signal light, brake light, hazard or indica-
tor 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)
NOTE:
S Before troubleshooting, remove the following
part(-s):
1) Front cowling
2) Handlebar cover
S Troubleshoot with the following special tool(-s).
Pocket tester
90890-03112
EAS00738
1. Main, signal, hazard and ignition fuses
S Check the main, signal, hazard and ignition
fuses for continuity.
Refer to "CHECKING THE FUSES" in
CHAPTER 3. (Manual No.: 5GJ1-AE1)
S Are the main, signal, hazard and ignition
fuses OK?
YES NO
Replace the fuse (-s).
–30–
SIGNAL SYSTEM
EAS00739
2. Battery
S Check the condition of the battery.
Refer to "CHECKING THE BATTERY" in
CHAPTER 3. (Manual No.: 5GJ1-AE1)
Open-circuit voltage
12.8 V or more at 20_C
S Is the battery OK?
YES
EAS00749
3. Main switch
S Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
S Is the main switch OK?
YES
EAS00795
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?
YES
Check the condition
of each of the signal
system's circuits.
Refer to "CHECKING
THE SIGNALING
SYSTEM".
ELEC
NO
S Clean the battery
terminals.
S Recharge or
replace the battery.
NO
Replace the main
switch.
NO
Properly connect or
repair the signal
system's wiring.