Yamaha 2012 TMAX XP500A Service Manual page 396

EAS27290
TROUBLESHOOTING
• Any of the following fail to light: turn signal light, brake light or an indicator light.
• The horn fails to sound.
• The fuel meter fails to operate.
• The speedometer fails to operate.
TIP
• Before troubleshooting, remove the following part(s):
1. Front cowling assembly
2. Storage box
1. Check the fuses.
(Main, ignition, signaling system,
ABS ECU, parking lighting and
backup)
Refer to "CHECKING THE FUSES"
on page 8-127.
OK↓
2. Check the battery.
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 8-127.
OK↓
3. Check the main switch.
Refer to "CHECKING THE
SWITCHES" on page 8-123.
OK↓
4. Check the entire signaling system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-19.
OK↓
This circuit is OK.
Checking the signaling system
The horn fails to sound.
1. Check the horn switch.
Refer to "CHECKING THE
SWITCHES" on page 8-123.
OK↓
2. Check the horn.
Refer to "CHECKING THE HORN"
on page 8-137.
OK↓
SIGNALING SYSTEM
NG→
Replace the fuse(s).
NG→
• Clean the battery terminals.
• Recharge or replace the battery.
NG→
Replace the main switch/immobilizer
unit.
NG→
Properly connect or repair the signal-
ing system's wiring.
NG→
The horn switch is faulty. Replace the
left handlebar switch.
NG→
Replace the horn.
8-21