Yamaha FJR1300A(D) Service Manual page 473

Checking the signaling system
The horn fails to sound.
1. Check the horn switch.
Refer to "CHECKING THE
SWITCHES" on page 8-169.
OK ↓
2. Check the entire signaling system
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-21.
OK ↓
Replace the horn.
The tail/brake light fails to come on.
1. Check the tail/brake light bulbs and
sockets.
Refer to "CHECKING THE BULBS
AND BULB SOCKETS" on page
8-172.
OK ↓
2. Check the front brake light switch.
Refer to "CHECKING THE
SWITCHES" on page 8-169.
OK ↓
3. Check the rear brake light switch.
Refer to "CHECKING THE
SWITCHES" on page 8-169.
OK ↓
4. Check the brake switch relay.
Refer to "CHECKING THE RE-
LAYS" on page 8-177.
OK ↓
5. Check the brake light relay.
Refer to "CHECKING THE RE-
LAYS" on page 8-177.
OK ↓
6. Check the entire signaling system
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-21.
OK ↓
This circuit is OK.
NG →
• The horn switch is faulty.
• Replace the left handlebar switch.
NG →
Properly connect or replace the wire har-
ness.
NG →
Replace the tail/brake light bulb, socket or
both.
NG →
Replace the front brake light switch.
NG →
Replace the rear brake light switch.
NG →
Replace the brake switch relay.
NG →
Replace the brake light relay.
NG →
Properly connect or replace the wire har-
ness.
8-24
SIGNALING SYSTEM