Yamaha FJR1300N 2001 Service Manual page 557

EAS00797
2. The tail/brake light fails to come on.
1. Tail/brake light bulb and socket
• Check the tail/brake light bulb and socket
for continuity.
• Are the tail/brake light bulb and socket OK?
YES
2. Brake light switches
• Check the brake light switches for continu-
ity.
Refer to "CHECKING THE SWITCHES".
• Is the brake light switch OK?
YES
NO
Replace the tail/
brake light bulb,
socket or both.
NO
Replace the brake
light switch.
SIGNALING SYSTEM
3. Voltage
• Connect the pocket tester (DC 20 V) to the
tail light assembly coupler (wire harness
side) as shown.
Tester positive probe → yellow 1
Tester negative probe → black 2
• Set the main switch to "ON".
• Pull in the brake lever or push down on the
brake pedal.
• Measure the voltage (12 V) of yellow 1 on
the tail light assembly coupler (wire harness
side).
• Is the voltage within specification?
This circuit is OK.
8 - 41
ELEC
L/R B
B L
Y
Y
Dg Ch
Ch Dg
YES
The wiring circuit
from the main switch
to the tail light
assembly coupler is
faulty and must be
repaired.
– +
NO