Yamaha FZ6-N 2004, Service Manual

Page: 68 / 77

–60– 60
SIGNALING SYSTEM
ELEC
YES NO
1. Tail / brake light bulb and socket
S
Check the tail / brake light bulb and socket for
continuity.
Refer to “CHECKING THE BULBS AND
BULB SOCKETS”.
S
Are the tail / brake light bulb and socket OK?
Replace the tail /
brake light bulb,
socket or both.
EAS00797
2. The tail / brake light fails to come on.
YES NO
2. Brake light switches
S
Check the brake light switches for continuity.
Refer to “CHECKING THE SWITCHES”.
S
Is the brake light switch OK?
Replace the brake
light switch.
3. Voltage
S
Connect the pocket tester (DC 20 V) to the
tail / brake light coupler (wire harness side)
as shown.
Negative tester probe
!
black
Positive tester probe
!
yellow
1
2
S
Turn the main switch to “ON”.
S
Pull in the brake lever or push down on the
brake pedal.
S
Measure the voltage (DC 12 V) of yellow
on the tail / brake light coupler (wire harness
side).
S
Is the voltage within specification?
2
YES NO
2. Voltage
S
Connect the pocket tester (DC 20 V) to the
horn connector at the horn terminal as
shown.
The wiring circuit
from the main switch
to the horn connec-
tor is faulty and must
be repaired.
Negative tester probe
!
ground
Positive tester probe
!
pink
1
S
Turn the main switch to “ON”.
S
Push the horn switch.
S
Measure the voltage (DC 12 V) of pink at the
horn terminal.
S
Is the voltage within specification?
NO YES
3. Horn
S
Disconnect the black connector at the horn
terminal.
S
Connect a jumper lead to the horn termi-
nal and ground the jumper lead.
S
Turn the main switch to “ON”.
S
Push the horn switch.
S
Does the horn sound?
The horn is OK.
1
Replace the horn.