Yamaha XVS1100(L) Service Manual page 325

2. Voltage
S Connect the pocket tester (DC 20 V) to the
tail/brake light coupler (wire harness side) as
shown.
Tester positive probe ! blue
Tester negative probe ! black
S Set the main switch to "ON"
S Set the light switch to "
S Measure the voltage (12 V) of blue/red
the tail/brake light coupler (wire harness
side).
S Is the voltage within specification?
YES
This circuit is OK.
EB05413
4. The auxiliary light fails to come on. (for Eu-
rope)
1. Auxiliary light bulb and socket
S Check the auxiliary light bulb and socket for
continuity.
Refer to "CHECKING THE BULBS AND
BULB SOCKETS".
S Are the auxiliary light bulb and socket OK?
YES
1
2
" or " ".
1 on
NO
The wiring circuit
from the main switch
to the tail/brake light
coupler is faulty and
must be repaired.
NO
Replace the auxiliary
light bulb, socket or
both.
LIGHTING SYSTEM
2. Voltage
S Connect the pocket tester (DC 20 V) to the
auxiliary light couplers (wire harness side) as
shown.
Tester positive probe ! blue/red
Tester negative probe ! black
S Set the main switch to "ON"
S Set the light switch to "
S Measure the voltage (12 V) of blue/red
the auxiliary light couplers (wire harness
side).
S Is the voltage within specification?
YES
This circuit is OK.
7-30
ELEC
1
2
" or " ".
on
1
NO
The wiring circuit
from the main switch
to the auxiliary light
connectors is faulty
and must be re-
paired.