Yamaha 2005 BT1100 Supplementary Service Manual page 96

EAS00786
5. Pass switch
• Check the pass switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the pass switch OK?
YES
6. Dimmer switch relay
• Disconnect the dimmer switch relay from the
coupler.
• Connect the pocket tester (
tery (12V) to the dimmer switch relay coupler.
Battery positive terminal
Battery negative terminal
Tester positive probe
Tester negative probe
2
RY 3
LB
RY
WB
4
1
• Does the dimmer switch relay have continuity
between Blue/Black and Red/Yellow?
YES
NO
The pass switch is
faulty. Replace the
right handlebar
switch.
1) and bat-
¡
White/Black 1
¡
Red/Yellow 2
¡
Blue/Black 3
¡
Red/Yellow 4
NO
Replace the dimmer
switch relay.
LIGHTING SYSTEM
7. Igniter unit
• Disconnect the igniter unit from the coupler
and connect a new one.
• Is the lighting system's OK ?
YES
Replace the igniter
unit.
EAS00787
8. Wiring
• Check the entire lighting system's wiring.
Refer to "CIRCUIT DIAGRAM".
• Is the lighting system's wiring properly con-
nected and without defects?
YES
Check the condition of
each of the lighting
system's circuits.
Refer to "CHECKING
THE LIGHTING SYS-
TEM".
EAS00788
CHECKING THE LIGHTING SYSTEM
1. The headlight and the high beam indicator
light fail to came on.
1. Headlight bulb and socket
• Check the headlight bulb and socket for con-
tinuity.
Refer to "CHECKING THE BULBS AND
BULB SOCKETS".
• Are the headlight bulb and socket OK?
YES
88
ELEC
NO
The igniter unit is OK.
NO
Properly connect or
repair the lighting sys-
tem's wiring.
NO
Replace the head-
light bulb, socket or
both.