Checking The Lighting System - Yamaha BT1100 2002 Service Manual

EAS00784
5. Dimmer switch
• Check the dimmer switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the dimmer switch OK?
YES
EAS00786
6. Pass switch
• Check the pass switch for continuity.
Refer to "CHECKING THE SWITCHES".
• Is the pass switch OK?
YES
EAS00787
7. 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".
NO
The dimmer switch
is faulty. Replace the
right handlebar
switch.
NO
The pass switch is
faulty. Replace the
right handlebar
switch.
NO
Properly connect or
repair the lighting sys-
tem's wiring.
LIGHTING SYSTEM
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
2. Voltage
• Connect the pocket tester (DC 20 V) to the
headlight and high beam indicator light cou-
plers as shown.
å When the dimmer switch is set to "
∫ When the dimmer switch is set to " 1"
Headlight
Tester positive probe
Green 2
Tester negative probe
High beam indicator light
Tester positive probe
Tester negative probe
Headlight coupler (wire harness side)
• Set the main switch to "ON".
• Set the light switch to "6".
• Set the dimmer switch to "
7-30
ELEC
NO
Replace the head-
light bulb, socket or
both.
2
"
Yellow 1 or
Black 3
Yellow 4
Black 5
2
"or "1".