Checking The Lighting System - Yamaha VMX12 2001 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 connections
• 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 "CHECK-
ING THE LIGHTING
SYSTEM".
NO
• The dimmer switch
is faulty.
• Replace the left
handlebar switch.
NO
• The pass switch is
faulty.
• Replace the left
handlebar switch.
NO
Properly connect or
repair the lighting
system's wiring.
LIGHTING SYSTEM
EAS00788

CHECKING THE LIGHTING SYSTEM

1. The headlight and the high beam indicator
light fail to come on.
1. Headlight bulb and socket
• Check the headlight bulb and socket for
continuity.
Refer to "CHECKING THE BULBS AND
BULB SOCKETS".
• Is the headlight bulb and socket OK?
2. High beam indicator light bulb and socket
• Check the high beam indicator light bulb
and socket for continuity.
Refer to "CHECKING THE BULBS AND
BULB SOCKETS".
• Is the high beam indicator light bulb and
socket OK?
3. Voltage
• Connect the pocket tester (DC 20 V) to the
headlight and high beam indicator light cou-
plers as shown.
È When the dimmer switch is set to "
É When the dimmer switch is set to "
Headlight coupler (wire harness side)
8 - 31
ELEC
YES
Replace the head-
light bulb, socket or
both.
YES
Replace
beam indicator light
bulb, socket or both.
– +
NO
NO
the high
"
"