Yamaha XN125 2000 Service Manual page 232

• Meter light coupler (wire harness side)
• Set the main switch to "ON".
• Set the light switch to "
• Set the dimmer switch to "
• Measure the voltage (12 V) of green on the
headlight coupler (wire harness side).
• Is the voltage within specification?
NO
The wiring circuit from
the main switch to the
headlight coupler is
faulty and must be
repaired.
".
" or " ".
YES
This circuit is OK.
LIGHTING SYSTEM
EAS00789
2. The meter light fails to come on.
1. Meter light bulb and socket
• Check the meter light bulb and socket for
continuity.
• Are the meter light bulb and socket OK?
2. Voltage
• Connect the pocket tester (20 V) to the meter
light coupler (wire harness side) as shown.
Positive tester probe → blue
Negative tester probe → black
Br
• Set the main switch to "ON".
• Set the light switch to "
• Measure the voltage (12 V) of blue
meter light coupler (wire harness side).
• Is the voltage within specification?
The wiring circuit from
the main switch to the
meter light coupler is
faulty and must be
repaired.
8-25
ELEC
YES
Replace the meter
light bulb, socket or
both.
METER
ASSY.
Y
Dg
Ch
R L B B G
Dg Y
Ch GR Br P Sb
" or " ".
NO
This circuit is OK.
NO
on the
YES