Yamaha XP500 Service Manual page 516

EAS00792
6. The storage box light fails to come on.
1. Storage box light bulb and socket
• Check the storage box light bulb and
socket for continuity.
Refer to "CHECKING THE BULBS AND
BULB SOCKETS".
• Are the storage box light bulb and socket
OK?
YES
2. Voltage
• Connect the pocket tester (DC 20 V) to the
storage box light connectors (wire harness
side) as shown.
Positive tester probe → blue/green 1
Negative tester probe → black 2
• Set the main switch to "ON".
• Measure the voltage (DC 12 V) of blue/
green 1 on the storage box light connec-
tor (wire harness side).
• Is the voltage within specification?
YES
This circuit is OK.
NO
Replace the storage
box light bulb, socket
or both.
NO
The wiring circuit
from the main switch
to the storage box
light connector is
faulty and must be
repaired.
LIGHTING SYSTEM
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ELEC