Yamaha XV16AL Service Manual page 422

EB806417
5. The fuel level indicator light, fuel level
meter or both fail to come on.
1.Fuel level indicator light LED
• Check the LED of the fuel level indicator
light.
Refer to "CHECKING THE BULBS AND
BULB SOCKETS".
• Is the fuel level indicator light LED OK?
YES
2.Fuel sender
• Disconnect the fuel sender coupler from
the wire harness.
• Drain the fuel from the fuel tank and
remove the fuel sender from the fuel
tank.
• Connect the pocket tester (Ω × 10) to the
fuel sender coupler.
Tester positive probe → green 1
Tester negative probe → black/blue 2
• Measure the fuel sender resistance.
Fuel sender resistance
Full position of the float Å
11 ~ 13 Ω at 20 ˚C (68 ˚F)
Empty position of the float ı
140 ~ 143 Ω at 20 ˚C (68 ˚F)
• Is the fuel sender OK?
YES
NO
Replace the meter
assembly.
NO
Replace the fuel
sender.
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SIGNALING SYSTEM
3.Voltage
• Connect the pocket tester (DC 20 V) to
the meter assembly coupler (wire har-
ness side) as shown.
Tester positive probe → brown 1
Tester negative probe → black 2
• Set the main switch to "ON".
• Measure the voltage (12 V).
• Is the voltage within specification?
YES
Replace the meter
assembly.
6. An engine trouble indicator light fails to
come on.
1.Engine trouble indicator LED
• Check the LED of the engine indicator
light.
Refer to "CHECKING THE BULBS AND
BULB SOCKETS".
YES
– +
ELEC
NO
The wiring circuit
from the main
switch to the meter
assembly coupler is
faulty and must be
repaired.
NO
Replace the meter
assembly.
7