9 - 42
–
+
ELEC
YES
NO
7. The fuel meter fails to come on.
YES
NO
3. Voltage
• Connect the pocket tester (DC 20 V) to the
meter assembly coupler as shown.
Positive tester probe
→
brown/yellow
1
Negative tester probe
→
black/white
2
• Set the main switch to “ON”.
• Measure the voltage (12 V) of brown/yel-
low
1
and black/white
2
at the meter
assembly coupler.
• Is the voltage within specification?
Replace the meter
assembly or ECU.
The wiring circuit
from the main switch
to the meter assem-
bly coupler is faulty
and must be
repaired.
Y
/
L Br
/
Y B
/
W
Y
/
L Br
/
Y B
/
W
O
/
B
R
/
W
O
/
B
R
/
W
2
1
1. Fuel sender
• Drain the fuel from the fuel tank and then
remove the fuel pump assembly (fuel
sender) from the fuel tank.
• Connect the pocket tester (
Ω
×
10) to the
fuel pump terminals as shown.
Positive tester probe
→
orange/black
1
Negative tester probe
→
black/white
2
• Move the fuel sender float to the minimum
3
and maximum
4
level positions.
• Measure the fuel sender resistance.
Fuel sender resistance
Minimum
3
: 137.0 ~ 143.0
Ω
Maximum
4
: 19.0 ~ 21.0
Ω
• Is the fuel sender OK?
Replace the fuel
pump assembly.
1
2
4
3
B/W
O/B
SIGNALING SYSTEM
Содержание YXR70FX
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