ELECTRICAL COMPONENTS
8-146
c. Turn the main switch to “ON”.
d. Rotate the crankshaft.
e. Measure the voltage. With each full rotation
of the crankshaft, the voltage reading
should cycle from 0.8 V to 4.8 V to 0.8 V to
4.8 V.
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EAS28410
CHECKING THE INTAKE AIR PRESSURE
SENSOR
1. Check:
• Intake air pressure sensor output voltage
Out of specification → Replace.
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a. Connect the test harness S-pressure sen-
sor (3P) “1” to the intake air pressure sen-
sor and wire harness as shown.
ECA14B1035
Pay attention to the installing direction of
the test harness S-pressure sensor (3P)
coupler “a”.
b. Connect the digital circuit tester (DCV) to
the test harness S-pressure sensor (3P).
c. Turn the main switch to “ON”.
d. Measure the intake air pressure sensor
output voltage.
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EAS28420
CHECKING THE INTAKE AIR TEMPERA-
TURE SENSOR
1. Remove:
• Intake air temperature sensor
(from the headlight assembly.)
EWA14110
• Handle the intake air temperature sensor
with special care.
• Never subject the intake air temperature
sensor to strong shocks. If the intake air
temperature sensor is dropped, replace it.
2. Check:
• Intake air temperature sensor resistance
Out of specification → Replace.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
Test harness-speed sensor (3P)
90890-03208
YU-03208
• Positive tester probe
White/Black (wire harness color)
• Negative tester probe
Black/Blue (wire harness color)
Intake air pressure sensor out-
put voltage
3.57–3.71 V at 101.32 kPa
Digital circuit tester
90890-03174
Model 88 Multimeter with
tachometer
YU-A1927
Test harness S-pressure sensor
(3P)
90890-03207
YU-03207
• Positive tester probe
Pink/White (wire harness color)
• Negative tester probe
Black/Blue (wire harness color)
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