Yamaha Vmax VMX17C 2009 - Checking the Accelerator Position Sensor; Checking the Air Induction System Solenoid; Checking the Atmospheric Pressure Sensor

ELECTRICAL COMPONENTS
8-138
EAS29100
CHECKING THE ACCELERATOR POSITION
SENSOR
1. Remove:
• Accelerator position sensor
(from the throttle body)
WARNING
EWA2S31017
• Handle the accelerator position sensor with
special care.
• Never subject the accelerator position sen-
sor to strong shocks. If the accelerator po-
sition sensor is dropped, replace it.
2. Check:
• Accelerator position sensor maximum resis-
tance
Out of specification → Replace the accelera-
tor position sensor.
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a. Connect the pocket tester (Ω × 1k) to the ac-
celerator position sensor terminals as shown.
b. Measure the accelerator position sensor
maximum resistance.
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3. Install:
• Accelerator position sensor
T
IP
When installing the accelerator position sensor,
adjust its angle properly. Refer to “ADJUSTING
THE ACCELERATOR POSITION SENSOR” on
page 7-17.
EAS28370
CHECKING THE AIR INDUCTION SYSTEM
SOLENOID
1. Check:
• Air induction system solenoid resistance
Out of specification → Replace.
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a. Disconnect the air induction system solenoid
coupler from the wire harness.
b. Connect the pocket tester (Ω × 1) to the air in-
duction system solenoid terminals as shown.
c. Measure the air induction system solenoid re-
sistance.
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EAS28380
CHECKING THE ATMOSPHERIC PRESSURE
SENSOR
WARNING
EWA2S31018
• Handle the atmospheric pressure sensor
with special care.
Resistance
1.2–2.8 kΩ
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
blue/green “1”
• Negative tester probe →
black/brown “2”
B L/G B/Br W
1
2
Solenoid resistance
20–23 Ω at 20 °C (68 °F)
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
red/white “1”
• Negative tester probe →
brown/red “2”
Br/RR/W
12