Yamaha FJR1300A(D) - Page 638

ELECTRICAL COMPONENTS
8-189
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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EAS28390
CHECKING THE CYLINDER
IDENTIFICATION SENSOR
1. Check:
• Cylinder identification sensor output voltage
Out of specification → Replace.
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a. Connect the test harness-speed sensor (3P)
“1” to the cylinder identification sensor cou-
pler and wire harness as shown.
b. Connect the pocket tester (DC 20 V) to the
test harness-speed sensor (3P).
c. Turn the main switch to “ON”.
d. Rotate the crankshaft.
e. Measure the voltage of white/black and
black/blue. Turn the crankshaft twice and
check that the output voltage rises to approx-
imately 4.8 V once.
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EAS1MC1028
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 sensor
(3P) “1” to the intake air pressure sensor and
wire harness as shown.
Solenoid resistance
20–24 Ω
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
Air induction system solenoid terminal “1”
• Negative tester probe →
Air induction system solenoid terminal “2”
Cylinder identification sensor
output voltage (ON)
More than 4.8 V
Cylinder identification sensor
output voltage (OFF)
Less than 0.8 V
1
2
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 output
voltage
3.57–3.71 V
1