Checking The Atmospheric Pressure Sensor; Checking The Cylinder Identification Sensor - Yamaha R1 Series 2015 Service Manual

• Positive tester probe
orange "1"
• Negative tester probe
green "2"
c. Measure the air induction system solenoid re-
sistance.
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EAS30588
CHECKING THE ATMOSPHERIC PRESSURE
SENSOR
1. Check:
• Atmospheric pressure sensor output voltage
Out of specification
Atmospheric pressure sensor
output voltage
3.57–3.71 V@101.3 kPa (3.57–
3.71 V@1.01 kgf/cm², 3.57–3.71
V@14.7 psi)
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a. Connect the test harness S– pressure sensor
(3P) "1" to the atmospheric pressure sensor
and wire harness as shown.
ECA20920
NOTICE
Pay attention to the installing direction of the
test harness S– pressure sensor (3P) cou-
pler.
b. Connect the digital circuit tester (DCV) to the
test harness S– pressure sensor (3P).
Digital circuit tester
90890-03174
Model 88 Multimeter with tachom-
eter
YU-A1927
Test harness S– pressure sensor
(3P)
90890-03207
Test harness S– pressure sensor
(3P)
YU-03207
O G
Replace.
ELECTRICAL COMPONENTS
• Positive tester probe
pink (wire harness color)
• Negative tester probe
black/blue (wire harness color)
c. Set the main switch to "ON".
d. Measure the atmospheric pressure sensor
output voltage.
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EAS30589
CHECKING THE CYLINDER
IDENTIFICATION SENSOR
1. Remove:
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
• Air filter case
Refer to "AIR FILTER CASE" on page 7-4.
• Air filter case duct
Air cut-off valve
Refer to "AIR INDUCTION SYSTEM" on
page 7-19.
2. Check:
• Cylinder identification sensor output voltage
Out of specification
Cylinder identification sensor
output voltage (ON)
0.8 V
Cylinder identification sensor
output voltage (OFF)
4.8 V
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a. Connect the test harness– speed sensor (3P)
"1" to the rear speed sensor coupler and wire
harness as shown.
b. Connect the pocket tester (DC 20 V) to the
test harness– speed sensor (3P).
8-193
1
Replace.