Yamaha YZF-R1B 2012 Service Manual page 542

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
• Positive tester probe
Orange "1"
• Negative tester probe
Green "2"
c. Measure the air induction system solenoid
resistance.
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EAS28380
CHECKING THE ATMOSPHERIC PRES-
SURE SENSOR
1. Check:
• Atmospheric pressure sensor output volt-
age
Out of specification → Replace.
Atmospheric pressure sensor
output voltage
3.57–3.71 V at 101.32 kPa
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a. Connect the test harness S-pressure sen-
sor (3P) "1" to the atmospheric pressure
sensor 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).
Digital circuit tester
90890-03174
Model 88 Multimeter with
tachometer
YU-A1927
Test harness S-pressure sensor
(3P)
90890-03207
YU-03207
email: info@motomatrix.co.uk
ELECTRICAL COMPONENTS
• Positive tester probe
Pink (wire harness color)
• Negative tester probe
Black/blue (wire harness color)
c. Turn the main switch to "ON".
d. Measure the atmospheric pressure sensor
output voltage.
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EAS28390
CHECKING THE CYLINDER IDENTIFICA-
TION SENSOR
1. Remove:
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
• Air filter case
Refer to "AIR FILTER CASE" on page 7-
5.
• Air filter case duct
Refer to "AIR INDUCTION SYSTEM" on
page 7-21.
2. Check:
• Cylinder identification sensor output volt-
age
Out of specification → Replace.
Cylinder identification sensor
output voltage (ON)
More than 4.8 V
Cylinder identification sensor
output voltage (OFF)
Less than 0.8 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).
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