Yamaha Tracer MT09TRAH 2017 Service Manual page 543

Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with tachom-
eter
YU-A1927
• Positive tester probe 
Air induction system solenoid terminal "1"
• Negative tester probe 
Air induction system solenoid terminal "2"
2
c. Measure the air induction system solenoid re-
sistance.
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EAS30593
CHECKING THE INTAKE AIR PRESSURE
SENSOR
1. Check:
• Intake air pressure sensor output voltage
Out of specification  Replace.
Intake air pressure sensor output
voltage
3.57–3.71 V at 101.3 kPa
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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.
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).
1
8-172
ELECTRICAL COMPONENTS
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with tachom-
eter
YU-A1927
Test harness S– pressure sensor
(3P)
90890-03207
Test harness S– pressure sensor
(3P)
YU-03207
• Positive tester probe
pink (wire harness color) (intake air pressure
sensor 1)
pink/white (wire harness color) (intake air pres-
sure sensor 2)
• Negative tester probe
black/blue (wire harness color)
1
1
A. Intake air pressure sensor 1
B. Intake air pressure sensor 2
c. Set the main switch to "ON".
d. Measure the intake air pressure sensor out-
put voltage.
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EAS30594
CHECKING THE INTAKE AIR
TEMPERATURE SENSOR
1. Remove:
• Intake air temperature sensor
EWA14110
WARNING
• Handle the intake air temperature sensor