ELECTRICAL COMPONENTS
8-139
EAS30581
CHECKING THE THROTTLE POSITION
SENSOR
1. Remove:
• Throttle position sensor
(from the throttle body)
EWA16690
• Handle the throttle position sensor with
special care.
• Never subject the throttle position sensor
to strong shocks. If the throttle position
sensor is dropped, replace it.
2. Check:
• Throttle position sensor maximum resistance
Out of specification → Replace the throttle
position sensor.
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a. Connect the pocket tester (Ω × 1k) to the
throttle position sensor as shown.
b. Check the throttle position sensor maximum
resistance.
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3. Install:
• Throttle position sensor
When installing the throttle position sensor, ad-
just its angle properly. Refer to “ADJUSTING
THE THROTTLE POSITION SENSOR” on page
7-15.
EAS30593
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.
ECA20920
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) “a”.
Resistance
2.64–6.16 kΩ
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe
Sensor terminal “1”
• Negative tester probe
Sensor terminal “2”
Intake air pressure sensor output
voltage
4.200 V at 119.990 kPa
Digital circuit tester
90890-03174
Model 88 Multimeter with ta-
chometer
YU-A1927
Test harness S– pressure sensor
(3P)
90890-03207
Test harness S– pressure sensor
(3P)
YU-03207
• Positive tester probe
Pink/white (wire harness color)
• Negative tester probe
Black/blue (wire harness color)