ELECTRICAL COMPONENTS
8-137
2. Check:
• Coolant temperature sensor resistance
Out of specification → Replace.
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a. Connect the pocket tester (Ω × 100) to the
coolant temperature sensor terminals as
shown.
b. Immerse the coolant temperature sensor “1”
in a container filled with coolant “2”.
IP
Make sure the coolant temperature sensor ter-
minals do not get wet.
c. Place a thermometer “3” in the coolant.
d. Slowly heat the coolant, and then let it cool
down to the specified temperature.
e. Measure the coolant temperature sensor re-
sistance.
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3. Install:
• Coolant temperature sensor
EAS28300
CHECKING THE THROTTLE POSITION
SENSOR
1. Remove:
• Throttle position sensor
(from the throttle body)
WARNING
EWA2S31016
• 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 terminals as shown.
b. Measure the throttle position sensor maxi-
mum resistance.
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3. Install:
• Throttle position sensor
IP
When installing the throttle position sensor, ad-
just its angle properly. Refer to “ADJUSTING
THE THROTTLE POSITION SENSOR” on page
7-16.
Coolant temperature sensor re-
sistance
2.45 kΩ at 20 °C (68 °F)
290.0–354.0 Ω at 80 °C (178 °F)
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
T
R
.
.
Coolant temperature sensor
18 Nm (1.8 m·kgf, 13 ft·lbf)
3
1
2
Resistance
1.2–2.8 kΩ
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe →
blue/green “1”
• Negative tester probe →
black/brown “2”
B
B/Br
L/G
W
2
1
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