ELECTRICAL COMPONENTS
8-128
e. Check the coolant temperature sensor for
continuity at the temperatures indicated in
the table.
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EAS28300
CHECKING THE THROTTLE POSITION
SENSOR
1. Remove:
• Throttle position sensor
(from the throttle body)
2. Check:
• 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 maxi-
mum resistance.
Out of specification → Replace the throttle
position sensor.
c. Connect the pocket tester (Ω × 1k) to the
throttle position sensor as shown.
d. While slowly turning the throttle position
sensor shaft, check that the throttle posi-
tion sensor resistance is within the speci-
fied range.
The resistance does not change or it
changes abruptly → Replace the throttle
position sensor.
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3. Install:
• Throttle position sensor
NOTE:
When installing the throttle position sensor,
adjust its angle properly. Refer to "ADJUST-
ING THE THROTTLE POSITION SENSOR"
on page 7-6.
EAS28350
CHECKING THE FUEL PUMP
WARNING
EWA13850
Gasoline is extremely flammable and under
certain circumstances there can be a dan-
ger of an explosion or fire. Be extremely
careful and note the following points:
• Stop the engine before refueling.
• Do not smoke, and keep away from open
flames, sparks, or any other source of
fire.
• If you do accidentally spill gasoline, wipe
it up immediately with dry rags.
• If gasoline touches the engine when it is
hot, a fire may occur. Therefore, make
sure the engine is completely cool before
performing the following test.
1. Disconnect:
• Fuel pump coupler
(from the wire harness)
2. Check:
• Fuel pump resistance
Out of specification → Replace.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Tester positive lead →
Blue “1”
• Tester negative lead →
Black/Blue “2”
Resistance
4.0–6.0 kΩ
• Tester positive lead →
Ye ll ow “3 ”
• Tester negative lead →
Black/Blue “2”
Throttle position sensor resis-
tance
0 to 3.5–6.5 kΩ at 20°C (68°F)