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a
1
c. Turn the main switch to "ON".
d. Measure the atmospheric pressure sensor
output voltage.
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EAS1MC1025
CHECKING THE AIR TEMPERATURE
SENSOR
1. Remove:
• Air temperature sensor
(from the windshield drive unit)
EWA1MC1020
WARNING
• Handle the air temperature sensor with
special care.
• Never subject the air temperature sensor to
strong shocks. If the air temperature sen-
sor is dropped, replace it.
2. Check:
• Air temperature sensor resistance
Out of specification → Replace.
Air temperature sensor resis-
tance
5.4–6.6 kΩ at 0 °C (32.0 °F)
290–390 Ω at 80.0 °C (176.0 °F)
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a. Connect the pocket tester (Ω × 100/× 1 kΩ) to
the air temperature sensor terminals as
shown.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
b. Immerse the air temperature sensor "1" in a
container filled with water "2".
TIP
Make sure that the air temperature sensor termi-
nals do not get wet.
c. Place a thermometer "3" in the water.
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ELECTRICAL COMPONENTS
3
d. Heat the water or let it cool down to the spec-
ified temperatures.
e. Measure the air temperature sensor resis-
tance.
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EAS1MC1027
CHECKING THE FUEL INJECTORS
1. Check:
• Fuel injector resistance
Out of specification → Replace the fuel injec-
tor.
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a. Disconnect the fuel injector coupler from wire
harness.
b. Connect the pocket tester (Ω × 1) to the fuel
injector terminals as shown.
• Positive tester probe
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Injector terminal "1"
• Negative tester probe
Injector terminal "2"
c. Measure the fuel injector resistance.
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8-281
1
2
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Resistance
12.0 Ω
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Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
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Troubleshooting
