• Positive tester probe
Black "1"
• Negative tester probe
Black "2"
b. Measure the resistance of the resister.
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CHECKING THE RADIATOR FAN MOTOR
EAS2GC1399
1. Check:
• Radiator fan motor
Faulty/rough movement Replace.
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a. Disconnect the radiator fan motor coupler
from the wire harness.
b. Connect the battery (DC 12 V) as shown.
• Positive battery terminal
Blue "1"
• Negative battery terminal
Black "2"
1
L
c. Measure the radiator fan motor movement.
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EAS2GC1400
CHECKING THE COOLANT TEMPERATURE
SENSOR
1. Remove:
• Coolant temperature sensor
EWA
WARNING
• Handle the coolant temperature sensor
with special care.
• Never subject the coolant temperature
sensor to strong shocks. If the coolant
temperature sensor is dropped, replace it.
1
2
2
B
12V
ELECTRICAL COMPONENTS
2. Check:
• Coolant temperature sensor resistance
Out of specification Replace.
Coolant temperature sensor re-
sistance
2512–2777 at 20 °C (2512–
2777 at 68 °F)
210–220 at 100 °C (210–220
at 212 °F)
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a. Connect the pocket tester ( 1k/100) to
the coolant temperature sensor.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe
Green/White "1"
• Negative tester probe
Black/Blue "2"
b. Immerse the coolant temperature sensor in
a container filled with coolant.
TIP
Make sure the coolant temperature sensor ter-
minals do not get wet.
c. Place a thermometer in the coolant.
d. Slowly heat the coolant, and then let it cool
to the specified temperature indicated in the
table.
e. Check the coolant temperature sensor for
continuity at the temperatures indicated in
the table.
9-78
G/W
B/L
G/W
B/L
1
2