ELECTRICAL COMPONENTS
8-69
a. Connect the digital circuit tester () to the
resistor as shown.
b. Measure the resistance of the resistor.
EAM30302
CHECKING THE RADIATOR FAN MOTOR
1. Check:
• Radiator fan motor
Faulty/rough movement Replace.
a. Disconnect the radiator fan motor coupler
from the wire harness.
b. Connect the battery (DC 12 V) as shown.
c. Measure the radiator fan motor move-
ment.
EAM30303
CHECKING THE COOLANT TEMPERATURE
SENSOR
1. Remove:
• Coolant temperature sensor
EWA14130
• Handle the coolant temperature sensor
with special care.
• Never subject the coolant temperature sen-
sor to strong shocks. If the coolant temper-
ature sensor is dropped, replace it.
2. Check:
• Coolant temperature sensor resistance
Out of specification Replace.
a. Connect the digital circuit tester () to the
coolant temperature sensor.
b. Immerse the coolant temperature sensor
in a container filled with coolant.
Make sure the coolant temperature sensor ter-
minals do not get wet.
c. Place a thermometer in the coolant.
Resistor resistance
64.6–71.4
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with tachom-
eter
YU-A1927
• Positive tester probe
Black “1”
• Negative tester probe
Black “2”
• Positive battery terminal
Blue “1”
• Negative battery terminal
Black “2”
Coolant temperature sensor re-
sistance
2513–2777 at 20 C (2513–
2777 at 68 F)
Coolant temperature sensor re-
sistance
210–221 at 100 C (210–221
at 212 F)
Digital circuit tester (CD732)
90890-03243
Model 88 Multimeter with tachom-
eter
YU-A1927
• Positive tester probe
Green/White “1”
• Negative tester probe
Black/Blue “2”
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