9 - 49
–
+
ELEC
COOLING SYSTEM
EBS00812
YES
NO
EBS01090
YES
NO
7. Coolant temperature sensor
• Remove the coolant temperature sensor
from the cylinder head.
• Connect the pocket tester (
Ω
×
100) to the
coolant temperature sensor
1
as shown.
• Immerse the coolant temperature sensor
in a container filled with coolant
2
.
TIP:
_
Make sure the coolant temperature sensor
terminals do not get wet.
• Place a thermometer
3
in the coolant.
• Slowly heat the coolant, and then let it cool
to the specified temperature indicated in
the table.
• Measure the coolant temperature sensor
resistance.
Coolant temperature sensor
resistance
290 ~ 354
Ω
at 80 °C (176 °F)
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.
T
R
.
.
Coolant temperature sensor
18 Nm (1.8 m · kg, 13 ft · lb)
• Does the coolant temperature sensor
operate properly?
Replace the coolant
temperature sensor.
8. Wiring
• Check the entire cooling system wiring.
Refer to “CIRCUIT DIAGRAM”.
• Is the cooling system wiring properly con-
nected and without defects?
Replace the ECU.
Properly connect or
repair the cooling
system wiring.
