Service manual

ELEC
COOLING SYSTEM
8-43
6. Thermo sensor
9
Remove the thermo sensor from the cylinder.
9
Connect the digital circuit tester (
Ω⋅
100) to
the thermo switch
1
as shown.
9
Immerse the thermo sensor in a container
filled with coolant
2
.
NOTE:
Make sure that the thermo sensor terminals
do not get wet.
9
Place a thermometer
3
in the coolant.
9
Slowly heat the coolant, then let it cool to the
specified temperature as indicated in the
table.
9
Check the thermo sensor for continuity at the
temperatures indicated in the table.
w
99
Handle the thermo sensor with special
care.
99
Never subject the thermo sensor to
strong shocks. If the thermo sensor is
dropped, replace it.
9
Does the thermo sensor operate properly as
described above?
1
3
2
YES NO
Replace the
thermo sensor.
Tighten the thermo
sensor to specified
torque.
EAS00795
7. Wiring
9
Check the entire signaling system wiring.
Refer to “CIRCUITDIAGRAM”.
9
Is the signaling system wiring properly con-
nected and without defects?
YES NO
Properly connect or
repair the cooling
system wiring.
Check the condi-
tion of each of the
cooling system cir-
cuits.
Refer to “CHECK-
ING THE COOL-
ING SYSTEM”.
Thermo sensor resistance
2.32–2.59 k
Ω
at 20° C (68° F)
310–326
Ω
at 80° C (176° F)
140–144
Ω
at 110° C (230° F)
18 Nm
(1.8 m•kg, 13 ft•lb)
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