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SDN8300
SDN8310
8-18
SIGNAL SYSTEM
WATER TEMPERATURE SENSOR
1. Disconnect the water temperature sensor cou-
pler and remove the water temperature sen-
sor.
CAUTION:
Handle the water temperature sensor with spe-
cial care. Never subject it to shock or allow it to be
dropped. If it is dropped, it must be replaced.
2. Connect:
•
Pocket tester 1
(to the water temperature sensor)
NOTE:
Set the tester selector to the "Ω x 1" position.
3. Immerse the water temperature sensor 2 in
coolant 3 and check the water temperature
sensor operation.
Water temperature sensor resistance:
2.21 ~ 2.70 kΩ at 20°C (68°F)
1.03 ~ 1.26 kΩ at 40°C (104°F)
0.52 ~ 0.65 kΩ at 60°C (140°F)
0.29 ~ 0.35 kΩ at 80°C (176°F)
0.17 ~ 0.21 kΩ at 100°C (212°F)
4
Temperature gauge
CAUTION:
Never heat the coolant to a temperature of 120˚C
(248.5˚F) or more.
4. If the water temperature sensor operation is
defective, replace it.
5. Install the water temperature sensor and con-
nect the water temperature sensor lead.
Water temperature sensor:
23 Nm (2.3 m • kg, 17 ft • lb)
CAUTION:
Do not overtighten the water temperature sen-
sor.
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