- Coolant temperature sensor
Warnings!
- 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.
2. Check:
- Coolant temperature sensor resistance
Out of specification → Replace.
Coolant temperature sensor resistance
- 0°C (32°F): 5.21-6.37 kΩ
- 80°C (176°F): 0.29-0.35 kΩ
a. Connect the pocket tester (Ωx1k) to the coolant temperature sensor «1» as shown.
Pocket tester: 90890-03112.
Analog pocket tester: YU-03112-C.
Positive tester probe: Coolant temperature sensor terminal.
Negative tester probe: Coolant temperature sensor terminal.
b. Immerse the coolant temperature sensor in a container filled with coolant «2».
Note: Make sure the coolant temperature sensor terminals do not get wet.
c. Place a thermometer «3» 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.