Thermostatic Switch (Thermistor)

Thermostatic Switch (Thermistor)
Inspection
1. Remove the glove box assembly.
2. Turn the blower and A/C switches ON.
3. Start the engine.

Thermostatic Switch Operating Characteristics Part 1:

Thermostatic Switch Operating Characteristics Part 2:

4. With the thermostatic switch connector in couple state, install a voltmeter between 2 and 3 (-) terminal and check whether there is change in voltage between terminals according to the temperature of the evaporator surface.

Note: This check should be carried out on the back probes of the thermostatic switch when it is in coupled state. If above condition is not satisfied, remove the evaporator unit and replace the thermostatic switch.