Evaporator Temperature Sensor / Switch: Testing and Inspection

THERMOSTATIC SWITCH (THERMISTOR)

ON-VEHICLE INSPECTION




1. Open the glove box and remove the glove box latching mechanism after removing mounting screws.




2. Remove glove box mounting screws.




3. Remove the glove box.




4. Remove mounting screws of the glove box mounting plate.




5. Remove the glove box mounting plate.
6. Turn the blower and A/C switches ON.
7. Start the engine.
8. With the thermostatic switch connector in coupled 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.







9. If above condition is not satisfied, remove the evaporator unit and replace the thermostatic switch.
(Refer to the "Removal and disassembly of the evaporator unit").
10. After inspection, install all the removed parts. Installation is the reverse order of removal.