The overhead temperature sensor and its operation are critical to the “automatic” features of the climate control system. If you want the heat to hold steady inside the car, the sensor or sensors must be functioning properly. This includes the sensor itself and the little fan motor than draws cabin air over it. Yes, that is correct - there is a little electric fan motor that assists in giving the sensor accurate readings of the cabin air temperature.
In this video Kent will walk you through taking the circuit board out of the panel, inspecting and testing it for possible repair or replacement.
Details covered are:
- Function of the overhead circuit board
- Wiring plugs connected to it
- Having diagnostics run
- Results of a system scan
- Removing the back cover
- Removing the board
- Inspecting the sensor and its attachment wires
- Repairing broken sensor wires
- Inspecting and cleaning the aspirator fan motor
- Testing the aspirator fan
- Options for repair if the motor will not run
- Prevention measures
Please note: This is not an advanced computer diagnostics video. It is geared for the beginner DIY mechanic and Kent’s primary aim is to eliminate some of the “fear” related to working on your cars computer systems. This will be a good example how a little preventative inspection and maintenance could save you hundreds of dollars.
DOES NOT COVER: This video does not cover the actual removal of the overheat console from the head liner. Kent briefly covers the simple procedure after the fact and explains there are numerous videos on youtube on how to “pop” this down. Other than the temperature sensor no other functions of components of the circuit board are covered here.
TOTAL RUN TIME: 12:45
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