Sensor?

[echarleswhyte]

So today I decided to take a look deep inside my dash via the removed cluster. Why I did I don't know, just for something to do. Anyway behind this "grate"

You will find this "sensor" thing. it has something plugged into it and you can see a white tube behind it.

that white tube continues behind the dash

end ends above the accelerator pedal.

Anyone know what this is and does???

 

[Donabed Kopoian]

My 2014 with the push-button start has the same thing. Maybe a sensor for the smart key? Dunno what the white tube is there for...

 

[Kev250R]

Based on the second pic I'm thinking it's some sort of temperature sensor, perhaps to tell the HVAC system what the temperature inside the car is (which would likely be more stable under the dash).

Either that or your cars came equipped with an on-board Breathalizer option :laughing:

Kevin

 

[echarleswhyte]

Temp sensor is what I thought as well. I have the auto A/C and I figured it takes a reading from down below and up above and the blended temp would indicate how cold the interior is. That would seem the best guess to me, was just wondering if anyone actually new.

 

[IFMJohn]

How many wires are attached to it?

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[Donabed Kopoian]

I have a sensor on top of the dashboard but I suppose, being close to the vent, that it could be a temperature for the floor air outlet.

 

[IFMJohn]

Is it a round dome? Normally those are optical light sensors used for automatic headlights.

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[Donabed Kopoian]

There are two round domes. Driver side is auto headlights sensor, passenger side is cabin air temperature sensor.

 

[Donabed Kopoian]

Unless you have a 2014 U.S. bound Corolla ... then the driver side is a blank instead of a dome

 

[echarleswhyte]

Did not get that deep but it looked like a simple two wire plug. And what is on top of the dash are light sensors for those that have auto lights.

 

[IFMJohn]

Two wire could be a temperature sensor

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