Third type of air sensor?

2017 HONDA CIVIC
56,000 MILES • 1.5L • TURBO • AUTOMATIC
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AZDANNO04
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Apparently, behind the glove box. There’s a sensor near the AC condenser is located? What’s happening with the car is the AC is blowing cold then randomly it will start blowing warm air. Thought it was low on freon? Topped that off. Check with the gauge it came with no loss of pressure but no gain of pressure if anything from what I remember it was at 35 in the green zone on the gauge. Check fuses. Figured it had to be a sensor. Changed the outside and ordered the inside below the start button. Then hearing that there’s another sensor for the AC. Figured I ask you guys about it. The how to and steps for that sensor behind the glove box.
Aug 5, 2026 at 2:01 PM
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STRAILER
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there are several temperature sensors used by the HVAC system, including the outside ambient sensor and the in-car (cabin) temperature sensor behind the dash. Can I ask when the air stops working are you at a stop light? Also, when the AC and engine or running can you hear the radiator fan working? Here is a great video to help us get started.

https://www.youtube.com/watch?v=4UjfQKvrB6Y

Let me know what you find.
Aug 6, 2026 at 6:45 PM
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AZDANNO04
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The car is at a stop light but majority the vehicle is in motion. I mentioned that to him (my neighbor) about the rpms to be more 1500 to have the AC engage. Since he has the turbo he’s not one to drive the speed limit he’s usually over 10-15 under the hood is pretty damn spotless and he parks inside his garage that has pioneer AC on the wall keeps it 80 degrees also because he has another refrigerator in the garage.
Aug 6, 2026 at 9:08 PM
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AZDANNO04
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Won’t hurt to try the process of elimination. Just need the steps to get the sensor behind the glove box, thank you thank you.
Aug 7, 2026 at 10:27 AM
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STRAILER
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Sure, you can give it a shot, here is the cabin temperature sensor which is easy to replace, but the evaporator temperature sensor is another story. I would like to see the high and low side pressure while the system is running.
Aug 7, 2026 at 10:57 AM
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