Temperature control knob not working

Tiny
BNOBLE
  • MEMBER
  • 2005 TOYOTA SEQUOIA
  • V8
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
The knob that controls temperature is no longer working. It is stuck at 81 degrees. All other A/C controls work. I assume A/C works but since the knob is stuck on heat. I'm not sure.
Wednesday, February 2nd, 2022 AT 4:41 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
More than likely you are going to have to replace the control assembly.

This was a component that was common to fail.

I am attaching the info that we need to confirm this.

Basically, to confirm this we need to check the voltage when you are turning the temperature knob going to the actuator.

https://www.2carpros.com/articles/how-to-check-wiring

However, if the display never changes then the issue is with the control assembly.

I am attaching the info below so please run through this and let me know what questions you have. Thanks
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Thursday, February 3rd, 2022 AT 3:30 PM

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