A/C not blowing on highest setting

2012 CHEVROLET TRAVERSE
107,000 MILES
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AROWLAND98
  • MEMBER
  • 2 POSTS
My A/C works just fine, but when I go inside the car and turn the knob to full blast it doesn’t blow on full blast. The car is on and there is nothing work with it other the A/C doesn’t blow on full blast.
May 7, 2021 at 3:19 PM
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ASEMASTER6371
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 52,796 POSTS
Good evening,

I attached a wiring diagram for the system. The high speed is controlled by the HVAC control module. It is under the right side of the dash by the blower motor. I attached a picture for you to view of the part.

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

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Roy
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May 7, 2021 at 3:33 PM
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