# Toyota Avalon Slow A/C Fan Speed

**URL:** <https://community.cartalk.com/t/toyota-avalon-slow-a-c-fan-speed/86168>\
**Category:** Maintenance/Repairs\
**Created:** [July 22, 2014, 5:14pm UTC](https://community.cartalk.com/t/toyota-avalon-slow-a-c-fan-speed/86168 "2014-07-22T17:14:38Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![UTEXER](https://avatars.discourse-cdn.com/v4/letter/u/3e96dc/32.png) [@UTEXER](https://community.cartalk.com/u/UTEXER)\
**Post date:** [July 22, 2014, 5:14pm UTC](https://community.cartalk.com/t/toyota-avalon-slow-a-c-fan-speed/86168/1 "2014-07-22T17:14:38Z")

</div>

My 2008 Avalon A/C fan speed periodically won’t run at the highest speed. When I take it off of “auto”, I can step up the fan speed and see the segments on the display light up with each increase in speed. Each segment lights up (they are in a oval shape) indicating that it should be at the highest speed, but it just doesn’t seem to blow as hard as it used to.

I think this fan motor is controlled by a PWM controller rather than resistors. Doesn’t anyone know if that is correct and where I could find the PWM controller? My thought was that if it was not too expensive I would change that out first.

If the fan works, could there be a problem with the fan motor?

---

<div class="post-metadata">

**Author:** ![insightful](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/insightful/32/2732_2.png) [@insightful](https://community.cartalk.com/u/insightful)\
**Post date:** [July 22, 2014, 8:28pm UTC](https://community.cartalk.com/t/toyota-avalon-slow-a-c-fan-speed/86168/2 "2014-07-22T20:28:05Z")

</div>

Changed cabin air filter lately?

---

<div class="post-metadata">

**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [July 22, 2014, 10:29pm UTC](https://community.cartalk.com/t/toyota-avalon-slow-a-c-fan-speed/86168/3 "2014-07-22T22:29:05Z")

</div>

You’re correct. The blower speeds aren’t controlled with resistors. The speeds are controlled thru the A/C Amplifier.

The A/C Amplifier is located under the passenger side dash mounted to the side of the blower housing.

Tester