My interior dash A/C, hi/low knob turns but no longer changes the speed of the air flow. The other two knobs (direction of flow and temperature) work just fine. any help?
Possibly, but I would check and see if there is a blower motor resistor first, they cause the same problem. I don't know Toyota well, but do know about blower motor systems.
Yes, it does have a resistor. The next window will show a link that is ridiculously long but will show one of the many places to buy one
Generic information... not Corolla specific but informative http://www.samarins.com/glossary/blower-motor-resistor.html
I have been looking everywhere for Corolla specific installation instructions but no luck - This is Tacoma, should be same or very similar - https://www.tacomaworld.com/threads/replacement-of-hvac-blower-motor-resistor.8310/
Good morning Rowefast. It's really similar to most any car.
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