Blower Motor - Either Off or HIGH... nothing in between?

As the title says, tonight on the way home from work I made several quick stops: ATM - out of money, gas station, grocery store for a case of Yuengling and when I got back into my truck I noticed that my heater (or AC) would only work on HIGH. The settings are Off, Lo, Fan, Fan, High Fan. As you can imagine, Off works just fine. Low, Fan and Fan are all not working... then all of a sudden I switch to High fan and hot or cold air blows like crazy.

My truck hasn't quite hit 48,000 miles and I've had the blower motor TSB performed before my truck hit 36,000. My truck is 5.5 years old and out of warranty so I'm looking for an easy/cheap fix. Is there a fuse or a relay I can check? I could unplug the blower motor and plug it back in, but I'm not sure what that will do.

Any advice would be appreciated.

 

Sounds like you pooched the resistor. There is a tsb for replacing the connector if it's melted. So you can get a new connector if necessary. It's located just to the left of the blower motor towards the firewall.

 

^^^x2

 

X2...exactly what he said. Replace your resistor and you're off to the races!!! Pretty easy and common fix....Good luck

 

Anyone have a part number for me? I'll check things out today to see if I have a melted connector... it should be pretty easy to see/identify.
TIA.

 

Very old thread but my Taco has developed this problem. It happens randomly all the time. I had to say THANKS!!

 

This just happened to me today, does anybody have pictures or part number or anything to help me out, my truck is far out of warranty

 

Bump

 

My truck has developed the same symptoms. Fan only works on high. Smells like straw coming from the vents. Some critter must have started making a nest in the vents, while I was on vacation.

 

Found the nest above the cabin air filter. It was about 3 inches in height with grass and hair. Critters chewed through the filter as well. Now I need to find out if a fuse blew or something else was damaged. Sorry pics are not very clear.

 

Same thing happened to me! Replaced the resistor and everything was back to normal.

Here's a helpful thread for that, easy to do

http://www.tacomaworld.com/forum/2nd-gen-tacomas/70275-fan-speed-switch-not-working.html

 

Thanks Tim. I took my resister out (that is the backside of it in the picture to the far right). It does not look the same as the one in the pictures in your post. There were no burn marks on the wire or the connector, but there is something that does not look right on the other side of the resistor (will take a picture of it tomorrow).

 

I just looked further in the above mentioned thread and saw that Gregman purchased a new resistor that looks identical to mine. He also showed a picture of the other side and I can see a difference between his and mine. Guess I'll stop by the dealership tomorrow.