Ok so I bought a 04 F-150 lariat yesterday and the fan does not work for the HVAC. I can turn the fan all the way up but nothing happens. I can hear the ac compressor kick on so I know that's working just the blower fan isn't working. I went to autozone to get the blower motor resistor but when I got back and took mine out I realized I didn't get the right one. Mine has a big heat sink on it and the one I got from autozone is just a flat chip looking thing. I'm gonna get the number off it and call ford tomorrow but I'd like to her your thoughts in case that doesn't fix it. I checked the fuse on the passenger side and it's fine. Also I don't know if this would be felted or not but the timer on the cluster just says 00.00.00 and doesn't do anything. The guy I bought it from said he had his mechanic look at the problem and said it was the driver control module. I got one of them too but it looks like its the kind for a turn **** temp setup. I appreciate any ideas and apologize because I know this has been posted before but I couldnt find a post that really helped me. If you need any other info of the truck let me know.

 

:bump

 

I'd start by checking with a meter at he blower motor if you have 12v. That'll let you know where to start. Normally if it's a resistor you'll loose speeds of a motor but full speed will still work. With the auto temp control that may not be the case however.

 

Ok. Thanks I will look into that.

 

you can also ran the diagnostics for the HVAC, it may tell you something:
https://www.f150forum.com/f4/c-probl...-ideas-157292/

 

thanks man.

i got the following codes

12 63 Servo Motor Vent Circuit Failure
12 64 didnt find any info on this one.
22 66 Left Side Blend Door Circuit Failure
22 68 Steering Wheel Climate Control Circuit Open
13 42 ECU Is Faulted

Looks like i got some research to do tonight after work, unless someone knows how to fix these and where each part is located.

 

anyone have these codes before and know how to fix them or at least how much im lookin at?

 

anybody?

 

Did you check all the fuses? Not just visual, with a probe or multi-meter.

 

No. I pulled the fuse and swapped it with another of the same kind and tried that and worked in the other spot and the fan still didnt work. It goes into ford tomorrow after work to find out what's wrong.