I've had my 14 Mustang for about 3 months now and it has been everything I thought it would be but a few days ago the blower motor stopped right before yesterdays crazy cold. Sunday it's supposed to be in the 40's which seems like my best bet to troubleshoot this. Does anyone know where the blower resister is located? I couldn't find anything on youtube or via google search for my year Mustang. It also appears that there are 2 relays for the blower motor? #4 and #51 and fuse is #15 in the passenger compartment fuse box. Does anyone know what relays these are in case I need to get them replaced? I would just look but it's still like -20 outside and I don't have a garage to look at it in.

 

I'm going to guess the resister is in the same place as my '06. If so, then look under the dash on the passenger side. It will be right there in the air vent held in by two hex screws. It's easy to change if you can still bend like a young man. Me, it was a bit tough to get my old rear end in the right position, but I got 'er done. But, at -20 the thing may have to stay broke before I would get of there.