Ihave a 2006 f-150. My blower motor quits then if you turn it off then back on again it starts working again. I changed the relay and still does it. I pulled out the resister and it looks ok I mean it does not have any corrosion on it. I used a ohm meter on the connectors and three out of the four prongs had the beeping sound. Sorry I am no electrician so I do not know the correct terminology.

Jim

 

Can you post some info on your truck or complete your profile, including trim level.

Need to know if the system is EATC or EMTC.

 

Not sure what you mean??? What is trim level??? All i can tell you is it is a F-150 4x4

 

Trim level would be XL, XLT Lariat, FX4, King Ranch, etc.