I have a 2001 F150. The auxillary power outlet on the dash is not working. I have searched the owner's manual for the proper fuse number with no success. Suggestion?

 

It should be fuse #3 in the cab. a 20 amp fuse.

 

CJB ( Central Junction Box = Inside the Cab ) Fuse #3 is for the Cigar lighter and ODB-II connector, not the aux 12 v power outlet next to it.

Try the BJB ( Battery Junction Box = Under the hood ) Fuse #1 20 AMP.
I do believe what you are referring to is called the power point.

In the SCrew there is also the Rear Aux power point, which would be the BJB fuse # 12, 20 AMP, this is where I am taking the nomenclature from

Take a look in your Owners Manual under the Roadside emergencies, page 135. If we have the same revision manual, that is.