things not working

I have had this happen to me three times now,I have started my 05 tacoma and turned the a/c on and it didn't work I turned my radio on it didn't work either I stoped and went in a store (this is the first time it happened) when I came back out the a/c came on I drove about 20 miles down the road and had to stop to get fuel, when I started it up this time everything worked nothing came up on the dash during any of this,it has done this a couple of times since then, when it happens I can stop my truck take the keys out put the key back in and start it and everything works I have called toyota every time it has happened and was told if it doesen't bring up anything on the dash theres nothing they can do about it.

 

i would check all the fusses and relays, looks like some sort of short

 

go through any large puddles lately?