Electrical issue (Won't turn on or turn over, but the horn works))

My 02 tacoma is dead in it's tracks. The lights are out (Including the dome light), and it won't turn on when cranked, but the horn works, and the battery is good. I tried jumping it earlier but it did no good.

I checked all of the fuses in both the internal and external fuse boxes and they both check out, any ideas?

 

I'd say the contacts in the starter but with the lights not working...

 

I'm a new member but I've had the problem. In my case the hot connection to the battery was not making a good connection. My clamp was tightened all the way so I put a small metal shim between the cable and hot pole...it worked fine. Today I'll get a new cable or cable end. Hope this helps.

 

I know you have had a bunch of info already but check the grounds also. I used to have a 1971 Volhswagen and grounds were always a problem with them. I actually added more grounds on my truck just for peace of mind. Check the electrical connections, as well as the wires, I have seen a beautiful set of wires actually have corrosion "Growing" the entire length of cable.