Dead 1998 Sonoma

This started two days ago and is intermittent.... Truck is running fine then....dead. No dash lights.....no headlights......no interior lights....nothing happens when I turn the key. I checked the battery and it was OK. I looked for a loose connection under the dashboard and eventually lights came on and the truck fired right off. I don't know what I did to resolve the problem....this AM nothing worked.... Any suggestions?

Welcome to AF.
Proper testing first.
Go to fuse boxes and see if everything has power first.

Ended up being bad battery connection....Duh!:screwy:

Thanks for posting back the fix.
Glad you got it fixed.
Was wondering how you found the problem?