The other morning the radio came on by itself and would not shut off. lights on the dash were on, engine light ABS light, Battery light without the key in the ignition. Put the key in and tried to start but nothing, pulled relay# 203 heard click put it back in the truck starts, go to turn truck off, wont turn off with ignition in off position and key removed, pull relay# 203 out and truck turns off. Any help with this would be great!! Desparate

 

replace the relay to start.

 

this may be a stupid question but do you think battery acid on top of the battery could have caused this? I went out the next day and and put the terminals back onto the battery and everything seems to be working like nothing ever happened.

 

No.

Sounds more like a sticky relay or water has gotten into something and is causing a short that disappears when it dries out.