i have a 1998 f150 2x4 the wipers seatbelt light in inst.clstr dome light and the warning chime if key is in switch do not work if i unhook battery for 20min. or so then hook it back up it all works for a while after truck sits awhile it stops working!!!!! ant ideas it driving me nuts!

 

i got it narrowed down to the gen module gonna replace it today.