Flashing Lights

97 rodeo with 148'000 miles......my check engine light stays on and my check trans lights flashes. i have gotten the codes pulled and erased, i've had everything check and nothing is wrong, but the lights still come back on and stay.....what the heck is going on how do i get rid of them????

What ARE the codes? Can't clear them without fixing the issue.

gah i cant remember what they were but we have had it checked out all over and nobody found anything. im going to get the codes pulled again and see what it says tho.