Brake light will not turn off

I have put new brake light switch on it, new fuse’s, replaced All 6 of the bulbs and checked the brake pedal coming all the way up. Still the lights won’t turn off.
Checked parking brake switch.
Put new battery on van checked for burned wire I don’t see any. I have taken van apart seats out console still can’t find the problem. Check fuse box inside and under the hood.
Take all the body ground’s off cleaned them.
Two of dash lights passages airbag is on and on the dash about the radio that light tells me it’s off.
I have worked all my cars most of my life can’t fix this one. Need some help please and today the wrench came on dash van runs fine.