I Have A Check Trans Light And Back Up Mode[no Auto Shift]. There Is A Code 22 In The Tcm. Alldata Says This Code Is For The Tp Signal. Checked The Signal At The Tcm And It Is Ok. Flow Chart Says To Replace The Memcal. No Help There. Also Replaced The Tcm With Used And New Mem Cal. No Help. Any Ideas?

Did you verify it's not the range/mode sensor? Do your "PRND321" dash lights line up exactly with what gear you have selected with the floor shifter? If your dash gear indicator is fine, your range sensor is ok, I'd check for a broken wire. Check for wear marks on the wire loom(s) around the tranny under the truck.
G/luck
Joel