BUICK RENDEZVOUS U CODES U1000

I Have This Dtc, Because The Owner Try To Change The Radio But Make A Shortcut, The Pcm Was Damged, Change The Pcm But It's For A Fwd...

I Hooked Up My Scan Tool And It Gave A Code U1000, Trying Figure Why All Of A Sudden, This Code Came Up. Had Problems With The Car Would...