1990 Cadillac De ville on 1990 Cadillac DeVille

My ECBM is out on my Cadillac. Would like to fix it but can't located the ECBM. The Chilton book shows that it should be located in the trunk driver side. Can anyone please help me located it so I can fix my car and get back on the road. It would be appreciated.

Asked by for the 1990 Cadillac DeVille