Does anyone know why both of my lumbar back adjusters are inop on my 1986 to 1991 gen Eldorado Biarritz, and possible fixes? Is there a fuse just for this? I can't find anything on the web about this problem on my generation Eldorado, so any help would be greatly appreciated! Also, I just won an auction last night for an original GM service manual for 1989 Eldorado and Seville, so maybe I can use that to answer my own question, or help someone else out in the future who doesn't have this very valuable resource.

 

Your FSM should have what you need. I would check the connectors under the seats, or wait for FSM to arrive.