I went on a quest to restore the function of my keyless entry system.
First thing I found is that the control module was missing
So I went on a quest to find a replacement, which turned out to be from a 1990 Thunderbird. Searching on Ebay, I matched it by the connector and the color of the wires on the connectors. This is the model that worked for 1993 34' Cleassic Limited:
90 TBIRD Manufacturer Part Number: E8DB-14B001-AA Part Brand: OEM Interchange Part Number: Hollander# 591-400
After installing it, I found out that the actuator had a burned out motor. I was lucky to find an almost identical replacement online:
MES Door Lock Actuator (2 wire): A1 Electric Online Store
To get to the actuator requires removal of the interior door trim and removal of some interior skin, which turned out to be a good time to repair and remount the old switches and replace the interior skin with aluminum.
Now it works like a charm and I am proud of it.