If you can't find the answer here then you might try calling Airstream to find out.
__________________ Just adding my 2¢ worth
John G ___________________________ 1975 31ft Sovereign International ........Rear Bath Double Bed Model Tow Vehicle:1999 GMC Serria SLE Classic 1500 5.7Ltr System: Jordon 2020 Ultima Brake Controller Hook-Up: Equalizing Hitch and Sway Bar
As far as I know, the keyless entry systems have always been manufactured by Motorcraft. I don't think that's changed. If you can locate the actual control module it should have a Motorcraft sticker right on it.
This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.