Hi, Terry!
It's not obvious from the site name, but you have landed on a forum specializing in the clamshell type of frameless, molded
fiberglass trailers made by
Casita,
Scamp (no relation), and others.
Yours is a laminated
fiberglass trailer, which is a somewhat different animal. You may get useful general information here, but for something model-specific like a wiring diagram you'll be more likely to find another
ECO owner on a general RV site such as
www.iRV2.com.
I was surprised to see the Skamper name. My parents had one of the original Skamper hard-top tent trailers back in the 70's. The brand was
sold to AMF in 1972 and went through several more hands before landing in the Thor stable. I didn't realize the name was still in circulation. Looks like it was last used in 2010.
Best wishes!