I already have an enhanced lisc. Is separate identification ie passprt, ss card, birth cert still required at renewal?

No, just the current license.

I don't think so. Once you have an enhanced its valid for renewal as is.

For more information on what services are offered, please call or visit your local AAA service center, or visit us online. https://hartford.aaa.com/dmv-ct

Not sure i just used my license

I don't believe so.