Gretsch
SILVER Star
And if it seems to be the EC is faulty (because as @Pin_Head said grounding it DOES enable the FCS to work) , I began this thread awhile back on reflowing the solder points which may be cracked... Reflowing Solder Points
I ended up reflowing mine. Worried I was going to mess it up and have to find a new EC but it worked out and has been rock solid since.