2000 Carryall Not Moving!

[Doc]

Got in my '00 Carryall this morning and No-Go. The cart has never once given me any problems whatsoever. After checking all connections, etc I pushed down on the go pedal, cart moved literally about 1/2 inch and stopped moving. I smelled a very slight "plasticky" burning smell and found this (see pic). It was hotter than a lid on hell. Did it fail? What is it and what does it do? Where can I get another and ensure that it doesn't happen again? Thanks in advance!
Doc

[Michael Eddie]

Looks like the solenoid, and some pretty dirty connections. You can find them anywhere that sells golf cart parts, including your dealer. Install a new one, and clean up that cart!

[Doc]

Wel, I tested the solenoid, it checked out OK, Replaced the blue cable end and still no-go. What do you think the chances of it being the controller? A golf cart expert told me that it is the most likely culprit...but I'd like some other opinion before I blow 200+ bucks!
Thanks for any input!
Doc