My wheel has adapter power, wheel calibrates perfectly but no LED light on the wheel itself and none of the buttons work. I've checked all connections from USB console/pc cable back to the main circuit board plug. I've also checked continuity between the wheel plug and the other end, the main board plug - all good.

So, I can steer a car in a game but none of the buttons work at all and no rev lights or green power light on wheel.

PS Just replaced the main board with a working replacement or so I've been told by the seller.