I would check power at the big wires on the winch first if it’s good there then on to checking control connections. The winch control “brain” is on the front firewall with the busbar, a little under the driver side hood plastic. I’d check that that, the harness at the winch and the dash switch is fully plugged in, and go from there.So my winch is dead, not doing anything. Don't see that it's fused and not sure how / where to start diagnosing it???