Unplug the fan and now, NO REVERSE!!

[Emaxx_Quebec]

Not fixed yet.
When I reverse the trottle to normal position on the Futaba it go backward and the red light is on on the MMM.
Still can't breaking with the transmitter.
How can I tell if a Futaba sending signal?
Steering:OK
Trottle: OK
Ch3: OK
Break ( Reverse): Nothing

I'll try another radio tonight