Originally Posted by
Tar Heel David
When I said nothing happened, no sound happened, sounded dead, but battery strong. No sounds from engine, starter.
Try the RCM first, refurbished by resoldering and inspecting relay contacts while it is out, or a whole new off market RCM.
Pull the unit out of the black box first and see if it is moving when the key is turned to ON and then RUN.
Other posts have full details.