Our Flex Control II monitor is giving a readout of "No Remotes Connected" when everything is hooked up as it should be. We are also getting an error "Communication Error - CAN BUS". We have talked to many people on the phone and it seems like every person has a different idea to try. So far we have changed both terminators, tried a different monitor on the system, tried disconnecting sensors and checked voltages in the harness and nothing has changed the messages that are being displayed. The only thing the monitor is recognizing that it is attached to is the Air Cart Switch Box. The cart is mechanical drive. Has anyone come across this?