Originally Posted by starfishblaabla
I have a the above model
The head will not talk to the wheel drive.
seems to work
Head fires up and seems to work
Wheel drive works if I hard wire power to it
Any ideas before I remove and send to Raymarine
Put a meter on the output wires from the autohelm
. On way will show battery
voltage and then negative battery
voltage, depending on which way the system thinks you are going. No voltage out means checking the circuit board.