Chances are the alarm is cut into the fuel circuit, so when the alarm is armed the feed to the pump is open circuit and then with the alarm turned off the circuit is complete. So I can't see why the alarm would cause the problem your seeing. I'd certainly be looking at the wiring for the RH Switch, not just the water proof Amphenol connector but also the round multi pin above the battery Checkout the Desmo Due Paddock on Facebook |