ramseycm

Hey new guy here,, I have a Monterey 240 explorer deck boat and my trim/tilt gauge is not working. The needle is sticking straight up. I tested the gauge and it works fine. I just replaced the 2 senders on the outdrive and it still doesn't work. So I assume it would go to the trim / tilt motor and give a feed back to the gauge. What else do I need to test? The outdrive does go up and down so the relays are working. thanks for the help Mike