Re: Power Trim Relays
First, you don't have relays, you have solenoids. Next go up to the Adults Only sticky at the top of this forum and download the OEM service manual for your drive.
#6 should be the one you want. Then look at the section on troubleshooting. Complete details on how to check out your trim problem, with a wiring diagram.
It's probably just a faulty trim limit switch and not the relay, but only one way to find out.