I have a crazy trim / drive problem. 03 Formula 292 Fastech. Key off trailer switches work fine drives up and down. Key on the port drive switch works u/d the STRB you have to keep tapping the switch to make it go up but down is ok.
I swapped the switch, same problem on STRB side. Put a new solenoid, same issue. Bypassed the harness by taking a wire from the up terminal to the solenoid and same issue. Now I’m stumped!

Trim limit switch on port side of starboard gimbal ring

is there a different trim level switch for the trailer mode or the rams limit the trailer trim?

No, when trailer switches are used it bypasses the limit switches.
In the pic below, note the Purple/White wire coming from the throttle handle. This is the trailer feed wire which takes power from the Red/Purple and sends it direct the the Purple/white

The trim limit can be bypassed by connecting the purple White with the Blue/White. If this is done then the drive can be trimmed full up same as trailer switch.

Thanks for the info! I’m going to jump those two wires to make sure it’s the sender.

Oh I misspoke about wire colors only, not that jumping would bypass.

The Purple/White comes from the trim switch and the Blue/White comes from trailer, otherwise the same

Okay. Turns out it’s not the trim sender. I called Formula and they sent this diagram.

Okay. Turns out it’s not the trim sender. I called Formula and they sent this diagram showing an outdrive control box. It’s wired between the switches and the trim pump. Has anyone ever seen this box?
I’m unable to post diagram.

Now that you have 10 post you should be able to post pic