I ran into problem with my port side trim. While out Sunday, I could not raise the drive with the ignition on. If I turned off the ignition, the trailer circuit wPold allow the drive to come back up. Looking at it today, it appeared to be an issue with the purple with white stripe wire that was supposed to be providing power to the up circuit. I connected the up wire to the same pole as the down side, and it works for now, it it isn’t right.

Lookig at Formula’s wiring diagram, it shows this purple with white stripe wiring going to the “Merc Black Box” which then says see Merc literature. I cannot find this wire at the trim pump. Where does it go? What’s a Merc Black Box?

Anyone?

I found a copy online of the chapter that covers this. I appreciate the offer! now I just need to figure it out.

Seems like it.

My boat doesn’t have any trim limit switches to my knowledge. All of my pumps will continue running in either direction; always has.

I tried looking at the harnesses last night, and found some purple wires that were splices together. I’m assuming this was done to close the trim loop, but I can’t be sure.

Is it okay to leave it bypassed? I’d rather have it working, but in my case I don’t think it has ever worked as intended.

I’ve not yet found a trim limit switch in this boat... where would this be typically? It’s definitely not on the drives.

I should have clarified....

I know where they’re supposed to be. Mine are cut, and look like they’ve always been cut.

And yes, there is splicing of purple and blue wires in the harness near the pump (but no purple/white).

Where does the purple/white wire originate from? I’ll need to break out the schematics I guess. It doesn’t appear to come from the helm; it goes into the trim wiring harness.