I have a 1999 Mercruiser Alpha ! Gen II sterndrive. The power trim does not
go up with the shift mounted control, but does activate with the TRAILER
button.

The service manual suggests that the switch may be faulty. I also have some
trouble shooting info in the manual to try. The trim pump is located in a
hard to get at location. before I try to get at the pump, I though I would
ask the group for suggestions.

Thanks in advance....

Dave