Is the Battery Hot?
That uses the relay box and sometimes the relays go bad. You can troubleshoot it. iboats sells the relays pretty cheap and they are easy to change. Johnson, Evinrude, MES, Volvo-Penta, OMC Sterndrive Cobra, GLM Replacement Power Tilt and Trim Motor Relay R473 - Arco - iboats
This will probably take 2 people but with a multi meter inside the box you will see if connections are working and actually feel the individual relays clicking ....... there should be a wiring diagram inside the top cover of the box when you open it.
Go to shopevinrude.com and look at an exploded view of the box![]()
Give the t/t mtr a few raps with a small hammer and see what happens with somebody holding the switch in either up or down and see what happens.