In the never ending game of maintenance whack a mole. My trim stopped working on my outdrives. I noticed that one was only going up and then both stopped working completely. I can jump out the trim motors by putting power to either the blue or green wire and it will raise and lower the drives. I just recently replaced both brackets and solenoids with https://nuwavemarine.com/mercruiser-stainless-steel-trim-pump-bracket-w-wiring-solenoid-862548a1/
So i don't think it is that. Especially as both of them went pretty close to each other. However i would like to prove it. The wiring harness going into the solenoid is 3 wires (Red, Green and Blue. Green and blue should correspond with up and down and i am thinking Red is just positive. The question is does anyone know how many volts goes to the solenoid? I don't want to just jump it with 12v and burn out the solenoids. The next is the switch assembly. I tested the rocker switch on the handle and i think that is fine. It plugs into a harness with the two individual switches that also will put the outdrives into trailer position. This then goes to a black sealed square. Anyone know how to test the switches and the function of that square?