Trim and tilt switch

I have almost got my boat put back together and am having a problem with the trim/tilt selector switch on the throttles. The Suzuki controls have a selector switch that allows for one button , simultaneous trim on both engines or individual control. The engines will only trim up individually, but will trim down together. All connections are correct. Maybe a bad switch? Any thoughts out there?

Maybe the relay

Sea Hunt 202
Yam 150