95 303SR1 Trim rockers and Throttle switch quit working on both drives. Works if jumpered at trim relays under hatch. Any guess where to look? Where can I get a wiring diagram ?

There is a connector between throttles and pump, right on the pump. Have had the connector go bad but in most cases doesn't happen to both at once.
Check that the fuse didn't blow.

This is for a single, but you should have double