I replaced my trim tilt unit, but it doesn’t work, no motor operation in either direction. When I put a meter on the wires coming from the engine I get 12.7v for each wire when the buttons at the console are pressed. When I hook up the wires to the motor, nada. When I directly hook the motor wires to a 12v battery the TT works perfectly. New relays on the Power distribution panel. If the switch on the engine, the one on the upper shroud for use when your out of the boat, were bad, would that keep the motor from working? I’m stumped.
04-06-2018 09:21 - edited 04-06-2018 09:23
It is possible that the wiring and sockets for one or both relays are defective, a missing ground circuit to the relays could do the same. What many owners are not aware is that the opposite relay from the one that is activated provides the ground connection through the normally closed relay contact. The power distribution panel may have an internal problem or a bad connection in it. I assume that you tested the fuses.
Obtain a factory service manual for troubleshooting procedures and the color wiring diagram.
"There is never just one thing wrong with a boat";
-- Travis McGee, main character in a book series by John D. McDonald
The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.
The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.