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  1. #1

    Default Power Trim Electrical Issue 2002 50 hp

    I have a 2002 Merc 50 three cylinder.
    The power trim lifts the motor fine but the down is not working.
    I thought it was a bad relay so I replaced them.
    Problem still persists -- will go up but not down.
    If I pull the blue & green wires and jump direct from the battery I can make it go up/ reverse the wires and it goes down fine. So I know it's not the trim motor.

    Could I have a bad ground after that relay? Schematic shows ground to the chassis but where in reality I can't see.

  2. #2
    Join Date
    Dec 2009
    Location
    Rineyville, KY, U.S.A.
    Posts
    217

    Default Re: Power Trim Electrical Issue

    could be a ground, or it could be a bad trim switch.

  3. #3

    Default Re: Power Trim Electrical Issue

    I had thought about the trim switch, but if I reverse the blue and green wires leading to the trim motor and then push the button for up the motor goes down. So it appears the switch is good.

  4. #4
    Join Date
    Dec 2009
    Location
    Rineyville, KY, U.S.A.
    Posts
    217

    Default Re: Power Trim Electrical Issue

    no, if you reverse the wires, then the switch is not making contact when you push down. replace the switch.

  5. #5

    Default Re: Power Trim Electrical Issue

    AHHHHH! So true!

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