Mercury SmartCraft question

Discussion in 'Sport Boats' started by mosher0330, Jul 3, 2022.

  1. mosher0330

    mosher0330 New Member

    May 23, 2021
    2003 Sea Ray 270 SunDeck
    Hey everyone. I have a 2003 SunDeck 270 with a 6.2L and Bravo3. I always leave the SmartCraft set to depth, however it always seems to toggle between depth and trim every 15-30 seconds, even when I’m not adjusting the trim. Is this normal?
  2. FLWestCoast

    FLWestCoast Member

    May 3, 2021
    Tampa Bay
    240 Sea Ray Sundeck 2005
    Mercruiser 350 Mag MPI
    I recently replaced the trim sending unit and am having the same experience. Sometimes it happens so frequently that the SC gauge is practically unusable. I suspect that it shouldn't be doing this and that I have an electrical connection problem somewhere.

    I did find a workaround, which is to go into the SC setup and disable the "Trim Popup?" setting.

    On my SC gauge (tach):
    1. Mode and + until the calibration setup appears
    2. Mode until CAL 1 appears
    3. Mode until Trim Popup? option appeared
    4. I selected No and Save
  3. Espos4

    Espos4 Well-Known Member

    Jan 1, 2017
    Long Island NY
    2007 240 Sundeck
    350 MAG Bravo 3 W/DTS
    That’s not normal.
    With the pop up enabled, it should show trim for 2-3 seconds whenever you trim up or down.

    I suspect one or both of the trim pucks or wiring has degraded and needs cleaning or replacement.

    For the time being, as mentioned above, just disable the pop up setting.

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