faulty switch or EIM

Discussion in 'Electrical Stuff' started by Turkj40, Mar 4, 2018.

  1. Turkj40

    Turkj40 Member

    67
    Sep 17, 2014
    Plymouth Ma
    320 sundancer
    Twin inboard 350s
    2002 320,
    my SB switch is completely dead, indicator lights flash when powered up and thats it
    port switch allows trim tabs, lift down and blower to operate only
    have 13v at EIM terminals and 13v at quick connect for switches. pulled the dead switch apart and i do receive 13v power and 4.33v on what im guessing is the trigger form the EIM nothing outgoing power wise when buttons are pressed. Any help would be appreciated. looked up some older post with similar issues and no clarity on what may be the problem
     
  2. scoflaw

    scoflaw Well-Known Member SILVER Sponsor

    Aug 10, 2011
    cape cod mass
    1999 Powerquest legend 260 sx
    502 mpi Bravo 1
    Seems to be a common unrepairable problem. Need new parts
     
  3. JimG

    JimG Well-Known Member SILVER Sponsor

    Nov 4, 2008
    Southern WV
    2007 310 DA
    Kohler 5ECD
    Twin 350 Mags
    Raw Water Cooled
    V-Drives
    These are difficult to troubleshoot without spares to change out. There are four wires from the pads to the EIM... 12V, ground, and two for serial data communications.
     
  4. Turkj40

    Turkj40 Member

    67
    Sep 17, 2014
    Plymouth Ma
    320 sundancer
    Twin inboard 350s
    Yeah I’ve given up, can’t find parts and after thought don’t want to use someone else’s parts with the fear of cooking theirs. Just going to rewire all new toggles
     
  5. KevinC

    KevinC Active Member

    912
    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    1988 Proline Center Console - 90hp Mariner/Mercury
    1969 Boston Whaler
    Twin 8.1 V-drives
    You migh want to change out the switch pads first before dumping everything. They are somewhat available and easy to test. I do not think that a bad EIM would blow the switch pad (correct me if I am wrong) and you can possibly borrow one for testing from another boat.

    -Kevin
     
  6. Turkj40

    Turkj40 Member

    67
    Sep 17, 2014
    Plymouth Ma
    320 sundancer
    Twin inboard 350s
    The biggest issue is finding pads, they are no longer reproduced. Also borrowing someone else’s pads to see them get fried because I have a shirt is not a conversation I really want to have.
     
  7. JimG

    JimG Well-Known Member SILVER Sponsor

    Nov 4, 2008
    Southern WV
    2007 310 DA
    Kohler 5ECD
    Twin 350 Mags
    Raw Water Cooled
    V-Drives
    You are correct... if other pad switches work, then the data communication part is OK.
     

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