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Thread: new mpem

  1. #1

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    new mpem

    when intstalling a new mpem will my dess still work or will it need programming?


  2. #2
    It will need to be programmed to work with your key(s).

  3. #3

    Join Date
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    forgot to ask who im getting it from. Hopefully it will come with the dess.

  4. #4
    if it has no lanyard programmed the it does not have the anti start feature and i think then all lanyards work.
    some do it some don't

  5. #5
    maxadrenaline's Avatar
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    The MPEM DESS can be de-activated by programing from a sea-doo dealer. Any key will work then. OR, you can have it programed to your key.

  6. #6
    Not true. Only the very earliest MPEM's that had the DESS feature came new with no key programmed to them. Once a key has been programmed to any MPEM, new or old, DESS cannot be deactivated by either the hand-held MPEM programmer or the BUDS system.

  7. #7
    maxadrenaline's Avatar
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    Yes you are correct. If the mpem has never been prorammed for DESS, then you do not need a key. Thanks..

  8. #8
    95spi w\factory pipe/96xp Diggler's Avatar
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    So if one was to order a new mpem strait from a seadoo parts dealer, and install it to thier craft then would the old key work along with any key?

  9. #9
    All depends on the MPEM. As I said, the earliest MPEM's, and some of the replacement versions like the 278 001 134, were used for both DESS and non-DESS skis with 587/720 engines in 1995/1996. (I have several of these NOS if you want one, PM me) They come from the factory with no keys programmed in them so they will work with any key or the old style lanyard & switch.

    All later (1996 on) MPEM's made for 787/951 DESS skis come new from the factory with all 8 key slots already programmed with dummy keys. You have to erase all keys and program a new key into it to get them to work in the first place. No shortcuts here.

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