1st Gen R53 Cooper S Most liked posts in thread: 2006 Mini Cooper S - Not Starting - NEED HELP!

  1. Nathan

    Nathan Founder

    Mar 30, 2009
    25,144
    10,052
    113
    Writer
    Short North
    Ratings:
    +10,069 / 0 / -0
    Welcome, thanks for joining Motoring Alliance, the FUN and Friendly MINI Community.

    I'm going to think that since the ECU was bricked and y'all tried to start it the anti-theft code rolled in the Body Control Module but not in the ECU. Now they don't match.

    It's going to take the dealer or a shop with the right hardware to re-code the systems and get the BCM and ECU back on the same code.

    That's what I think it might be.
     
  2. Jason Montague

    Jason Montague New Member
    Lifetime Supporter

    Jan 5, 2010
    6,134
    1,588
    0
    Physician Assitant (retired)
    Sherman,Tx
    Ratings:
    +1,588 / 0 / -0
    :cornut: Wow Nathan, I'm impressed! Welcome to MA and good luck with the fix.:Thumbsup:

    Jason
     
  3. lakeober

    lakeober New Member

    Jun 18, 2013
    2
    0
    0
    Ratings:
    +0 / 0 / -0
    Thank you VERY much for your answer Nathan. I greatly appreciate your quick response. I think that your diagnosis may be a very possible option. I don't think we would have ever thought of something like that. Do you think if the codes didn't match, that the engine would turn over, or do you think it would just do nothing?

    Also, do you believe that the issue could be with the ECU not functioning properly? Like I said, the ECU was sent out and rebuilt, but I suppose there is always the possibility that the company who did it, didn't do it it properly. I think we are getting somewhere with this... too bad it's probably gonna be a problem that requires the dealership (we live almost 2 hours from a Mini dealer, and the car has to be towed obviously). But you gotta do what you gotta do :wink:
     
  4. rkw

    rkw Well-Known Member

    May 7, 2009
    1,253
    443
    83
    San Francisco
    Ratings:
    +449 / 0 / -0
    I'm skeptical about the anti-theft code theory. The wiring documentation says the immobilizer disables the starter relay.
     
  5. Nathan

    Nathan Founder

    Mar 30, 2009
    25,144
    10,052
    113
    Writer
    Short North
    Ratings:
    +10,069 / 0 / -0
    I come by my theory form bricking the ECU not once, but twice. Both times the engine would turn over but not start.

    Then again, I could be wrong.
     
  6. TBO2Go

    TBO2Go New Member

    Jan 19, 2014
    12
    12
    0
    Ratings:
    +12 / 0 / -0
    So what was the fix on this?

    I am having similar problems with my 07 S. Mine would initially start but 10 sec later stop then wait and hour and repeat. Replaced the DME (from Mini) and the crank sensor. Right now I have no spark, no fuel (no injector trigger) but the engine will turn over.

    Thanks
     
  7. Dave.0

    Dave.0 Helix & RMW Powered
    Lifetime Supporter

    May 4, 2009
    25,021
    13,497
    113
    Burbs of Philly, PA
    Ratings:
    +14,644 / 10 / -4
    By reading above it looks like they had to it to the dealer to correct a coding issue because the ECU/DME and the BCM did not match. BCM (Body Control Module)