1st Gen R53 Cooper S DSC Light coming on at redline

Discussion in '1st Generation: 2002–06 R50, R53 & 2004–08 R52' started by anuppercasej, Dec 10, 2015.

  1. anuppercasej

    anuppercasej New Member

    Jun 11, 2010
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    I have had this happen to me a few times recently while driving my 2006 R53. Under very spirited acceleration, getting near redline, the DSC light will turn on. Once it turns on it stays on until I shut off the car and it doesn't come back on after restart. I've even reset the ECU and it still happens. Current mods are a 15% pulley, Craven CAI, and a WMW Quicktune, I'm currently at 91k miles. I'm curious as to what is causing this and if it is something I need to worry about.

    I did a search to see what info I could find and it came up with a thread on the other site, but there wasn't a whole lot of info. Anybody have any ideas?
     
  2. Nathan

    Nathan Founder

    Mar 30, 2009
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    Any codes?
     
  3. anuppercasej

    anuppercasej New Member

    Jun 11, 2010
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    I haven't put a code reader on it, I should probably do that. I just assumed if there wasn't a CEL there might not be a code. I'll check it tonight.
     
  4. anuppercasej

    anuppercasej New Member

    Jun 11, 2010
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    I did a fault code check Torque Pro and it said there were no stored codes in the ECU. Maybe I should try to get the light to turn on then check for codes again.
     
  5. Dave.0

    Dave.0 Helix & RMW Powered
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    May 4, 2009
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    Just turn off DSC or buy better tire's that can grip the road very well.

    Your is loosing grip and the computer is taking over and turning the DSC on.

    You are after all pushing your car to redline and if you are running Runflats or a cheaper tire in cool weather conditions this is typical.

    Your need for speed is exceeding your tire's limits in th urgent temps.
     
  6. anuppercasej

    anuppercasej New Member

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    Could certainly be a possibility since the cold wet weather has arrived here in the Pacific Northwest. I'm planning on replacing the tires very soon. These ones were on the car when I bought it, even though they are fairly new, I haven't been impressed with them. I can easily spin the tires any time I start from a stop.
     
  7. Crashton

    Crashton Club Coordinator

    Jun 4, 2009
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    Kill the nanny...... :D
     
  8. narvarr

    narvarr Active Member

    Nov 8, 2014
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    Usually, the DSC light will come on and stay on if you have an overboost condition or if your TMAP sensor is flaking out. How high does your boost get at redline?
     
  9. UKCoopeR

    UKCoopeR Active Member

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    #9 UKCoopeR, Dec 25, 2015
    Last edited: Dec 25, 2015
    What this dude said ^

    I had that happen to me but i also threw codes which made trouble shooting easier... (ending up being one of the map sensors, don't remember which one). Replaced the sensor and everything was back to normal. Does it idle okay? Mine starting stalling at idle after a day (took a while to get the part)
     
  10. anuppercasej

    anuppercasej New Member

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    I think of seen around 16-16.5 psi at boost at other times when I have been monitoring it. I don't know what I was getting when the light came on. Idle, for the most part, seems fine, no stalling issues. I'll look into the TMAP sensor, it may be good to replace it just in case.
     
  11. narvarr

    narvarr Active Member

    Nov 8, 2014
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    Make sure to get an OEM or equivalent. I got one from a local parts house and it lasted all of 6 months before it died. Replaced with OEM and all is good.
     
  12. anuppercasej

    anuppercasej New Member

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    Cool. I will track one down.
     

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