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Coolant system error message

Discussion in 'Roadster' started by zack, Jul 20, 2012.

  1. zack

    zack Member

    Joined:
    Nov 15, 2010
    Messages:
    946
    Location:
    Minneapolis, MN
    I got this message after turning off the AC switch and then turning off the fan, and then turning it back on again. AC seems to work, and my service rep said he's seen that message a couple of times but there was nothing wrong with the AC. He's going to download my logs and let me know if there's something to be worried about.

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  2. zack

    zack Member

    Joined:
    Nov 15, 2010
    Messages:
    946
    Location:
    Minneapolis, MN
    Bummer. My air conditioning is out.
     
  3. dsm363

    dsm363 Roadster + Sig Model S

    Joined:
    May 17, 2009
    Messages:
    18,235
    Location:
    Las Vegas, NV
    I was going to reply to this yesterday and say this is exactly what happened to my car then you said the AC was still working. This happened to my car in April last year. I was told I could drive the car but wouldn't have AC (it was already in the 90s so it wasn't fun). It ended up having to go to Chicago (they couldn't diagnose the problem in the field after trying for 8 hours). It turned out to be some faulty sensor that misread the incoming cabin temperature and wouldn't allow the AC to turn on even though the AC could actually work if the sensor would let it.
     
  4. This has to do with the heat exchanger temperature sensor for the battery coolant. If you keep driving it, you may get the "Reduced Power" pop up.
     
  5. W.Petefish

    W.Petefish Active Member

    Joined:
    Apr 29, 2011
    Messages:
    1,059
    Location:
    North Texas (DFW)
    Is your blower running after you turn the car off?
     

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