Is my Computer Fried?
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  • 1 Post By neuronbob
2009-2014 Cadillac CTS-V General Discussion Discussion, Is my Computer Fried? in Cadillac CTS-V Series Forum - 2009-2014; The other day I was sitting in line at Taco Bell. My V started beeping, and saying stabilitrac off, and ...
  1. #1
    Adic2Speed's Avatar
    Adic2Speed is offline Cadillac Owners Member
    Automobile(s): 2009 CTS-V
    Join Date
    Jun 2011
    Age
    36
    Posts
    37

    Is my Computer Fried?

    The other day I was sitting in line at Taco Bell. My V started beeping, and saying stabilitrac off, and service stabilitrac. The gauges were bouncing up and down, then the check engine light came on.

    Codes P0700 and U0073

    The car went into limp mode and would not shift gears. The engine still ran smooth.

    I spoke with a friend who suggested it may be a bad ground somewhere. I looked around at what I could find, mad sure connections on the ECM were seated properly, checked to make sure the main ground line was tight. Everything looked of.

    I cleared the code, and drove away. Everything seemed to be fine. I drove about 20 minutes. As I came to a stop sign the engine shut off. It started right back up, but with the check engine light on. This time with:

    Code P0330

    I was only a few blocks from the house so I drove home. To eliminate the knock sensor from the equation for $12.00 I replaced it.

    In my driveway I started the car and let it run several minutes, stopped it, repeated, no check engine lights, but it said my tire pressure on my front left tire was 89psi.

    I started to drive away, and made it about 4 blocks. Lights on my dash started flashing, stabilitrac started flashing, I put my hazards on and slowed down. My rear door locks started locking and unlocking.

    Long story a little shorter, since then I have scanned the following codes:

    U0073
    U0100
    U0073

    Then

    P0303
    P3007
    P00c0
    C33aa
    B2aaa
    B2aaa

    Then

    P0303
    P3007
    P00c0
    C33aa
    B2aaa
    B2aaa
    Rxe
    ror


    Obviously there is some computer problem, but I did pull the #3 plug, looked clean, no signs of detonation.


    Through all this the engine has ran smooth as silk.

    The photos are the screen shots from the scanned codes.


    Any suggestions?
    Is my computer gone?
    Is there possibly some other issue?

    Anyone else experienced this?
    Attached Images

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  3. #2
    seeet vv is offline Cadillac Owners Fanatic
    Automobile(s): CTSV, ESC. EXT
    Join Date
    Nov 2013
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    Re: Is my Computer Fried?

    No one else is responding so I will chime in. I dont know

  4. #3
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
    Automobile(s): Crimson 2001 Seville STS, 1990 Seville (RIP)
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    Codes are meaningless without definitions.

  5. #4
    neuronbob's Avatar
    neuronbob is online now Cadillac Owners Connoisseur
    Automobile(s): 2013 6MT V wagon, OBM, 2009 silver V sedan (traded)
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    Re: Is my Computer Fried?

    I note you have a 2009 V. How old is your battery? Dying batteries can cause all sorts of electronic gremlins in modern cars. Might want to have the battery checked.
    odla likes this.

  6. #5
    jduck is offline Cadillac Owners Member
    Automobile(s): cts-v
    Join Date
    Jun 2012
    Posts
    23

    Re: Is my Computer Fried?

    Christine.....

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