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Thread: Drivetrain Malfunction: DTC Code 123603

  1. #1
    Join Date
    Jul 2011
    Location
    Milwaukee, WI
    Posts
    4
    My Cars
    2000 BMW 323i

    Drivetrain Malfunction: DTC Code 123603

    Currently at Sebring and car went into limp mode. The fault code that appears is DTC Code 123603.
    I can’t seem to find what that code is.
    Does anyone know?

    I turn off the car and turn back on and it doesn’t clear. I tried clearing it with JB4 and Simon 3 OBD cable and it comes right back on when I clear it.

  2. #2
    Join Date
    Jul 2004
    Location
    Houston, TX
    Posts
    12,459
    My Cars
    36 Cylinders
    What car?

    And what tool are you using to read this?
    Should get an INPA reading if you can.
    Last edited by 328 Power 04; 04-21-2018 at 10:55 AM.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

  3. #3
    Join Date
    Jul 2004
    Location
    Houston, TX
    Posts
    12,459
    My Cars
    36 Cylinders
    0x123603 electrical wastegate 2,activation: short-circuit to B+ or Ground


    https://www.bimmerforums.com/forum/s...function-on-M4
    Last edited by 328 Power 04; 04-21-2018 at 11:26 AM.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

  4. #4
    Join Date
    Jul 2011
    Location
    Milwaukee, WI
    Posts
    4
    My Cars
    2000 BMW 323i
    Thanks so much, I just looked at wastegate #2 and one of the black wires cable is melted and has expose wire.

  5. #5
    Join Date
    Mar 2003
    Location
    St. Joseph, Mo.
    Posts
    3,000
    My Cars
    95 m3+, 03 ZHP, Mk4 Tdi
    patch that wire and get back out there!
    '95 325iS - auto to manual swap done!

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