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Thread: 2003 325i Service Engine Codes

  1. #1
    Join Date
    Aug 2018
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    2003 325i

    2003 325i Service Engine Codes

    First post here as I'm a brand new BMW owner. I've got a service engine light on and a few codes. Just wondering if anyone could point me in the direction or where I can view all these codes or maybe even offer some advice on how to fix them. Thanks in advance!

    Codes are:

    01; Wiper Fuse for pump
    02; Central locking system, fuse light
    06; Pressure Sensor, AUC Supply
    1E; AUC heating
    1C; AUC Sensor
    07; SPMBT, mirror motor, potentiometer vertical
    F5; Flow Rate, Secondary Air too low Bank 1 & 2
    BE; Data Filing difference to light control module
    63; Toleration of changing code increased with key
    07; Anti Theft alarm short or open
    30; Central Locking short
    38; Wiper, pump for window washing

  2. #2
    Join Date
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    36 Cylinders
    Service engine light is for your failed secondary air pump system.

    The other errors are in other modules.
    I would fix the secondary air pump system and clear the others, as they could easily be stored old codes. Then see what comes back.
    -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
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    2003 325i
    Quote Originally Posted by 328 Power 04 View Post
    Service engine light is for your failed secondary air pump system.

    The other errors are in other modules.
    I would fix the secondary air pump system and clear the others, as they could easily be stored old codes. Then see what comes back.
    Gotcha. Thanks for the help! And just to clarify, that’s the pressure sensor code you’re talking about? Any suggestions on where I should start on trying to fix that?
    Last edited by zharris; 08-14-2018 at 07:12 AM.

  4. #4
    Join Date
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    It's for a sensor in the hvac, part of the automatic air circulation system.




    For future reference, you should sort your codes by the module they came out of. Example, AC codes came from IHKA module.
    -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

  5. #5
    Join Date
    Aug 2018
    Location
    NC
    Posts
    3
    My Cars
    2003 325i
    Thanks again! And will do, I was just given the list in that order from my uncle when I got the car from him.

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