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Thread: Intermittent Active Steering module "not responding" and 614A error code

  1. #1
    Join Date
    Aug 2018
    Location
    Gothenburg, Sweden
    Posts
    3
    My Cars
    E60 530i 2004

    Intermittent Active Steering module "not responding" and 614A error code

    Hello!

    Long story short. I bought a car (E60 2004, 530i) with "Active Steering fault" message in the display.
    I started my troubleshooting with filling up CHF and the recalibration steering wheel trick but with no luck.

    Connected INPA and got "ECU not responding". I took up the passenger mat and the ECU was obviously wet. It had also some corrosion on the outside/case but the connector seemed fine. I sprayed the connectors with electronic cleaning spray. I also took the ECU apart with a heater and also ran it in a supersonic cleaner. Made a battery reset on the car and connected it again. Now I could talk to it and see it in INPA and got error code in the AL/AFS:

    Code:
    614A Motorlagewinkel nicht initialisiert
    Code:
    kein passendes Fehlersymptom
    Testbedingungen noch nicht erfuellt
    Fehler momentan vorhanden und bereits gespeichert
    Fehler wuerde kein Aufleuchten einer Warnlampe verursachen
    Allgemeiner Fehler
    Error code: 61 4A 70 00 01 00 6E 8B 13 1B 00 00 00 00 00 9B
    00 00 00 00 00 00 00 00
    The motorlagerwinkel seemed to be at -1440. All other values seemed fine and real time monitoring seemed OK and lined up pretty OK with the steering wheel as well.

    However, the unit stopped responding after restarting the car (as the display on the car said to reinitialize steering). Checked the fuse but OK.
    It seems to be intermittently working after restarting the car. If I disconnect it and let it be for a while and connect it again, it responds. I tried this a couple of times and It stops responding after a few restarts of the car.

    Any ideas? Do you think the ECU is failed? My main worry is that: If I get a replacement ECU: If I then still will have the 614A error code - how do I correct this? 614A might be also due to a water corrosioned ECU? How do I calibrate the motor position angle?
    Nothing else had been done to the car according to the owner. The message had just poped up (probably because of the water/failed ECU).
    Last edited by ulflun; 08-15-2018 at 04:29 PM.

  2. #2
    Join Date
    Aug 2018
    Location
    Gothenburg, Sweden
    Posts
    3
    My Cars
    E60 530i 2004
    The ECU seemed to be replaced some time as well? The car is manufactured 2004-03 and the ECU 2005-03.



  3. #3
    Join Date
    Jul 2004
    Location
    Houston, TX
    Posts
    12,462
    My Cars
    36 Cylinders
    If you had water damage, replace the ecu.

    Corrosion can cause invisible damage due to shorts when it was wet.
    -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
    Aug 2018
    Location
    Gothenburg, Sweden
    Posts
    3
    My Cars
    E60 530i 2004
    Quote Originally Posted by 328 Power 04 View Post
    If you had water damage, replace the ecu.

    Corrosion can cause invisible damage due to shorts when it was wet.
    I will try this. My ECU says:
    Code:
    1 277 022 056
    040325 1279H5646
    48325 7441 0447
    Do I have to replace it with the same OE number, I've seen used ones on Ebay e.g. with the same code "1279H5646" but most of them are other revisions, even if 1 277 022 056 is the same.
    However, the TIS service manual says its been replaced by:
    Code:
    32 43 6 772 742 production
    2    32 43 6 769 489    04.10.2005
    3    32 43 6 768 964    13.07.2005
    4    32 43 6 768 512    24.08.2004
    5    32 43 6 767 245    16.03.2004
    6    32 43 6 767 199    19.11.2003
    7    32 43 6 766 464    05.01.2004
    Last edited by ulflun; 08-16-2018 at 03:23 PM.

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