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Thread: 28823 No communications with airbag control module (U0151)

  1. #1
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    Red face 28823 No communications with airbag control module (U0151)

    Hi, guys this is my first post here on the forum, I am looking for some advice on an issue with an intermittent fault 28823 No communications with airbag control module (U0151) code that has appeared ever since my local VW dealership changed my complete engine, cat converter, pre-cat down pipe, fuel injectors, pre & post cat lambda sensors, fuel filter (these were changed because the dealer used the wrong oil grade in my engine and seriously ?#?#?# it up!). The fault code has appeared under the engine module and no other fault codes in any other module are present. It appears to be intermittent and my initial thoughts are a connection issue?

    First the auto-scan data:-

    Code:
    Tuesday,13,October,2015,14:17:12:64326
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 8.1 x64
    VCDS Version: 15.7.1.0 (x64)
    Data version: 20150904
    www.Ross-Tech.com
    
    
    VIN: WVWZZZ1KZ8Wxxxxxx License Plate:
    Mileage: 54950km-34144mi Repair Order: 
    
    
    
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    
    
    Chassis Type: 1K (1K0)
    Scan: 01 03 08 09 15 16 17 19 25 42 44 46 52 56
    
    VIN: WVWZZZ1KZ8W169542 Mileage: 54950km-34144miles
    
    01-Engine -- Status: Malfunction 0010
    03-ABS Brakes -- Status: OK 0000
    04-Steering Angle -- Status: OK 0000
    08-Auto HVAC -- Status: OK 0000
    09-Cent. Elect. -- Status: OK 0000
    15-Airbags -- Status: OK 0000
    16-Steering wheel -- Status: OK 0000
    17-Instruments -- Status: OK 0000
    19-CAN Gateway -- Status: OK 0000
    25-Immobilizer -- Status: OK 0000
    42-Door Elect, Driver -- Status: OK 0000
    44-Steering Assist -- Status: OK 0000
    46-Central Conv. -- Status: OK 0000
    52-Door Elect, Pass. -- Status: OK 0000
    56-Radio -- Status: OK 0000
     
    -------------------------------------------------------------------------------
    Address 01: Engine Labels: 03C-906-024-BXW.lbl
       Part No SW: 03C 906 024 AS HW: 03C 906 024 AS
       Component: MARELLI 4HV 0917  
       Revision: --H06--- Serial number: VWX7Z0GN3N68QU
       Coding: 0004071
       Shop #: WSC 00000 028 00001
       VCID: 6FC3201D7E664A46B4-803A
    
    1 Fault Found:
    28823 - No Communications with Airbag Control Module 
                U0151 - 000 - - Intermittent
                 Freeze Frame:
                        Fault Status: 00110000
                        Fault Priority: 1
                        Fault Frequency: 1
                        Reset counter: 23
                        Mileage: 54501 km
                        Time Indication: 0
                        Date: 2000.01.01
                        Time: 15:14:48
    
    Readiness: 0000 0000
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes Labels: 1K0-907-379-MK60-F.lbl
       Part No SW: 1K0 907 379 AC HW: 1K0 907 379 AC
       Component: ESP FRONT MK60 0101  
       Revision: 00H11001    
       Coding: 0019073
       Shop #: WSC 01279 785 00200
       VCID: 73CB2C6D124E6EA650-8026
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC Labels: 1K0-820-047.lbl
       Part No SW: 1K0 820 047 HB HW: 1K0 820 047 HB
       Component: Climatic PQ35 141 1010  
       Revision: 00141028 Serial number: 00000000000000
       Shop #: WSC 00000 000 00000
       VCID: 6BFB340D4A7EB66698-803E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect. Labels: 3C0-937-049-30-M.lbl
       Part No SW: 3C0 937 049 AH HW: 3C0 937 049 AH
       Component: Bordnetz-SG H54 2202  
       Revision: 00H54000 Serial number: 01000007667786
       Coding: 008D0F2700041500471400001400000000087B075C000100000000000000
       Shop #: WSC 00000 785 00200
       VCID: 6FC3201D7E664A46B4-803A
    
       Subsystem 1 - Part No: 1K2 955 119 E Labels: 1KX-955-119.CLB
       Component: Wischer 081107 021 0501  
       Coding: 00038805
       Shop #: WSC 00000  
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags Labels: 1K0-909-605.lbl
       Part No SW: 1K0 909 605 T HW: 1K0 909 605 T
       Component: 38 AIRBAG VW8 020 2300  
       Revision: 05020000 Serial number: 0038PD1KT2Y6  
       Coding: 0013112
       Shop #: WSC 01269 785 00200
       VCID: 3D5FCA55648AE8D676-8068
    
       Subsystem 1 - Serial number: 6332MSME297438127
    
       Subsystem 2 - Serial number: 6342MSME333577459
    
       Subsystem 3 - Serial number: 6352QSME44797733L
    
       Subsystem 4 - Serial number: 6362QSME3D731617J
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel Labels: 1K0-953-549-MY8.lbl
       Part No SW: 1K0 953 549 BB HW: 1K0 953 549 BB
       Component: Lenksäulenmodul 636 0070  
       Coding: 0000002
       Shop #: WSC 01279 785 00200
       VCID: 73CB2C6D124E6EA650-8026
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments Labels: 1K0-920-xxx-17.lbl
       Part No SW: 1K0 920 954 K HW: 1K0 920 954 K
       Component: KOMBIINSTRUMENT VDD 1212  
       Revision: V0002000 Serial number: VWX7Z0GN3N68QU
       Coding: 0003403
       Shop #: WSC 00225 210 99164
       VCID: 3449EF7157C0299E89-8060
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway Labels: 1K0-907-530-V3.clb
       Part No SW: 1K0 907 530 L HW: 1K0 907 951 
       Component: J533__Gateway H15 0180  
       Revision: H15 Serial number: 1400K077258301
       Coding: E9801F060002020003
       Shop #: WSC 01279 785 00200
       VCID: 3041E361A3D815BEED-8064
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 25: Immobilizer Labels: 1K0-920-xxx-25.clb
       Part No SW: 1K0 920 954 K HW: 1K0 920 954 K
       Component: IMMO VDD 1212  
       Revision: V0002000 Serial number: VWX7Z0GN3N68QU
       Shop #: WSC 00000 000 00000
       VCID: 3449EF7157C0299E89-8060
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver Labels: 1K0-959-701-MIN3.lbl
       Part No SW: 1K0 959 701 M HW: 1K0 959 701 M
       Component: Tuer-SG 006 1204  
       Coding: 0000564
       Shop #: WSC 01279 785 00200
       VCID: 3851DB414BA8CDFEA5-806C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 44: Steering Assist Labels: 1Kx-909-14x-44.clb
       Part No: 1K2 909 144 M
       Component: EPS_ZFLS Kl.067 H08 1901  
       Shop #: WSC 00000 028 00001
       VCID: 364DD57941BC3B8EB7-8062
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 46: Central Conv. Labels: 1K0-959-433-MIN.clb
       Part No: 1K0 959 433 CP
       Component: KSG 0401  
       Coding: 80C802087F2D8405485B038010CC
       Shop #: WSC 00225 210 91070
       VCID: 002173A153F8453E5D-8054
    
       Subsystem 1 - Component: Sounder n.mounted     
    
       Subsystem 2 - Component: NGS n.mounted     
    
       Subsystem 3 - Component: IRUE n.mounted     
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 52: Door Elect, Pass. Labels: 1K0-959-702-MIN3.lbl
       Part No SW: 1K0 959 702 M HW: 1K0 959 702 M
       Component: Tuer-SG 006 1204  
       Coding: 0000564
       Shop #: WSC 01279 785 00200
       VCID: 3957DE4570A2D4F65A-806C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 56: Radio Labels: 1K0-035-1xx-56.lbl
       Part No SW: 1K0 035 186 AD HW: 1K0 035 186 AD
       Component: Radio BVX 037 0048  
       Revision: 00037000 Serial number: VWZ1Z2G6326202
       Coding: 0020400
       Shop #: WSC 01279 785 00200
       VCID: 68F14B015B889D7EF5-803C
    
    No fault code found.
    
    End-------------------------(Elapsed Time: 00:59)--------------------------
    Last edited by Uwe; 10-14-2015 at 02:48 PM. Reason: CODE tags

  2. #2
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    Following on from my initial email to RossTech support, thank you Jef for your initial email and pointers to this forum.

    As suggested, I have had a look at measuring block 126 and the values are:= Airbag 1, Cent. Elec 1. these values remain at 1. I have also noticed that the reset counter has risen to 32. I am assuming that this figure will continue to rise until reaching 255? Am I right in assuming that if it reaches that point without any further fault condition, this would archive this fault and return the log to no fault found?
    What my thought process is, that when the dealership changed the engine, they I assume would have had to disconnect this engines ECU to facilitate the engine change and perhaps some dampness has got into the connection causing this fault, or like I suggested previously perhaps have not connected the harness properly. As this workmanship is under my VW dealerships' 2 year warranty, I might get them to rectify this. But any feedback would still be greatly received, as I am still sceptical of the dealership, after all, they did put the wrong grade of oil in my car to begin with eh?

  3. #3
    VCDS Distributor AIB Wolfgang's Avatar
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    Hello John,
    i would delete the fault, look into MWB 126 in "01" for BUS communication while moving the wiring.
    -Wolfgang

    Drive more talk less

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  5. #4
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    Hi, AIB Wolfgang

    Thanks for your reply. I shall give that a try. I'm assuming that the wiring goes through to the ECU in the engine bay from the airbag control unit inside the vehicle?

    Kind regards
    John

  6. #5
    VCDS Distributor AIB Wolfgang's Avatar
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    Hi John,
    no. All connected to Gateway "19". Try to read the power train bus also in "19".
    -Wolfgang

    Drive more talk less

  7. #6
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    Hi AIB Wolfgang,

    Just a quick update, tried various 'cable wriggling' whilst monitoring measuring block 126, could not get the fault to re appear and the measuring block status remained at 1. Just had my local Volkswgen dealership service the car and run it through its MOT - passed no problems. They looked into the CAN Bus error and couldn't find a fault, so just reset the error code. I will need to keep a close eye on it myself, as not even the VW dealer could find what was throwing up this intermittent error code! I explained to the dealer that I could reset the fault easily myself, what I wanted was an explanation! after collecting my car from the dealership, I have checked it again, they have deleted the fault. Will keep you posted if it returns, which I am sure it will.

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