28823 No communications with airbag control module (U0151)

   #1  

John22

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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
[url]www.Ross-Tech.com[/url]


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)--------------------------
 
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   #2  

John22

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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?:eek:
 
   #3  

AIB Wolfgang

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Hello John,
i would delete the fault, look into MWB 126 in "01" for BUS communication while moving the wiring.:)
 
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   #4  

John22

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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
 
   #5  

AIB Wolfgang

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Hi John,
no. All connected to Gateway "19". Try to read the power train bus also in "19".
 
   #6  

John22

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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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