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Thread: A6 01220 - Rear Side Airbag Igniter; Passenger Side (N202) 002 - Lower Limit Exceeded

  1. #1
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    A6 01220 - Rear Side Airbag Igniter; Passenger Side (N202) 002 - Lower Limit Exceeded

    A6 C6 4F 2006 Australia
    I removed rear seat base cushion to access fuel pump connections under seat to replace fuel lines.
    On reinstalling seat cushion I now have the Air Bag light on with the following VCDS Fault Coding

    Monday,16,September,2019,13:09:12:28258
    VCDS Version: Release 19.6.1 (x64) Running on Windows 10 x64
    www.Ross-Tech.com

    Address 15: Airbags Labels: 4F0-910-655-8R.CLB
    Control Module Part Number: 4F0 910 655 E HW: 4F0 959 655 B
    Component and/or Version: 4F AIRBAG AUDI8RH29 0280
    Software Coding: 0013382
    Work Shop Code: WSC 02325 785 00200
    VCID: 290FFC4915FFC46FBD7-807C
    1 Fault Found:

    01220 - Rear Side Airbag Igniter; Passenger Side (N202)
    002 - Lower Limit Exceeded - MIL ON

    I have not been able to reset the fault code using VCDS.
    There are two airbag sensor/switches at the rear base of the seat and I believe it to be the left one on a right hand drive vehicle.
    Both appear in good condition however the left one moves more on its mounting frame.
    Has anyone else had a similar issue after removing the rear seat.
    A Google search has not really identified any cause or solution.

    Vehicle scan Below

    Code:
    Monday,16,September,2019,09:40:34:28258
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
    VCDS Version: 19.6.1.0 (x64)  HEX-V2 CB: 0.4508.4
    Data version: 20190529 DS308.0
    www.Ross-Tech.com
    
    
    VIN: WAUZZZ4F07N011459   License Plate: 
    
    
    Chassis Type: 4F (4F0)
    Scan: 01 02 03 05 07 08 09 0E 15 16 17 19 37 42 46 47 4F 52 53 56
              61 62 72 76 77
    
    VIN: WAUZZZ4F07N011459   Mileage: 139020km-86383miles
    
    00-Steering Angle Sensor -- Status: OK 0000
    01-Engine -- Status: Malfunction 0010
    02-Auto Trans -- Status: OK 0000
    03-ABS Brakes -- Status: OK 0000
    05-Acc/Start Auth. -- Status: OK 0000
    07-Control Head -- Status: OK 0000
    08-Auto HVAC -- Status: OK 0000
    09-Cent. Elect. -- Status: OK 0000
    0E-Media Player 1 -- Status: OK 0000
    15-Airbags -- Status: Malfunction 0010
    16-Steering wheel -- Status: OK 0000
    17-Instruments -- Status: OK 0000
    19-CAN Gateway -- Status: OK 0000
    25-Immobilizer -- Status: OK 0000
    37-Navigation -- Status: OK 0000
    42-Door Elect, Driver -- Status: OK 0000
    46-Central Conv. -- Status: OK 0000
    47-Sound System -- Status: OK 0000
    4F-Centr. Electr. II -- Status: OK 0000
    52-Door Elect, Pass. -- Status: OK 0000
    53-Parking Brake -- Status: OK 0000
    56-Radio -- Status: OK 0000
    61-Battery Regul. -- Status: OK 0000
    62-Door, Rear Left -- Status: OK 0000
    72-Door, Rear Right -- Status: OK 0000
    76-Park Assist -- Status: OK 0000
    77-Telephone -- Status: OK 0000
    -------------------------------------------------------------------------------
    Address 01: Engine (AUK)       Labels:. 06E-910-559-BKH.clb
       Part No SW: 4F1 910 559 R    HW: 4F1 907 559 D
       Component: 3.2l V6 FSI         0020  
       Revision: --H19---    Serial number:               
       Coding: 01050003190F0120
       Shop #: WSC 02325 785 00200
       VCID: 3A2D3305E0597FF7C4D-806E
    
    1 Fault Found:
    012425 - Signal Line for Fuel Pump Electronics 
                   P3089 - 007 - Electrical Malfunction - Intermittent
                 Freeze Frame:
                        Fault Status: 00100010
                        Fault Priority: 2
                        Fault Frequency: 4
                        Reset counter: 38
                        Mileage: 139001 km
                        Time Indication: 0
    
                 Freeze Frame:
                        RPM: 0 /min
                        Mass Air / Rev.: 0.0 mg/str
                        Temperature: 43.5°C
                            Engine Off
                        Pressure: 0.7 bar
                        Speed: 0.0 km/h
    
    Readiness: 0000 0000
    
    -------------------------------------------------------------------------------
    Address 02: Auto Trans        Labels: 09L-927-760.lbl
       Part No SW: 4F2 910 156 G    HW: 09L 927 156 C
       Component: AG6 09L 3.2 FSI RdW 0010  
       Revision: --H01---    Serial number:        4190458
       Coding: 0000001
       Shop #: WSC 02325 785 00200
       VCID: 290FFC4915FFC46FBD7-807C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 4F0-910-517.clb
       Part No SW: 4F0 910 517 AD    HW: 4F0 614 517 AA
       Component: ESP8 quattro    H01 0060  
       Revision: 00000000    Serial number: 00000000000000
       Coding: 0020895
       Shop #: WSC 02325 785 00200
       VCID: 6695B775C4612B17505-8032
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 05: Acc/Start Auth.        Labels:. 4F0-910-852.clb
       Part No SW: 4F0 910 852     HW: 4F0 905 852 B
       Component: FBSAUDIC6 ELV   H31 0210  
       Revision: 27120501    Serial number: 10601000446366
       Coding: 0000023
       Shop #: WSC 02323 785 00200
       VCID: 6393AE6137535E3FB7B-8036
    
       Subsystem 1 - Part No: 4F0 910 131 C
       Component: FBSAUDIC6 EZS   H45 0080
    
       Subsystem 2 - Part No: 4F0 910 335 
       Component: FBSAUDIC6 KSG   H27 0080
    
       Subsystem 3 - Part No: 4F0 910 220 F
       Component: FBSAUDIC6 IDG   H01 0060
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 07: Control Head        Labels: 4F0-910-7xx-07-H.clb
       Part No SW: 4F0 910 731 D    HW: 4E0 035 729 
       Component: Interfacebox    H43 2830  
       Revision: 00000000    Serial number: 350ET067690907
       Coding: 0000002
       Shop #: WSC 02335 785 00200
       VCID: 2313EE6177D31E3FF7B-8076
    
       Subsystem 1 - Part No: 4F0 910 609 E
       Component: Bedienteil MMIC6H02 0060
    
       Subsystem 2 - Serial number: 00000000429279
    
       Subsystem 3 - Serial number: 0130.05.060000000100010553ÿ
    
       Subsystem 4 - Serial number: 010553ÿ
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC        Labels: 4F0-910-043.clb
       Part No SW: 4F0 910 043     HW: 4F2 820 043 M
       Component: KLIMABETAETIGUNGH20 0170  
       Revision: 00000030    Serial number: 00000030129589
       Coding: 0533574
       Shop #: WSC 02325 785 00200
       VCID: 5BE396810F2366FFFFB-800E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect.        Labels: 4F0-910-279.lbl
       Part No SW: 4F0 910 279 L    HW: 4F0 907 279 B
       Component: ILM Fahrer      H17 0240  
       Revision: 00000000    Serial number: 4F0907279     
       Coding: 0000101
       Shop #: WSC 02335 785 00200
       VCID: 323D1B25382987B70CD-8066
    
       Subsystem 1 - Part No: 4F2 910 113 A
       Component: Wischer AudiC6  H04 0190  
       Coding: 00064784
       Shop #: WSC 02335  
    
       Subsystem 2 - Part No: 4E0 910 557 A  Labels: 8K0-955-559.CLB
       Component: REGENLICHTSENSORH12 0090  
       Coding: 00146221
       Shop #: WSC 02335  
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 0E: Media Player 1        Labels: 4E0-910-111.lbl
       Part No SW: 4E0 910 111 F    HW: 4E0 035 111 A
       Component: CD-Changer      H44 0470  
       Revision: 00000000    Serial number: AUZ5ZBF8127872
       Shop #: WSC 00000 000 00000
       VCID: 1C61D59D4AAD21C7361-8048
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 4F0-910-655-8R.clb
       Part No SW: 4F0 910 655 E    HW: 4F0 959 655 B
       Component: 4F AIRBAG AUDI8RH29 0280  
       Revision: 08H29000    Serial number: 0037LD0EZU5%  
       Coding: 0013382
       Shop #: WSC 02325 785 00200
       VCID: 290FFC4915FFC46FBD7-807C
    
       Subsystem 1 - Serial number: 6332CSME0F4D196BK
    
       Subsystem 2 - Serial number: 6342CSME0F4D1942A
    
       Subsystem 3 - Serial number: 6352QSME1002503B%
    
       Subsystem 4 - Serial number: 6362QSME100936614
    
       Subsystem 5 - Serial number: 63734SME105A3831W
    
       Subsystem 6 - Serial number: 63834SME0E6E03095
    
    1 Fault Found:
    01220 - Rear Side Airbag Igniter; Passenger Side (N202) 
                002 - Lower Limit Exceeded - MIL ON
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel        Labels: 4F0-910-549.lbl
       Part No SW: 4F0 910 549     HW: 4F0 953 549 A
       Component: Lenksäulenmodul H08 0230  
       Revision: 00H08000    Serial number: 90026061510265
       Coding: 0102141
       Shop #: WSC 02323 785 00200
       VCID: 6695B775C4612B17505-8032
    
       Subsystem 1 - Part No: XXXXXXXXXXX 
       Component: Lenkradmodul    H07 0090
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 4F0-910-xxx-17.lbl
       Part No SW: 4F0 910 900 C    HW: 4F0 920 901 B
       Component: KOMBIINSTR. M73 H12 0070  
       Revision: 00100000    Serial number: 58T149X56     
       Coding: 2049743
       Shop #: WSC 07484 002 1048576
       VCID: 2019E16D66C50527EA9-8074
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway        Labels:. 4F0-910-468.clb
       Part No SW: 4F0 910 468 A    HW: 4F0 907 468 D
       Component: Gateway         H11 0070  
       Revision: 11          Serial number: 130080660380B7
       Coding: ECFE53C41B3104
       Shop #: WSC 22050 822 66649
       VCID: 270BFA7103EBF21FAB3-8072
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 37: Navigation        Labels: 4E0-910-88x-37.lbl
       Part No SW: 4E0 910 888 J    HW: 4E0 919 887 D
       Component: MNS ECE         H47 1040  
       Revision: 00000000    Serial number: 364EP067560605
       Shop #: WSC 22050 822 66649
       VCID: 35372039C947908F29F-8060
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver        Labels: 4F0-910-793-42.lbl
       Part No SW: 4F0 910 793 E    HW: 4F0 959 793 E
       Component: TSG FA          H12 0120  
       Revision: 00000000    Serial number: X•d
       Coding: 0016922
       Shop #: WSC 02327 785 00200
       VCID: 2C01055D1A0DD147461-8078
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 46: Central Conv.        Labels:. 4F0-910-289.lbl
       Part No SW: 4F0 910 289 G    HW: 4F0 907 289 G
       Component: Komfortgeraet   H22 0170  
       Revision: 01700022    Serial number: 01014147500000
       Coding: 0263565
       Shop #: WSC 20110 822 84911
       VCID: 2E050F552C11A357685-807A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 47: Sound System        Labels: 4F0-910-223-AS.lbl
       Part No SW: 4F0 910 223 G    HW: 4F0 035 223 
       Component: Amp.-ASK        H10 0350  
       Revision: 43S00001    Serial number: 00606060289420
       Coding: 0000007
       Shop #: WSC 02335 785 00200
       VCID: 221DEB6568C91737FCD-8076
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 4F: Centr. Electr. II        Labels: 4F0-910-280.lbl
       Part No SW: 4F0 910 280     HW: 4F0 907 280 A
       Component: ILM Beifahrer   H10 0080  
       Revision:             Serial number: 00000000245085
       Coding: 0001014
       Shop #: WSC 02323 785 00200
       VCID: 5EE59F951C3173D7985-800A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 52: Door Elect, Pass.        Labels: 4F0-910-793-52.lbl
       Part No SW: 4F0 910 793 E    HW: 4F0 959 792 E
       Component: TSG BF          H12 0120  
       Revision: 00000000    Serial number: &Pe
       Coding: 0016922
       Shop #: WSC 02327 785 00200
       VCID: 2C01055D1A0DD147461-8078
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 53: Parking Brake        Labels: 4F0-910-801.clb
       Part No SW: 4F0 910 801 B    HW: 4F0 907 801 A
       Component: EPB  CB4C0060   H04 0060  
       Revision: --H04---    
       Coding: 0005021
       Shop #: WSC 02324 785 00200
       VCID: 1F1BE2915BBB3ADFD33-804A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 56: Radio        Labels: 4E0-910-541.lbl
       Part No SW: 4E0 910 541 M    HW: 4F0 035 541 E
       Component: TUNER EU/US/RDW H42 0570  
       Revision: 00000000    Serial number: 352ES067653932
       Coding: 0000001
       Shop #: WSC 02323 785 00200
       VCID: 2A0D034510F9CF77B4D-807E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 61: Battery Regul.        Labels: 4F0-910-181.lbl
       Part No SW: 4F0 910 181 E    HW: 4F0 915 181 A
       Component: J0644 BEM       H12 0590  
       Revision: 00000000    Serial number: 00000000046577
       Shop #: WSC 20110 822 84911
       VCID: 2313EE6177D31E3FF7B-8076
    
       Subsystem 1 - Part No: 4F0 915 105 D
       Component: von VA0  2606021515       
       Coding: 344630393135313035442056413032363036303231353135
       Shop #: WSC 00000 384 00290
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 62: Door, Rear Left        Labels: 4F0-910-795.lbl
       Part No SW: 4F0 910 795 E    HW: 4F0 959 795 E
       Component: TSG HL          H21 0050  
       Coding: 0016386
       Shop #: WSC 02327 785 00200
       VCID: 2E050F552C11A357685-807A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 72: Door, Rear Right        Labels: 4F0-910-795.lbl
       Part No SW: 4F0 910 795 E    HW: 4F0 959 794 E
       Component: TSG HR          H21 0050  
       Coding: 0016386
       Shop #: WSC 02327 785 00200
       VCID: 2E050F552C11A357685-807A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 76: Park Assist        Labels: 4Fx-910-283.lbl
       Part No SW: 4F0 910 283 E    HW: 4F0 919 283 E
       Component: Parkhilfe 8-Kan H12 0030  
       Revision: 00H12000    Serial number: 11820615200508
       Coding: 0201006
       Shop #: WSC 131071 1023 2097151
       VCID: 2615F77504E1EB17905-8072
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 77: Telephone        Labels: 4E0-910-336.lbl
       Part No SW: 4E0 910 336 H    HW: 4E0 862 335 
       Component: Handyvorb2      H13 0700  
       Revision: 00000000    Serial number: 00000007542638
       Coding: 0010990
       Shop #: WSC 02335 785 00200
       VCID: 270BFA7103EBF21FAB3-8072
    
    No fault code found.
    
    End----(Elapsed Time: 02:21, VBatt start/end: 11.7V/11.7V. VIgn 11.7V)-----
    Last edited by acseymour; 09-16-2019 at 09:16 PM.

  2. #2
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    I once had a problem similar to this on a seat arona. After clearing faults the airbag light kept coming on the next day.
    After a week or so i found the problem to be the wiring for the ignitor was jammed inbetween the cusion.
    Follow the wiring to make sure nothing is in the way. Very sensative those

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  4. #3
    Ross-Tech Employee Jef's Avatar
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    Often times there is a shunt on the wiring harness connector (control module side) so that when you unplug bang bang bags, the shut shorts the wires together so there is no chance of static. My first guess is when you plugged things back up, that shunt didn't get popped up as it should and is still shorting the wires together, hence "lower limit exceeded". Try to unplug and replug the connector.

    You can also view live data for the N202, wiggle the wiring and connector around and see if the data changes in real time. Look in MVB 005. Should read something like "OK", but I suspect you will find "Too Low" until you sort it out.
    Jef
    Ross Tech Support Team, Alpha Squad
    Auto-Scan, learn it, love it, live it... then check the fuses.

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  6. #4
    Verified VCDS User
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    Thanks for the input on the lower limit exceed code
    On this model car the rear seat occupied sensor/or rear airbag connector is attached to the floor pan rear seat backing pan on the seat back mounting frame wire/rod so no electrical harness is unplugged to remove the rear seat, non heated rear seat as well.
    So I removed the rear seat again and checked the connections on both sides, wiggled and pressed the connector on the left side (passenger in Australia).
    Then reinstalled seat base, paying attention to location of sensors/connector on both sides to make sure they were in contact with seat base by pushing seat cushion firmly over where the sensor is located after visually checking by pulling the seat base seam out to check sensor/connector location.
    Then used VCDS to reset code.
    Code reset OK and light has not come back on yet.
    I will advise if this changes.
    When I originally reinstalled the seat I did sit in the seat and bounced around to see if this would help but it did not so I think the firmly pushing the seat cushion over the sensor/connector after checking location has helped in this case as well a moving the connection plug halves around.
    I can not see in the parts catalog for the car if it is a connector or sensor at this location so not sure of full function of the electrical component in this location, however it appears to generate a code if it is not functioning correctly.
    The reason I think it may have some sensing function is the way the electrical component is held in a specific position by a metal bracket near the seat base junction with the seat back.
    Last edited by acseymour; 09-17-2019 at 12:19 AM.

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