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Thread: Audi A6 2005 - battery and EPS lights have come on

  1. #1
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    Audi A6 2005 - battery and EPS lights have come on

    Good evening

    Whilst out in the car today my battery light came on. I wasn't too far from home so decided to continue. I turned off the heated seats etc to reduce the load and also monitored the battery level on the MMI (it stayed at 100% although I wonder how accurate it is). About five minutes later the EPS light also came on. As I got near to home both lights went out!

    I put a multi-meter on the battery once at home - it was showing 13.8 v at idle and 13.5 v with all the electrical equipment on.

    The VCDS scan is below. I assume the issues I experienced relate to the issues that are logged from today:
    - 053255 - Please check Fault Memory in Battery Monitoring Module
    - 009783 - Torque Management Feedback Signal A
    - 18265 - Load Signal
    - 02252 - Generator (looking at the times this seemed to happen first)
    - 02479 - Partial Consumer Shut-Off Active

    I'd appreciate any thoughts on what might be wrong. Some research suggests it might be the regulator?

    Thanks

    Code:
    Saturday,16,November,2019,13:02:07:57775
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
    VCDS Version: 19.6.1.0 (x64)  HEX-V2 CB: 0.4505.4
    Data version: 20190529 DS308.0
    www.Ross-Tech.com
    
    
    VIN: WAUZZZ4F96N032034   License Plate: 
    Mileage: 261010km-162184mi   Repair Order: 
    
    
    
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    
    
    Chassis Type: 4F (4F0)
    Scan: 01 02 03 05 07 08 09 0E 15 16 17 19 37 42 46 47 4F 52 53 55
              56 61 62 69 72 76 77
    
    VIN: WAUZZZ4F96N032034   Mileage: 261010km-162184miles
    
    00-Steering Angle Sensor -- Status: OK 0000
    01-Engine -- Status: Malfunction 0010
    02-Auto Trans -- Status: Malfunction 0010
    03-ABS Brakes -- Status: Malfunction 0010
    05-Acc/Start Auth. -- Status: Malfunction 0010
    07-Control Head -- Status: OK 0000
    08-Auto HVAC -- Status: Malfunction 0010
    09-Cent. Elect. -- Status: OK 0000
    0E-Media Player 1 -- 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: Malfunction 0010
    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
    55-Headlight Range -- Status: Malfunction 0010
    56-Radio -- Status: OK 0000
    61-Battery Regul. -- Status: Malfunction 0010
    62-Door, Rear Left -- Status: OK 0000
    69-Trailer -- Status: OK 0000
    72-Door, Rear Right -- Status: OK 0000
    76-Park Assist -- Status: OK 0000
    77-Telephone -- Status: OK 0000
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels: User\059-907-401-ASB.clb
       Part No SW: 4F0 910 401 A    HW: 4F0 907 401 B
       Component: 3.0L V6TDI  G000AG  0020  
       Revision: --H01---    Serial number:               
       Coding: 0011372
       Shop #: WSC 00656 210 83209
       VCID: 1A6EDA72E091A32724D-804E
    
    2 Faults Found:
    004118 - Valve for Air Filter Bypass Flap (N275) 
                   P1016 - 001 - Open Circuit
                 Freeze Frame:
                        Fault Status: 01110001
                        Fault Priority: 0
                        Fault Frequency: 1
                        Reset counter: 255
                        Time Indication: 0
    
                 Freeze Frame:
                        RPM: 0 /min
                        Torque: 269.1 Nm
                        Speed: 0.0 km/h
                        Temperature: 7.2°C
                        Temperature: 9.9°C
                        Mass Air / Rev.: 0.0 mg/str
                        Mass Air / Rev.: 0.0 mg/str
    
    053255 - Please check Fault Memory in Battery Monitoring Module 
                   U1007 - 001 -  - Intermittent
                 Freeze Frame:
                        Fault Status: 00110001
                        Fault Priority: 0
                        Fault Frequency: 1
                        Reset counter: 255
                        Mileage: 261003 km
                        Time Indication: 0
                        Date: 2019.11.16
                        Time: 11:52:37
    
                 Freeze Frame:
                        RPM: 1344 /min
                        Torque: 113.1 Nm
                        Speed: 57.1 km/h
                        (no units): 943.5
                        Voltage: 11.32 V
                        Temperature: 7.2°C
                        (no units): 4.0
    
    Readiness: 0 0 0 0 0 
    
    -------------------------------------------------------------------------------
    Address 02: Auto Trans        Labels: 09L-927-760.lbl
       Part No SW: 4F1 910 156 B    HW: 09L 927 156 A
       Component: AG6 09L 3.0lTDI RdW 0030  
       Revision: --H01---    Serial number:        4042590
       Coding: 0000001
       Shop #: WSC 02325 785 00200
       VCID: 2310E796D7DBE2EFF7B-8076
    
    1 Fault Found:
    009783 - Torque Management Feedback Signal A 
                   P2637 - 000 -  - Intermittent
                 Freeze Frame:
                        Fault Status: 00100000
                        Fault Priority: 0
                        Fault Frequency: 1
                        Reset counter: 40
                        Mileage: 261003 km
                        Time Indication: 0
                        Date: 2019.11.16
                        Time: 11:52:39
    
                 Freeze Frame:
                        RPM: 1312 /min
                        RPM: 1280 /min
                        RPM: 1472 /min
                        (no units): 37.0
                        (no units): 25.0
                        Temperature: 52.0°C
                        T.B. Angle: 7.8°
    
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 4F0-910-517.clb
       Part No SW: 4F0 910 517 L    HW: 4F0 614 517 L
       Component: ESP 8.0 quattro H03 0090  
       Revision: 00000000    Serial number: 00000000000000
       Coding: 0004488
       Shop #: WSC 02325 785 00200
       VCID: 2D0401AE811F249F51F-8078
    
    1 Fault Found:
    18265 - Load Signal 
                P1857 - 000 - Error Message from ECU - Intermittent
                 Freeze Frame:
                        Fault Status: 00100000
                        Fault Priority: 3
                        Fault Frequency: 1
                        Reset counter: 87
                        Mileage: 261003 km
                        Time Indication: 0
                        Date: 2019.11.16
                        Time: 11:52:37
    
                 Freeze Frame:
                        Hex Value: 0x3A00
                        Hex Value: 0x4006
                        Hex Value: 0x0028
                        Hex Value: 0x018D
                        Hex Value: 0x00FF
    
    
    -------------------------------------------------------------------------------
    Address 05: Acc/Start Auth.        Labels:. 4F0-910-852.clb
       Part No SW: 4F0 910 852     HW: 4F0 905 852 B
       Component: FBSAUDIC6 ELV   H30 0220  
       Revision: 31050601    Serial number: 10600300187560
       Coding: 0000147
       Shop #: WSC 00656 210 83209
       VCID: 6390A796975BA2EFB7B-8036
    
       Subsystem 1 - Part No: 4F0 910 131 E
       Component: FBSAUDIC6 EZS   H44 0070
    
       Subsystem 2 - Part No: 4F0 910 220 D
       Component: FBSAUDIC6 IDG   H39 0040
    
    1 Fault Found:
    00956 - Key 2 
                002 - Lower Limit Exceeded - Intermittent
                 Freeze Frame:
                        Fault Status: 00110010
                        Fault Priority: 3
                        Fault Frequency: 2
                        Reset counter: 86
                        Mileage: 260899 km
                        Time Indication: 0
                        Date: 2019.11.10
                        Time: 18:12:35
    
    
    -------------------------------------------------------------------------------
    Address 07: Control Head        Labels: 4F0-910-7xx-07-H.clb
       Part No SW: 4F0 910 730 F    HW: 4E0 035 729 
       Component: Interfacebox    H43 2120  
       Revision: 00000000    Serial number: 350FR057568631
       Coding: 0001002
       Shop #: WSC 02335 785 00200
       VCID: 2412E48AD2D5E5D78E1-8070
    
       Subsystem 1 - Part No: 4F0 910 609 B
       Component: Bedienteil MMIC6H03 0010
    
       Subsystem 2 - Serial number: 00000000174279
    
       Subsystem 3 - Serial number: 0107.06.050000000100010725ÿ
    
       Subsystem 4 - Serial number: 010725ÿ
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC        Labels: 4F0-910-043.clb
       Part No SW: 4F0 910 043     HW: 4F2 820 043 J
       Component: KLIMABETAETIGUNGH12 0160  
       Revision: 00000027    Serial number: 00000000148896
       Coding: 0001302
       Shop #: WSC 02325 785 00200
       VCID: 5BE09F76AF2B9A2FFFB-800E
    
    1 Fault Found:
    01274 - Air Flow Flap Positioning Motor (V71) 
                003 - Mechanical Failure
                 Freeze Frame:
                        Fault Status: 01100011
                        Fault Priority: 3
                        Fault Frequency: 49
                        Reset counter: 47
                        Mileage: 260699 km
                        Time Indication: 0
                        Date: 2019.11.07
                        Time: 15:50:58
    
                 Freeze Frame:
                        Voltage: 13.50 V
                        Temperature: 13.0°C
                        (no units): 212.0
                        (no units): 217.0
                        Temperature: 9.0°C
    
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect.        Labels: 4F0-910-279.lbl
       Part No SW: 4F0 910 279     HW: 4F0 907 279 
       Component: ILM Fahrer      H14 0080  
       Revision: 00000000    Serial number: 4F0907279     
       Coding: 0002121
       Shop #: WSC 02335 785 00200
       VCID: 6696BE826469D7C7505-8032
    
       Subsystem 1 - Part No: 4F2 910 113 C  Labels: 1KX-955-119.CLB
       Component: Wischer AudiC6  H11 0040  
       Coding: 00022800
       Shop #: WSC 02335  
    
       Subsystem 2 - Part No: 4E0 910 557   Labels: 8K0-955-559.CLB
       Component: REGENLICHTSENSORH10 0050  
       Coding: 00141886
       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: AUZ5ZBE7177922
       Shop #: WSC 00000 000 00000
       VCID: 1C62DC6AEAA5DD17361-8048
    
    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 0260  
       Revision: 07H29000    Serial number: 0037LD08B5N5  
       Coding: 0013382
       Shop #: WSC 02325 785 00200
       VCID: 290CF5BEB5F738BFBD7-807C
    
       Subsystem 1 - Serial number: 6332CSME0A384F179
    
       Subsystem 2 - Serial number: 6342CSME0A2C7B76H
    
       Subsystem 3 - Serial number: 6352QSME0518293DI
    
       Subsystem 4 - Serial number: 6362QSME05033145%
    
       Subsystem 5 - Serial number: 63734SME02082E43Y
    
       Subsystem 6 - Serial number: 63834SME05192F7DB
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel        Labels: 4F0-910-549.lbl
       Part No SW: 4F0 910 549     HW: 4F0 953 549 B
       Component: Lenksäulenmodul H09 0230  
       Revision: 00H09000    Serial number: 90025080100101
       Coding: 0102142
       Shop #: WSC 00656 210 88563
       VCID: 6696BE826469D7C7505-8032
    
       Subsystem 1 - Part No: XXXXXXXXXXX 
       Component: Lenkradmodul    H07 0080
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 4F0-910-xxx-17.lbl
       Part No SW: 4F0 910 930 A    HW: 4F0 920 980 M
       Component: KOMBIINSTR. M73 H15 0630  
       Revision: 01000000    Serial number: 4PX35PL55     
       Coding: 2049443
       Shop #: WSC 60457 001 1048576
       VCID: 211CED9ECDC7F0FFE57-8074
    
    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         H10 0060  
       Revision: 10          Serial number: 12008055288084
       Coding: EDFE73C41B3104
       Shop #: WSC 02325 785 00200
       VCID: 2708F386A3E30ECFAB3-8072
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 37: Navigation        Labels: 4E0-910-88x-37.lbl
       Part No SW: 4E0 910 887 Q    HW: 4E0 919 887 C
       Component: MNS ECE         H44 0850  
       Revision: 00000000    Serial number: 305EU057594249
       Shop #: WSC 02325 785 00200
       VCID: 3B203FF64F6BBA2FDFB-806E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver        Labels: 4F0-910-793-42.lbl
       Part No SW: 4F0 910 793 B    HW: 4F0 959 793 B
       Component: TSG FA          H11 0040  
       Revision: 00000000    Serial number: ‰3q
       Coding: 0003610
       Shop #: WSC 02327 785 00200
       VCID: 290CF5BEB5F738BFBD7-807C
    
    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   H19 0140  
       Revision: 01400019    Serial number: 01004778620000
       Coding: 0131835
       Shop #: WSC 02335 785 00200
       VCID: 2E0606A28C195F87685-807A
    
       Subsystem 1 - Part No: 1K0 951 605 C
       Component: LIN BACKUP HORN H03 1301
    
       Subsystem 2 - Part No: 4F0 910 177 
       Component: Innenraumueberw.H01 0020
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 47: Sound System        Labels: 4F0-910-223-BO.lbl
       Part No SW: 4F0 910 223 D    HW: 4F0 035 223 D
       Component: DSP-High C6     H09 0170  
       Revision: PROD_01     Serial number: 00000000788056
       Coding: 0000113
       Shop #: WSC 02325 785 00200
       VCID: 1F18EB66FBB3C60FD33-804A
    
    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: 00000000101129
       Coding: 0001103
       Shop #: WSC 02323 785 00200
       VCID: 5EE69662BC398F07985-800A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 52: Door Elect, Pass.        Labels: 4F0-910-793-52.lbl
       Part No SW: 4F0 910 793 B    HW: 4F0 959 792 B
       Component: TSG BF          H11 0040  
       Revision: 00000000    Serial number: "Hq
       Coding: 0003610
       Shop #: WSC 02327 785 00200
       VCID: 290CF5BEB5F738BFBD7-807C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 53: Parking Brake        Labels: 4F0-910-801.clb
       Part No SW: 4F0 910 801     HW: 4F0 907 801 
       Component: EPB  C63C0030   H03 0030  
       Revision: C63C0030    
       Coding: 0000321
       Shop #: WSC 02334 785 00200
       VCID: 5DE4916EB13F941F81F-8008
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 55: Headlight Range        Labels: 8P0-907-357.lbl
       Part No: 8P0 907 357 C
       Component: Dynamische LWR  H01 0010  
       Revision: 00000000    Serial number:               
       Coding: 0000003
       Shop #: WSC 02325 785 00200
       VCID: 3A2E3AF240518327C4D-806E
    
    1 Fault Found:
    00070 - Starting Battery Voltage 
                002 - Lower Limit Exceeded - Intermittent
                 Freeze Frame:
                        Fault Status: 00100010
                        Fault Priority: 2
                        Fault Frequency: 4
                        Reset counter: 33
                        Mileage: 259320 km
                        Time Indication: 0
                        Date: 2019.10.02
                        Time: 18:15:55
    
    
    -------------------------------------------------------------------------------
    Address 56: Radio        Labels: 4E0-910-541.lbl
       Part No SW: 4E0 910 541 L    HW: 4F0 035 541 B
       Component: TUNER EU/US/RDW H42 0560  
       Revision: 00000000    Serial number: 394F/057555766
       Coding: 0000001
       Shop #: WSC 02325 785 00200
       VCID: 290CF5BEB5F738BFBD7-807C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 61: Battery Regul.        Labels: 4F0-910-181.lbl
       Part No SW: 4F0 910 181 F    HW: 4F0 915 181 B
       Component: J0644 BEM       H12 0760  
       Revision: 00000000    Serial number: 00000000137903
       Shop #: WSC 00000 000 00000
       VCID: 2412E48AD2D5E5D78E1-8070
    
       Subsystem 1 - Part No: 4F0 915 105 D
       Component: von VA0  1506010929       
       Coding: 344630393135313035442056413031353036303130393239
       Shop #: WSC 00656 210 83209
    
    2 Faults Found:
    02252 - Generator 
                012 - Electrical Fault in Circuit - Intermittent
                 Freeze Frame:
                        Fault Status: 00101100
                        Fault Priority: 1
                        Fault Frequency: 14
                        Reset counter: 87
                        Mileage: 260981 km
                        Time Indication: 0
                        Date: 2019.11.16
                        Time: 11:33:25
    
    02479 - Partial Consumer Shut-Off Active 
                000 - - - Intermittent
                 Freeze Frame:
                        Fault Status: 00100000
                        Fault Priority: 7
                        Fault Frequency: 1
                        Reset counter: 255
                        Mileage: 260994 km
                        Time Indication: 0
                        Date: 2019.11.16
                        Time: 11:45:16
    
    
    -------------------------------------------------------------------------------
    Address 62: Door, Rear Left        Labels: 4F0-910-795.lbl
       Part No SW: 4F0 910 795     HW: 4F0 959 795 
       Component: TSG HL          H11 0030  
       Coding: 0003074
       Shop #: WSC 02327 785 00200
       VCID: 698CB5BE7577F8BF7D7-803C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 69: Trailer        Labels: 4F0-910-383.lbl
       Part No SW: 4F0 910 383     HW: 4F0 907 383 
       Component: ANHAENGERELEKTR H02 0020  
       Coding: 0000331
       Shop #: WSC 02325 785 00200
       VCID: 629EA2928841ABE7BCD-8036
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 72: Door, Rear Right        Labels: 4F0-910-795.lbl
       Part No SW: 4F0 910 795     HW: 4F0 959 794 
       Component: TSG HR          H11 0030  
       Coding: 0003074
       Shop #: WSC 02327 785 00200
       VCID: 698CB5BE7577F8BF7D7-803C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 76: Park Assist        Labels: 4Fx-910-283.lbl
       Part No SW: 4F0 910 283 C    HW: 4F0 919 283 C
       Component: Parkhilfe 8-Kan H12 0020  
       Revision: 00H12000    Serial number: 11820515401776
       Coding: 0211016
       Shop #: WSC 131071 1023 2097151
       VCID: 2412E48AD2D5E5D78E1-8070
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 77: Telephone        Labels: 4E0-910-336.lbl
       Part No SW: 4E0 910 336 F    HW: 4E0 862 335 
       Component: Handyvorb2      H10 0580  
       Revision: 00000000    Serial number: 00000007558494
       Coding: 0010900
       Shop #: WSC 02335 785 00200
       VCID: 2514F98ED9EF1CDF99F-8070
    
    No fault code found.
    
    End----------(Elapsed Time: 01:50, VBatt start/end: 12.6V/13.9V)-----------

  2. #2
    Benevolent Dictator Uwe's Avatar
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    Yep, if it were mine, I would try to track down "Generator - Electrical Fault in Circuit" first.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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  4. #3
    Verified VCDS User
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    Thanks UWE, I'll explore that issue first.

    Once there's a break in this crappy weather I'll get the car jacked up and see if there's any obvious problems. I think it's the original alternator so I'm hoping it might just need a new regulator. 🤞

  5. #4
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    I would start with the physical connections to the alternator, even before checking the voltage regulator. There's a high probability that you have a loose or corroded connection that is causing a voltage drop.

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  7. #5
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    I'm hoping it might be something that simple - I'll update once I've managed to have a look.

  8. #6
    Verified VCDS User
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    I've finally managed to have a look at the car.

    I'm hoping the cause is the heavily worn brushes I discovered. One of the slip rings is also grey in colour suggesting one of the brushes hasn't been making contact.

    New brushes ordered, I'll update once they're fitted. 🤞

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