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    Thread: ACC fault!

    1. 04-27-2012 09:53 AM #1
      I get a message saying ACC fault!, that deactivates the whole cruisecontrol.

      Got this log
      Wednesday,18,April,2012,21:55:02:21071
      VCDS Version: Release 11.11.3 (x64)
      Data version: 20120401



      --------------------------------------------------------------------------------
      --------------------------------------------------------------------------------


      Chassis Type: 3C0
      Scan: 01 02 03 08 09 10 13 14 15 16 17 18 19 25 2E 37 42 44 46 47
      4F 52 53 55 56 5D 62 65 6C 72 77

      VIN: WVWZZZ3CZ9E562861

      01-Engine -- Status: Malfunction 0010
      02-Auto Trans -- Status: OK 0000
      03-ABS Brakes -- Status: OK 0000
      04-Steering Angle -- Status: OK 0000
      08-Auto HVAC -- Status: OK 0000
      09-Cent. Elect. -- Status: Malfunction 0010
      10-Park/Steer Assist -- Status: OK 0000
      13-Auto Dist. Reg -- Status: Malfunction 0010
      14-Susp. Elect. -- Status: Malfunction 0010
      15-Airbags -- Status: OK 0000
      16-Steering wheel -- Status: OK 0000
      17-Instruments -- Status: OK 0000
      18-Aux. Heat -- Status: Malfunction 0010
      19-CAN Gateway -- Status: OK 0000
      25-Immobilizer -- Status: OK 0000
      2E-Media Player 3 -- Status: OK 0000
      37-Navigation -- Status: Malfunction 0010
      42-Door Elect, Driver -- Status: OK 0000
      44-Steering Assist -- Status: OK 0000
      46-Central Conv. -- Status: Malfunction 0010
      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-Xenon Range -- Status: OK 0000
      56-Radio -- Status: Malfunction 0010
      5D-Operations -- Status: OK 0000
      62-Door, Rear Left -- Status: OK 0000
      65-Tire Pressure -- Status: Malfunction 0010
      6C-Back-up Cam. -- Status: OK 0000
      72-Door, Rear Right -- Status: OK 0000
      77-Telephone -- Status: Malfunction 0010

      -------------------------------------------------------------------------------
      Address 01: Engine (CBB) Labels: 03L-906-022-CBA.clb
      Part No SW: 03L 906 022 QG HW: 03L 907 309
      Component: R4 2,0L EDC F000AG 6212
      Revision: 13H01--- Serial number: VWZCZ000000000
      Coding: 0000078
      Shop #: WSC 84224 928 600520
      VCID: 7AF00E4C35C4789

      1 Fault Found:
      053283 - Please Check Fault Codes in Control Module for Automatic Distance Regulation
      U1023 - 000 - - Intermittent
      Freeze Frame:
      Fault Status: 00100000
      Fault Priority: 6
      Fault Frequency: 8
      Mileage: 55781 km
      Time Indication: 0
      Date: 2097.14.21
      Time: 06:37:41

      Freeze Frame:
      RPM: 1978 /min
      Speed: 101.0 km/h
      (no units): 0.00
      (no units): -0.40
      (no units): 0.0
      Bin. Bits: 00000110
      (no units): 0.0

      Readiness: 0 0 0 0 0

      -------------------------------------------------------------------------------
      Address 02: Auto Trans Labels: 02E-300-0xx.lbl
      Part No SW: 02E 300 051 T HW: 02E 927 770 AJ
      Component: GSG DSG AG6 431 1912
      Revision: 04843012 Serial number: 00000805210504
      Coding: 0000020
      Shop #: WSC 44551 111 44551
      VCID: 244C1034E7C0DE9

      No fault code found.

      -------------------------------------------------------------------------------
      Address 03: ABS Brakes Labels: 3C0-614-109-C4.clb
      Part No SW: 3C0 614 109 R HW: 3C0 614 109 R
      Component: J104 C4 440 V3 0013
      Revision: --025--- Serial number: 00000795060827
      Coding: 0024877
      Shop #: WSC 05311 000 00000
      VCID: 2D5AF510B40A1F1

      No fault code found.

      -------------------------------------------------------------------------------
      Address 08: Auto HVAC (J255) Labels: 5K0-907-044.clb
      Part No SW: 5K0 907 044 AM HW: 5K0 907 044 AM
      Component: Climatronic 130 0305
      Revision: 00002001
      Coding: 0000000000
      Shop #: WSC 00000 000 00000
      ASAM Dataset: EV_Climatronic A01001
      ROD: EV_Climatronic_VW46.rod
      VCID: 76E81A7CC9DC1C9

      No fault code found.

      -------------------------------------------------------------------------------
      Address 09: Cent. Elect. Labels: 3C0-937-049-30-H.lbl
      Part No SW: 3C8 937 049 E HW: 3C8 937 049 E
      Component: Bordnetz-SG H54 2602
      Revision: 00H54000 Serial number: 00000009495333
      Coding: EFE28FCB01041A0047978F0017000000000BFB476440216D17 0000000000
      Shop #: WSC 40410 222 90895
      VCID: 336EE368522E491

      Subsystem 1 - Part No: 3C8 955 119 Labels: 1KX-955-119.CLB
      Component: Wischer 200109 022 0602
      Coding: 00046997
      Shop #: WSC 40410

      Subsystem 2 - Part No: 1K0 955 559 AH Labels: 1K0-955-559-AG.CLB
      Component: RLS 310309 054 0402
      Coding: 00471277
      Shop #: WSC 40410

      2 Faults Found:
      02745 - Bulb for Daytime Running Light; Left
      010 - Open or Short to Plus
      Freeze Frame:
      Fault Status: 01101010
      Fault Priority: 2
      Fault Frequency: 2
      Reset counter: 84
      Mileage: 50156 km
      Time Indication: 0

      Freeze Frame:
      ON
      Voltage: 11.50 V
      ON
      ON
      OFF
      OFF
      OFF

      02746 - Bulb for Daytime Running Light; Right
      010 - Open or Short to Plus
      Freeze Frame:
      Fault Status: 01101010
      Fault Priority: 2
      Fault Frequency: 1
      Reset counter: 84
      Mileage: 50260 km
      Time Indication: 0

      Freeze Frame:
      ON
      Voltage: 11.75 V
      ON
      ON
      OFF
      OFF
      OFF


      -------------------------------------------------------------------------------
      Address 10: Park/Steer Assist (J791) Labels: 1T0-919-475.clb
      Part No SW: 1T0 919 475 L HW: 1T0 919 475
      Component: PARKHILFE PLA H07 0021
      Revision: -------- Serial number: 06530906802325
      Coding: 300107
      Shop #: WSC 05314 000 00000
      VCID: 448CB0B4C780FE9

      No fault code found.

      -------------------------------------------------------------------------------
      Address 13: Auto Dist. Reg Labels: None
      Part No SW: 3C0 907 567 J HW: 3C0 907 567 J
      Component: AC201 RDW A 031 0232
      Revision: 00031000 Serial number: 00000000040543
      Coding: 0010000
      Shop #: WSC 05311 000 08193
      VCID: 3260E66CAD34409

      2 Faults Found:
      00532 - Supply Voltage B+
      002 - Lower Limit Exceeded - Intermittent
      Freeze Frame:
      Fault Status: 00100010
      Fault Priority: 3
      Fault Frequency: 14
      Reset counter: 116
      Mileage: 52380 km
      Time Indication: 0
      Date: 2030.14.08
      Time: 20:44:43

      Freeze Frame:
      Count: 94

      00272 - Function Disabled due to Electromagnetic Interference
      012 - Electrical Fault in Circuit - Intermittent - MIL ON
      Freeze Frame:
      Fault Status: 10101100
      Fault Priority: 7
      Fault Frequency: 8
      Reset counter: 124
      Mileage: 55764 km
      Time Indication: 0
      Date: 2097.14.20
      Time: 15:22:16

      Freeze Frame:
      Count: 16


      -------------------------------------------------------------------------------
      Address 14: Susp. Elect. (J250) Labels: None
      Part No SW: 3C0 907 376 HW: 3C0 907 376
      Component: DAEMPFUNGS-SG H07 0069
      Revision: 00000000 Serial number: 12030906590002
      Coding: 030180
      Shop #: WSC 05314 000 00000
      VCID: E6C8CA3C117C6C9

      1 Fault Found:
      01319 - Control Module for Distance Control (J428)
      013 - Check DTC Memory - Intermittent
      Freeze Frame:
      Fault Status: 00101101
      Fault Priority: 6
      Fault Frequency: 8
      Reset counter: 124
      Mileage: 55764 km
      Time Indication: 0
      Date: 2097.14.20
      Time: 15:22:16

      Freeze Frame:
      Bin. Bits: 00000000 00000001


      -------------------------------------------------------------------------------
      Address 15: Airbags Labels: 5N0-959-655.lbl
      Part No SW: 5N0 959 655 J HW: 5N0 959 655 J
      Component: J234__300 VW10 HI 1916
      Revision: 20013000 Serial number: 003E2P5P610
      Coding: 0012336
      Shop #: WSC 05311 000 00000
      VCID: 448CB0B40780FE9

      No fault code found.

      -------------------------------------------------------------------------------
      Address 16: Steering wheel Labels: 3C0-953-549-SW25.lbl
      Part No SW: 3C0 953 549 AJ HW: 3C0 953 549 AJ
      Component: J0527 0030
      Revision: 00032000 Serial number: 3C5953507CR
      Coding: 0201721
      Shop #: WSC 05314 000 00000
      VCID: 74EC207417A00E9

      Subsystem 1 - Part No: 3C8 959 537 B
      Component: E221__MFL-TAP H4ÿ 0021
      Coding: 00000226
      Shop #: WSC 00000

      No fault code found.

      -------------------------------------------------------------------------------
      Address 17: Instruments (J285) Labels: 3C8-920-xxx-17.clb
      Part No SW: 3C8 920 870 C HW: 3C8 920 870 C
      Component: KOMBI H05 0110
      Serial number: 00000000000000
      Coding: 140D00
      Shop #: WSC 05314 115 00000
      ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04040
      ROD: EV_Kombi_UDS_VDD_RM09_VW46.rod
      VCID: 2B5EFB08421E111

      No fault code found.

      -------------------------------------------------------------------------------
      Address 18: Aux. Heat Labels: None
      Part No: 1K0 815 007 BQ
      Component: Standheizer 022 3905
      Revision: 00022000 Serial number: 09017794000000
      Coding: 0021012
      Shop #: WSC 05311 000 00000
      VCID: 74EC207417A00E9

      2 Faults Found:
      01408 - Under-Voltage Shut-Off (fixed Value)
      000 - - - Intermittent
      Freeze Frame:
      Fault Status: 00100000
      Fault Priority: 0
      Fault Frequency: 3
      Reset counter: 40
      Mileage: 1048575 km
      Time Indication: 0
      Date: 2127.15.31
      Time: 16:00:01

      Freeze Frame:
      Part Throttle
      Temperature: 93.0°C
      Temperature: -48.0°C

      00664 - Fuel gauge
      002 - Lower Limit Exceeded - Intermittent
      Freeze Frame:
      Fault Status: 00100010
      Fault Priority: 0
      Fault Frequency: 6
      Reset counter: 40
      Mileage: 52258 km
      Time Indication: 0
      Date: 2029.14.26
      Time: 19:36:32


      -------------------------------------------------------------------------------
      Address 19: CAN Gateway Labels: 3C0-907-530.lbl
      Part No SW: 3C0 907 530 J HW: 3C0 907 951
      Component: J533__Gateway H13 0152
      Revision: H13 Serial number: 2900R0932080FD
      Coding: FDAD7F07506E13009002
      Shop #: WSC 05314 000 00000
      VCID: 285404049BE83A9

      No fault code found.

      -------------------------------------------------------------------------------
      Address 25: Immobilizer Labels: 3C0-959-433-25.clb
      Part No SW: 3C0 959 799 H HW: 3C0 959 799 H
      Component: IMMO 070 0383
      Revision: 00070000 Serial number: VWZCZ000000000
      Shop #: WSC 131071 1023 2097151
      VCID: 3E78C25C696C949

      Part No: 3C0 905 861 G
      Component: ELV 027 0380
      3C0905861G ELV 027 0380

      No fault code found.

      -------------------------------------------------------------------------------
      Address 2E: Media Player 3 (J650) Labels: 5N0-035-342.lbl
      Part No SW: 5N0 035 342 B HW: 5N0 035 342 B
      Component: SG EXT.PLAYER H13 0084
      Revision: A1001003 Serial number: 7667393549
      Coding: 010000
      Shop #: WSC 05314 000 00000
      VCID: 26480A3C51FC2C9

      No fault code found.

      -------------------------------------------------------------------------------
      Address 37: Navigation (J0506) Labels: 1T0-035-680.clb
      Part No SW: 1T0 035 680 D HW: 1T0 035 680 B
      Component: RNS-MID H04 3810
      Revision: AB001001 Serial number: VWZ6Z7J7091003
      Coding: 06050000010000920000
      Shop #: WSC 05314 000 00000
      ASAM Dataset: ------------------------- ------
      VCID: 2F66EF187E066D1

      1 Fault Found:
      00857 - CD Changer Unit (R41)
      004 - No Signal/Communication
      Freeze Frame:
      Fault Status: 01100100
      Fault Priority: 5
      Fault Frequency: 254
      Reset counter: 84
      Mileage: 49080 km
      Time Indication: 0


      -------------------------------------------------------------------------------
      Address 42: Door Elect, Driver Labels: 1K0-959-701-MAX3.lbl
      Part No SW: 1T0 959 701 L HW: 1K0 959 793 P
      Component: J386 TUER-SG FT 1533
      Revision: 71009005 Serial number: 00000757598119
      Coding: 0004279
      Shop #: WSC 05311 000 00000
      VCID: 4084BCA41398E29

      No fault code found.

      -------------------------------------------------------------------------------
      Address 44: Steering Assist Labels: 5N1-909-144.clb
      Part No SW: 5N1 909 144 J HW: 5N1 909 148 F
      Component: J500__APA-BS KL.071 0503
      Revision: 1AH02250 Serial number: 00090360086602
      Coding: 0000258
      Shop #: WSC 05311 000 00000
      VCID: 3972D1407042B31

      No fault code found.

      -------------------------------------------------------------------------------
      Address 46: Central Conv. Labels: 3C0-959-799-46.clb
      Part No SW: 3C0 959 799 H HW: 3C0 959 799 H
      Component: 09 KESSY PQ46 R 070 0231
      Revision: 00070000 Serial number: VWZCZ000000000
      Coding: 00910A0001C60E763602941570004FCE70580103242498
      Shop #: WSC 05311 000 00000
      VCID: 3E78C25C696C949

      Part No: 1K8 951 605
      Component: LIN BACKUP HORN H09 9002

      Part No: 3C0 951 171 C
      Component: Neigungssensor 004 0611

      Part No: 3C0 951 171 C
      Component: Innenraumueberw.004 0611

      1 Fault Found:
      00323 - Vehicle Inclination Sensor (G384)
      008 - Implausible Signal - Intermittent
      Freeze Frame:
      Fault Status: 00101000
      Fault Priority: 4
      Fault Frequency: 1
      Reset counter: 91
      Mileage: 54888 km
      Time Indication: 0
      Date: 2096.14.21
      Time: 16:04:03


      -------------------------------------------------------------------------------
      Address 47: Sound System Labels: 3C0-035-456.lbl
      Part No SW: 3C8 035 456 C HW: 3C8 035 456 C
      Component: DSP 10 Kanal 0070
      Revision: 00H05001 Serial number: 75805001016405
      Shop #: WSC 00000 000 00000
      VCID: 285404049BE83A9

      No fault code found.

      -------------------------------------------------------------------------------
      Address 4F: Centr. Electr. II (J533_) Labels: 1K0-907-532.clb
      Part No SW: 1K0 907 532 HW: 3C0 907 951
      Component: J533__Gateway H13 0152
      Revision: -------- Serial number: 2900R0932080FD
      Coding: 01030101
      Shop #: WSC 05314 000 00000
      VCID: E6C8CA3C117C6C9

      Subsystem 1 - Part No SW: 6R0 959 591 HW: 6R0 959 591
      Component: J245/J878 H04 0054
      Coding: 000006

      No fault code found.

      -------------------------------------------------------------------------------
      Address 52: Door Elect, Pass. Labels: 1K0-959-702-MAX3.lbl
      Part No SW: 1T0 959 702 L HW: 1K0 959 792 P
      Component: J387 TUER-SG BT 1533
      Revision: 71009005 Serial number: 00000751498202
      Coding: 0004278
      Shop #: WSC 05311 000 00000
      VCID: 4182B9A01892EB1

      No fault code found.

      -------------------------------------------------------------------------------
      Address 53: Parking Brake Labels: 5N0-907-801.clb
      Part No SW: 3C8 907 801 A HW: 3C8 907 801 B
      Component: J540 EPB3 VW-10498 0003
      Revision: 010 Serial number: 00000000036213
      Coding: 0000057
      Shop #: WSC 05311 000 00000
      VCID: 285404049BE83A9

      No fault code found.

      -------------------------------------------------------------------------------
      Address 55: Xenon Range Labels: 5M0-907-357-V2.lbl
      Part No SW: 5M0 907 357 C HW: 5M0 907 357 C
      Component: AFS-Steuergeraet 0142
      Revision: 00H04000 Serial number:
      Coding: 3493064
      Shop #: WSC 05311 000 00000
      VCID: 346CE07457204E9

      Subsystem 1 - Part No: 1K0 941 329
      Component: AFS-Lst.-Modul l 0003
      Coding: 00000053

      Subsystem 2 - Part No: 1K0 941 329
      Component: AFS-Lst.-Modul r 0003
      Coding: 00000053

      No fault code found.

      -------------------------------------------------------------------------------
      Address 56: Radio (J0506) Labels: 1T0-035-680.clb
      Part No SW: 1T0 035 680 D HW: 1T0 035 680 B
      Component: RNS-MID H04 3810
      Revision: AB001001 Serial number: VWZ6Z7J7091003
      Coding: 06050000010000920000
      Shop #: WSC 05314 000 00000
      ASAM Dataset: ------------------------- ------
      VCID: 2F66EF187E066D1

      1 Fault Found:
      00857 - CD Changer Unit (R41)
      004 - No Signal/Communication
      Freeze Frame:
      Fault Status: 01100100
      Fault Priority: 5
      Fault Frequency: 254
      Reset counter: 84
      Mileage: 49080 km
      Time Indication: 0


      -------------------------------------------------------------------------------
      Address 5D: Operations Labels: 3C0-035-151.lbl
      Part No SW: 3C0 035 151 D HW: 3C0 035 151 D
      Component: J738 012 0020
      Revision: 00012000
      Shop #: WSC 00000 000 00000
      VCID: 193231C0D082931

      No fault code found.

      -------------------------------------------------------------------------------
      Address 62: Door, Rear Left Labels: 1K0-959-703-GEN3.lbl
      Part No SW: 3C8 959 703 B HW: 1K0 959 795 Q
      Component: J388 TUER-SG HL 0309
      Revision: 43004101 Serial number: 00000000833181
      Coding: 0000144
      Shop #: WSC 05311 000 00000
      VCID: 3162E960A8327B1

      No fault code found.

      -------------------------------------------------------------------------------
      Address 65: Tire Pressure Labels: 3C0-959-433-65.lbl
      Part No SW: 3C0 959 799 H HW: 3C0 959 799 H
      Component: RDK 0453
      Revision: 00070000 Serial number: VWZCZ000000000
      Coding: 0161211
      Shop #: WSC 05311 000 00000
      VCID: 3E78C25C696C949

      2 Faults Found:
      01521 - Sensor for Tire Pressure
      004 - No Signal/Communication
      Freeze Frame:
      Fault Status: 01100100
      Fault Priority: 4
      Fault Frequency: 1
      Mileage: 55668 km
      Time Indication: 0
      Date: 2097.14.17
      Time: 15:10:19

      01477 - System Switched Off
      000 - -
      Freeze Frame:
      Fault Status: 01100000
      Fault Priority: 4
      Fault Frequency: 1
      Mileage: 55710 km
      Time Indication: 0
      Date: 2097.14.19
      Time: 17:07:54


      -------------------------------------------------------------------------------
      Address 6C: Back-up Cam. Labels: 5N0-907-441.clb
      Part No SW: 3C8 907 441 HW: 3C8 907 441
      Component: J772__Rearview 0022
      Revision: 00H06000 Serial number: 525PA8-J930343
      Coding: 0020008
      Shop #: WSC 05311 000 00000
      VCID: E7D6C738D676751

      No fault code found.

      -------------------------------------------------------------------------------
      Address 72: Door, Rear Right Labels: 1K0-959-704-GEN3.lbl
      Part No SW: 3C8 959 704 B HW: 1K0 959 794 Q
      Component: J388 TUER-SG HR 0309
      Revision: 43004101 Serial number: 00000000822972
      Coding: 0000144
      Shop #: WSC 05311 000 00000
      VCID: 3260E66CAD34409

      No fault code found.

      -------------------------------------------------------------------------------
      Address 77: Telephone (J412) Labels: 7P6-035-730.clb
      Part No SW: 7P6 035 730 F HW: 7P6 035 730 F
      Component: TELEFON H09 2730
      Revision: 1B001001 Serial number: 00007660978650
      Coding: 0A00000000010100
      Shop #: WSC 00000 000 00000
      ASAM Dataset: EV_UHVNA A01015
      ROD: EV_UHVNA_VW46.rod
      VCID: 356ADD70945A571

      2 Faults Found:
      9457427 - Negative output audio channel for speech/telephone
      B104F 13 [009] - Open Circuit
      Confirmed - Tested Since Memory Clear
      Freeze Frame:
      Fault Status: 00000001
      Fault Priority: 4
      Fault Frequency: 1
      Reset counter: 110
      Mileage: 51031 km
      Date: 2028.14.30
      Time: 18:50:13

      13636352 - Control Module Not Coded
      U1013 00 [009] - -
      Confirmed - Tested Since Memory Clear
      Freeze Frame:
      Fault Status: 00000001
      Fault Priority: 4
      Fault Frequency: 1
      Reset counter: 105
      Mileage: 50851 km
      Date: 2028.14.28
      Time: 14:51:56


      End ---------------------------------------------------------------------



      The only fault i got left is:
      -------------------------------------------------------------------------------
      Address 13: Auto Dist. Reg Labels: None
      Part No SW: 3C0 907 567 J HW: 3C0 907 567 J
      Component: AC201 RDW A 031 0232
      Revision: 00031000 Serial number: 00000000040543
      Coding: 0010000
      Shop #: WSC 05311 000 08193
      VCID: 3260E66CAD34409

      2 Faults Found:
      00532 - Supply Voltage B+
      002 - Lower Limit Exceeded - Intermittent
      Freeze Frame:
      Fault Status: 00100010
      Fault Priority: 3
      Fault Frequency: 14
      Reset counter: 116
      Mileage: 52380 km
      Time Indication: 0
      Date: 2030.14.08
      Time: 20:44:43

      Freeze Frame:
      Count: 94

      00272 - Function Disabled due to Electromagnetic Interference
      012 - Electrical Fault in Circuit - Intermittent - MIL ON
      Freeze Frame:
      Fault Status: 10101100
      Fault Priority: 7
      Fault Frequency: 8
      Reset counter: 124
      Mileage: 55764 km
      Time Indication: 0
      Date: 2097.14.20
      Time: 15:22:16

      Freeze Frame:
      Count: 16


      Some days it work, other days it only work for 5minutes and other days just 2minutes.
      I dont understand whats wrong with it, anyone seen this before?

      Thanks

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    3. 04-28-2012 08:34 AM #2
      anyone?

    4. Forum Sponsor jef@rosstech's Avatar
      Join Date
      Jul 19th, 2010
      Location
      In the south, but not the "barefoot and toothless" south.
      Posts
      311
      Vehicles
      2004 VWs
      04-28-2012 08:33 PM #3
      First off, thank you for posting a full Auto-Scan!

      Looking at the ACC codes:

      00532 - Supply Voltage B+
      002 - Lower Limit Exceeded - Intermittent
      The module is not happy with the battery voltage, too low. Now I've seen this code in all kinds of modules over the years. Most common cause is you have the ignition on, but the engine not running and after a while the battery voltage dips below X voltage and modules can start to flag this code. In most cases it is a non-issue that doesn't come back.

      But in this case, if it keeps coming back, I would would want to make sure the wiring harness for this module has good clean connections. If there is something like a loose ground point then this code could keep coming back.

      Normally the airbag module is the first one to bitch and moan about low battery voltage. Since I didn't see that code in the airbag module, I would suspect the car's battery and charging system is up to par... doesn't hurt to double check it though.... but the more I think about this, the more likely I feel you could have a poor connection issue for the ACC. This could be a ground point, fuse, or even an cracked soldier joint on the circuit board of the module itself.... tracking down an issue like this can be .... fun. Even better, it works at times...

      00272 - Function Disabled due to Electromagnetic Interference
      012 - Electrical Fault in Circuit - Intermittent - MIL ON
      eh... are you operating a pirate radio station from your car? This could be tied back to the voltage issue. Hopefully someone smarter than me will chime in on this one.
      Jef blah blah blah
      http://www.ross-tech.com
      071, 070, 034, 036, 046, 077

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    6. 04-30-2012 10:45 AM #4
      Thanks for getting back to me jef.

      I replaced the main battery as I though that might have been the issue at first, the second battery was running good at 14,4V. So It cant be the battery power anymore. Connections to both batterys are good.

      The problem is getting stranger as im looking into it.. I only get the "ACC fault" if the car has been sitting in the sun, and is hotter than our normal 10*C. Is there any relays controlling this thing? I read somewhere about a relay that screwed up, but cant find back to the site I read about it..

      No pirate radiostation in my car, draining power

    7. 05-13-2012 03:56 PM #5
      >Lomnex wrote: Is there any relays controlling this thing? I read somewhere about a relay that screwed up, but cant find back to the site I read about it..

      Yes there is a relay controling the ACC. It is called J788 and is located between the others relays under the instrument cluster. The relay has partnumber: 3C0 951 253 A. You can identify it by the number 479 in the front of the relay. It has nothing to do with power i think, but something to do with the CAN bus.

      Don't know if this help

      Best regards
      Otto
      Last edited by ohaue; 05-13-2012 at 04:00 PM.

    8. 05-13-2012 10:57 PM #6
      Relay 479 only disconecting ACC from CAN. I have also this problem

      00272 - Function Disabled due to Electromagnetic Interference

      Sometime in winter when was -25 degree , last time even when ACC was not in use.
      HOT HOT HOT !!!! MK7 MFSW with CCS https://www.youtube.com/watch?v=JQ8c...ature=youtu.be HOT HOT HOT

    9. 06-21-2012 04:52 PM #7
      I cant find Relay 479, everything i find behind the box on the left side of the steering wheel are relays with numbers that say 449 (small grey ones) and two larger 460. Any idea of the location or what it supposed to say next to the relay on the black plastic?

      Reason I havent followed up on this thread is because its been working without any problems for over a month now...

      Like spacewalker I first started having this problem driving up in the mountains with large snowpiles on both sides of the road, but back in town there was no problem. Thought it might be allergic to snow


    10. 07-26-2012 12:32 PM #8
      Hi all,

      I have a touareg V10 tdi, and I have the same issue.
      Yesterday I went through the "02 - engine" with VAG-COM and I cleared all messages.
      ACC was working fine, but 1 or 2 mn after that while driving the car on the highway, the acc was in fault again. I stopped, cleared the error message again and ACC was on again..

      Any ideas of what it can be? I can buy another "acc radar" which is placed in the VW sign in the front, but as it cost 200€ I don't want to spend that money for nothing....

      Thank you guys

    11. 10-08-2012 04:00 AM #9
      My problem got solved after a short trip to the garage.

      Rear brakelight bulbs was giving an error to system, but was working...
      Replaceing both brakelight bulbes fixed the issue and the ACC has been working since.

      Cost me 250$ to solve this idiotic problem at the garage as the prices in Norway for one hour is very high.

    12. 12-23-2013 01:42 AM #10
      Anyone else have solutions besides replacing the real tail light bulbs? (which i will try tomorrow since they are cheap!) I started having this exact same issue on my 2008 Touareg about a month ago. Now I am on a road trip and it worked for the first 700 miles... but now it just keeps disabling and showing the exact same codes as listed in this thread. I am still under warranty but I am out of town and only really trust my shop back home to diagnose... but would like to try to solve this so that I have cruise control for the drive home next week.

      Any other thoughts? Thanks.

      (and sorry for digging up an old thread!)

    13. 01-08-2016 08:21 AM #11
      Quote Originally Posted by gregtay View Post
      Anyone else have solutions besides replacing the real tail light bulbs? (which i will try tomorrow since they are cheap!) I started having this exact same issue on my 2008 Touareg about a month ago. Now I am on a road trip and it worked for the first 700 miles... but now it just keeps disabling and showing the exact same codes as listed in this thread. I am still under warranty but I am out of town and only really trust my shop back home to diagnose... but would like to try to solve this so that I have cruise control for the drive home next week.

      Any other thoughts? Thanks.

      (and sorry for digging up an old thread!)
      futher digging here have same fault and totally at a loss about what to do, dealer is quoting $1900 gbp for new radar and $590 for new ecu parts only and wondering if anybody has had this problem and fixed it, or diagnosis steps??

    14. 03-17-2019 04:27 AM #12
      Anyoine any ideeas? is the module defective?
      it works for 2-15 minutes..then..bum..acc error..

      Address 13: Auto Dist. Reg Labels: None
      Control Module Part Number: 7L6 907 567 A HW: 7L6 907 567 A
      Component and/or Version: AC201 RDW 1 031 0382
      Software Coding: 0010000
      Work Shop Code: WSC 31414 790 00001
      VCID: 3C77D27B7B70863
      2 Faults Found:

      00003 - Control Module
      014 - Defective
      Freeze Frame:
      Fault Status: 01101110
      Fault Priority: 3
      Fault Frequency: 8
      Reset counter: 108
      Mileage: 268837 km
      Time Indication: 0
      Date: 2019.02.27
      Time: 12:52:21

      Freeze Frame:
      Count: 0

      00272 - Function Disabled due to Electromagnetic Interference
      012 - Electrical Fault in Circuit - Intermittent - MIL ON
      Freeze Frame:
      Fault Status: 10101100
      Fault Priority: 7
      Fault Frequency: 13
      Reset counter: 148
      Mileage: 268686 km
      Time Indication: 0
      Date: 2019.02.23
      Time: 07:59:31

      Freeze Frame:
      Count: 14

    15. 05-09-2019 02:08 AM #13
      yes, is defective
      HOT HOT HOT !!!! MK7 MFSW with CCS https://www.youtube.com/watch?v=JQ8c...ature=youtu.be HOT HOT HOT

    16. 05-26-2019 01:05 PM #14
      170,000 miles.

    17. 10-08-2019 06:10 AM #15
      My sensor was not defective--my main battery was low...now it works like a charm.

      So..i was having the same ACC electromagnetical crap..influence my ass..It was the main battery, under the drivers seat, that was on low voltage-around 12,2-12,3 Volts.
      I also have a webasto battery in the luggage compartment- so my car didnt tell me anything was wrong with the power.
      I took the ACC sensor apart. Nothing significant..Needless to say the sensor looked like crap after being openned. Anyway, I put it back..some glue on the sides and mounted it on the car. Nothing worked. ACC fault came after 10 meters. Next someone that runs a lot of Touaregs asked about the voltages..and told me to change the drivers battery. After that...everyting worked perfect.
      All you guys here and there..defective module..change it. The dealership called me in for a software update and realignment..at some crazy prices. NO WAY.
      Last edited by arkadyema; 10-08-2019 at 06:17 AM. Reason: problem solved

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