CAN Bus wiring issues? – 05-02-2017,09:40 PM
I have a number of what I would consider to be CAN bus connection/communication issues and wanted to inspect the loom in the areas of junctions/joins.I have a wiring diagram, but am not sure of the routes of the wiring and where the splices might be. I understand that there are some on the drivers side sill area under the carpet and this is a common problem area?
I physically checked accessible connections to the ABS, EEC, central convenience module and the instrument cluster, I would be grateful for any pointers to common failures in these areas. Recent history of the car is one year stored in damp conditions, mildew evident in car, now mostly dried and cleaned, but I suspect moisture ingress to be the main culprit. Plenum chamber had an estimated 1L of water, so probably more at one point and likely to be cause of damp carpets.
Auto-scan attached to show the current issues.
Code:
Friday,03,February,2017,19:17:48:38737VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64 VCDS Version: 17.1.2.1 (x64) Data version: 20170131 DS267.1 www.Ross-Tech.com VIN: WVGZZZ7LZ3D008777 License Plate: SY03HFT Mileage: 115390km-71700mi Repair Order: Air quality sensor Cx -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Chassis Type: 7L (7L - VW Touareg (2003 > 11/2006)) Scan: 01 02 03 05 06 08 09 11 13 15 16 17 18 19 1C 22 29 32 34 36 37 39 3C 46 47 55 56 57 64 65 68 69 6C 6D 6E 75 76 77 VIN: WVGZZZ7LZ3D008777 Mileage: 115390km-71700miles ------------------------------------------------------------------------------- Address 01: Engine Labels: 077-907-560-AXQ.lbl Part No SW: 4D0 907 560 BQ HW: 8E0 907 560 Component: 4.2L V8/5V G 0050 Coding: 0011875 Shop #: WSC 31414 000 00000 VCID: 76E9DA7802506CF1C8-5140 4 Faults Found: 17748 - Camshaft Position Sensor (G40) / Engine Speed Sensor (G28) P1340 - 001 - Incor. Correlation - MIL ON 17887 - Brake Boost Vacuum System P1479 - 008 - Mechanical Failure 16815 - Warm Up Catalyst; Bank 2 P0431 - 001 - Efficiency Below Threshold 16805 - Warm Up Catalyst; Bank 1 P0421 - 001 - Efficiency Below Threshold Readiness: 0000 0101 ------------------------------------------------------------------------------- Address 02: Auto Trans Labels: 09D-927-750.lbl Part No: 09D 927 750 J Component: AL 600 6Q 0346 Coding: 0004136 Shop #: WSC 31414 000 00000 VCID: 356B1D745FD627E901-5140 No fault code found. ------------------------------------------------------------------------------- Address 03: ABS Brakes Labels: 7L0-907-379-MK25.lbl Part No: 7L0 907 379 B Component: ESP ALLRAD MK25 0106 Coding: 0014337 Shop #: WSC 71233 144 00001 VCID: 3875144048C4DA811A-5124 No fault code found. ------------------------------------------------------------------------------- Address 05: Acc/Start Auth. Labels: 3D0-909-13x-05.lbl Part No SW: 3D0 909 131 T HW: 5WK 470 21 Component: Kessy 6120 Coding: 0000232 Shop #: WSC 31414 000 00000 VCID: 32612668AEB830D124-5140 Subsystem 1 - Part No: XXXXXXXXXXX Component: ELV XXXX 7 Faults Found: 01336 - Company Data Bus for Comfort System 014 - Defective - Intermittent 00457 - Control Module for Network (J519) 004 - No Signal/Communication - Intermittent 00956 - Key 2 002 - Lower Limit Exceeded 01330 - Central Control Module for Central Convenience (J393) 004 - No Signal/Communication - Intermittent 01314 - Engine Control Module 004 - No Signal/Communication - Intermittent 01316 - ABS Control Module 004 - No Signal/Communication - Intermittent 01299 - Diagnostic Interface for Data Bus (J533) 005 - No or Incorrect Basic Setting / Adaptation - Intermittent ------------------------------------------------------------------------------- Address 08: Auto HVAC Labels: 7L6-907-040.clb Part No: 7L6 907 040 D Component: CLIMAtronic R/L 0302 Coding: 0001020 Shop #: WSC 31414 000 00000 VCID: 31632964ABBE0BC95D-5140 1 Fault Found: 02100 - Footwell Flap Motor (V261) 000 - - - Intermittent ------------------------------------------------------------------------------- Address 09: Cent. Elect. Labels: 7Lx-937-049-V1.clb Part No: 7L6 937 049 K Component: 2701 Coding: 0100412 Shop #: WSC 31414 000 00000 VCID: 448D70B0040C8E6186-5124 1 Fault Found: 00907 - Intervention load Management 000 - - ------------------------------------------------------------------------------- Address 15: Airbags Labels: 3D0-909-601.lbl Part No: 3D0 909 601 B Component: 4 Airbag 8.4E+ H07 0641 Coding: 0008244 Shop #: WSC 00000 000 00000 VCID: 2241D628FE58A051D4-5124 No fault code found. ------------------------------------------------------------------------------- Address 16: Steering wheel Labels: 7L6-953-549.lbl Part No: 7L6 953 549 B Component: Lenks�ulenmodul 3201 Coding: 0000011 Shop #: WSC 31414 000 00000 VCID: 3E7902586AE0E4B1D0-5140 No fault code found. ------------------------------------------------------------------------------- Address 17: Instruments Labels: 7L6-920-xxx-7LA.lbl Part No: 7L6 920 970 P Component: KOMBIINSTRUMENT RB8 2035 Coding: 0007411 Shop #: WSC 00792 210 91867 VCID: 448D70B0040C8E6186-5124 1 Fault Found: 00470 - Company Comfort Databus in Single Wire 011 - Open Circuit ------------------------------------------------------------------------------- Address 19: CAN Gateway Labels: 6N0-909-901-19.lbl Part No: 6N0 909 901 Component: Gateway K<>CAN 0101 Coding: 0000006 Shop #: WSC 00792 210 91867 VCID: 70E5EC60603442C112-5140 1 Fault Found: 00470 - Company Comfort Databus in Single Wire 011 - Open Circuit ------------------------------------------------------------------------------- Address 22: AWD Labels: None Part No: 0AD 927 755 BE Component: TRANSFERCASE 0122 Shop #: WSC 00000 000 00000 VCID: 7F073F5C2D6A2DB99B-5140 1 Fault Found: 01316 - ABS Control Module 004 - No Signal/Communication - Intermittent ------------------------------------------------------------------------------- Address 46: Central Conv. Labels: 7L0-959-933.lbl Part No: 7L0 959 933 C Component: JM HSG 3203 Coding: 0000065 Shop #: WSC 00792 210 59061 VCID: 3C7D08507CFCF6A1FE-FFFE Subsystem 1 - Part No: 7L0 959 701 D Component: Tuersteuergeraet FS 0104 Subsystem 2 - Part No: 7L0 959 702 D Component: Tuersteuergeraet BF 0104 Subsystem 3 - Part No: 7L0 959 703 Component: Tuersteuergeraet HL 0104 Subsystem 4 - Part No: 7L0 959 704 Component: Tuersteuergeraet HR 0104 Subsystem 5 - Part No: 7L0 907 719 Component: Neigungssensor 0018 Subsystem 6 - Part No: 7L6 951 171 Component: A Innenraumsensor 0019 ------------------------------------------------------------------------------- Address 56: Radio Labels: 3B7-035-1xx-56.lbl Part No: 7L6 035 195 Component: Radio DE2 0003 Coding: 0001407 Shop #: WSC 31414 000 00000 VCID: 70E5EC60603442C112-5124 Subsystem 1 - Part No: 7L6 035 195 Component: Radio DE2 0003 No Faults Found or DTCs not supported by controller or a communication error occurred ------------------------------------------------------------------------------- Address 68: Wiper Electr. Labels: None Part No: 7L0 955 119 G Component: Front Wiper 2416 Coding: 0000004 Shop #: WSC 31414 000 376832 VCID: 3875144048C4DA811A-5140 No fault code found. End---------------------(Elapsed Time: 10:52, udsna)-----------------------
Source: https://www.vwaudiforum.co.uk/forum/showthread.php/181226-CAN-Bus-wiring-issues
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