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Overdose
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.


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






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




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


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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.


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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.


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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


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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


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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: Lenksäulenmodul 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)-----------------------

c4a5er
06-02-2017, 09:11 PM
The front passsenger footwell is known problem area where water ingress can corrode wiring....worth lifting the carpet as it's not always obvious that it's wet underneath.
I assume you have cleaned the plenum drains behind the wheel arch liners?

Overdose
06-02-2017, 10:38 PM
Yes, plenum areas drained, as that's where the water was found. I'll have a look under the carpets and provide feedback.
So are you saying both footwells have problems on these cars, or is it dependent on which side the steering and controls are?

c4a5er
07-02-2017, 12:04 PM
Yes both sides, behind kick plates and below carpet. Passenger side seems more common, perhaps simply because of road camber when parked. The harnesses will need to be opened up going forward to reveal splices. Not saying this is your issue just common areas for electrical
gremlins.