Battery Drain Issue - Company Comfort Databus in Single Wire

   #1  

gooselogan

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I've got a battery drain issue on my 05 Caddy and hoping someone might be able to help. I've not needed to use VCDS before as anything I've had to repair has been mechanical or older vehicles, so I've borrowed a VCDS cable off my friend who is currently out of the country to try and find the problem.

I've run a scan and come up with the following

Code:
Monday,02,May,2016,15:16:15:16146
VCDS -- Windows Based VAG/VAS Emulator Running on Windows Vista x86
VCDS Version: 15.7.4.1
Data version: 20160216
www.Ross-Tech.com


VIN: WV1ZZZ2KZ6X052017   License Plate: HG55 VXP
Mileage: 296900km-184485mi   Repair Order: 004



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


Chassis Type: 2K (1K0)
Scan: 01 03 09 15 16 17 19 25 42 46 52 56

VIN: WV1ZZZ2KZ6X052017   Mileage: 296900km-184485miles

00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 03G-906-021-BLS.clb
   Part No SW: 03G 906 021 AQ    HW: 028 101 239 0
   Component: R4 1,9l EDC  000SG  7529  
   Revision: --H01---    Serial number: VWZ7Z0E2848841
   Coding: 0000031
   Shop #: WSC 00379 210 02853
   VCID: 6ED9F13179A8174E9C-803A

No fault code found.
Readiness: 0 0 0 0 1 

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 1K0-907-379-MK70.lbl
   Part No: 1K0 907 379 P
   Component: ASR FRONT MK70      0105  
   Coding: 0017106
   Shop #: WSC 35110 377 00162
   VCID: 3F877C756E42AEC647-806A

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels: 3C0-937-049-23-M.lbl
   Part No SW: 3C0 937 049 D    HW: 3C0 937 049 D
   Component: Bordnetz-SG     H37 1002  
   Revision: 00H37000    Serial number: 00000005113879
   Coding: 80884F030004100000000000000000000009FB075C
   Shop #: WSC 35110 377 08192
   VCID: 2A513D2185C03B6E00-807E

   Subsystem 1 - Part No: 2K2 955 119 B  Labels: 1KX-955-119.CLB
   Component: Wischer VW357  012  0402  
   Coding: 00065493
   Shop #: WSC 35110  

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 6Q0-909-605-VW52.lbl
   Part No SW: 6Q0 909 605 AH    HW: 6Q0 909 605 AH
   Component: 09 AIRBAG VW52  023 2400  
   Revision: 04023000    Serial number: 0037TD088XV3  
   Coding: 0012345
   Shop #: WSC 35110 377 00162
   VCID: 7DFBC67D24CE7CD615-8028

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 1K0-953-549-MY8.lbl
   Part No SW: 1K0 953 549 AE    HW: 1K0 953 549 AE
   Component: Lenks‰ulenmodul 634 0070  
   Coding: 0000002
   Shop #: WSC 35110 377 08192
   VCID: 75EBDE5D1CFE24965D-8020

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 1K0-920-xxx-17.lbl
   Part No: 2K0 920 942 C
   Component: KOMBIINSTRUMENT VDD 1012  
   Coding: 0017401
   Shop #: WSC 00999 444 64523
   VCID: 2A513D2185C03B6E00-807E

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 1K0-907-530-V1.clb
   Part No SW: 1K0 907 530 F    HW: 1K0 907 951 
   Component: Gateway         H10 0120  
   Revision:   H10       Serial number: 2800105A22068B
   Coding: 1D0F0140077001
   Shop #: WSC 00379 210 02853
   VCID: 2A513D2185C03B6E00-807E

1 Fault Found:
00470 - Company Comfort Databus in Single Wire 
            011 - Open Circuit
             Freeze Frame:
                    Fault Status: 01101011
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 124
                    Mileage: 296909 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 00:00:01


-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 1K0-920-xxx-25.clb
   Part No: 2K0 920 942 C
   Component: IMMO            VDD 1012  
   Shop #: WSC 00000 000 00000
   VCID: 2A513D2185C03B6E00-807E

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver        Labels: 1K0-959-701-MIN2.lbl
   Part No: 1T0 959 701 B
   Component: Tuer-SG         024 2316  
   Coding: 0000560
   Shop #: WSC 35110 377 08192
   VCID: 3669195141786F8E94-8062

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 1K0-959-433-MIN.clb
   Part No: 1K0 959 433 AK
   Component:    KSG              0401  
   Coding: 008A0C087F2D8404085A010010C0
   Shop #: WSC 00379 210 02853
   VCID: 79F3D26D30E640F639-802C

   Subsystem 1 - Component:   Sounder n.mounted     

   Subsystem 2 - Component:       NGS n.mounted     

   Subsystem 3 - Component:      IRUE n.mounted     

1 Fault Found:
00470 - Company Comfort Databus in Single Wire 
            011 - Open Circuit

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass.        Labels: 1K0-959-702-MIN2.lbl
   Part No: 1T0 959 702 B
   Component: Tuer-SG         024 2316  
   Coding: 0000560
   Shop #: WSC 35110 377 08192
   VCID: 37771455467296868F-8062

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 1K0-035-1xx-56.lbl
   Part No: 1K0 035 186 P
   Component: Radio GR0       015 0019  
   Revision: 0001503S    Serial number: VWZ2Z2E2682372
   Coding: 0020200
   Shop #: WSC 35110 377 08192
   VCID: 336F2045520A7AA6B3-8066

No fault code found.

End-------------------------(Elapsed Time: 01:50)--------------------------

So if my understanding is right there is something causing the single wire fault meaning its not going to sleep and causing the drain?

I've also done a voltage drop test on fuses and the only one that is coming back is the one for interior lights and module J519.

Can someone help and explain where I go from here? What I should be checking on VCDS, disconnecting modules etc?

Thanks
 
   #2  

Uwe

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Single-wire is a fallback mode when one of the two wires of the twisted pair is broken, not connected, or otherwise in some state (such as shorted to something else) in which it cannot transmit data. If it were mine, I think I'd start with continuity checks on both wires of that bus everywhere it goes, starting with the 09 and 46 modules.

-Uwe-
 
   #3  

gooselogan

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Would unplugging modules until that code went away point me in the right direction?
I ask as I checked the easiest and common issues of the door wiring and when I unplugged the passenger doro the single wire code went and I was left with it no being able to find the door module. But when I did the same on the driver side I still had the single wire fault.
 
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   #4  

DrPeter

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