2013 Touareg 7P US model retrofitted with Euro tow bar & controller

   #1  

flyingpenguin

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Hi all,

When I moved from Texas to the Netherlands I had the good fortune to bring the TREG over. Most functions carry over except for the rear fog light which took some finagling but works fine now. Also swapped out the US receiver hitch style tow bar and control module (7P0-907-383-F) for the electric swiveling euro style tow bar and control module (7P0-907-383-C) that I obtained via a local salvage yard.
After the install (with the tow hook swiveled "in"), I managed to actuate the swiveling mechanism just once and now it is in the "out" position.
This is what I know so far:
- All trailer lights / functions work when connecting to the 13 pin euro style connector, at least with regular style bulbs. Not sure with LED's.
- The swiveling button in the boot lights up as intended when opening the hatch
- When pressing the swiveling button, the tow hook does not move
- Coding for the Euro style control unit 7P0-907-383-C that it came with is 0106040000000000 which seems to be correct according to many VCDS scans that I was able to verify against.
- This coding throws the following error however on my unit:

02588 - Swiveling Trailer Hitch
005 - No or Incorrect Basic Setting / Adaptation - MIL ON
Freeze Frame:
Fault Status: 11100101
Fault Priority: 2
Fault Frequency: 1
Reset counter: 221
Time Indication: 0

- When I change the coding to 0106000000000000, this error goes away, but the swiveling button in the boot does NOT light up as intended when opening the hatch and the no response when pressing the button either (tow hook does not move).

I am sure that in order for everything to operate as intended, the original coding needs to be reinstated. Just curious for clues as to where to start my fault finding mission.

Attaching full scan for completeness' sake:
Code:
Monday,12,March,2018,12:36:43:24496
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 18.2.0.3 (x64)
Data version: 20180212 DS287.0
www.Ross-Tech.com


VIN: WVGEP9BP9DD005238   License Plate: NG-533-P
Mileage: 113952km-70806mi   Repair Order: N/A



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


Chassis Type: BP-VW52 (7P6)
Scan: 01 02 03 05 08 09 10 15 16 17 19 36 42 46 47 52 53 55 56 5F
          62 65 69 6C 6D 72

VIN: WVGEP9BP9DD005238   Mileage: 113952km-70806miles

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
10-Park/Steer Assist -- 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
36-Seat Mem. Drvr -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
55-Headlight Range -- Status: OK 0000
56-Radio -- Status: OK 0000
5F-Information Electr. -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
65-Tire Pressure -- Status: OK 0000
69-Trailer -- Status: Malfunction 0010
6C-Back-up Cam. -- Status: OK 0000
6D-Trunk Elect. -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine (J623-CNRA)       Labels:. 059-907-401-V2.clb
   Part No SW: 7P0 907 401 K    HW: 7P0 907 401 K
   Component: 3.0TDI EDC17  H19 0003  
   Revision: 56H19---    
   Coding: 292A4032233600050000
   Shop #: WSC 31414 790 00001
   ASAM Dataset: EV_ECM30TDI0117P0907401K 001004
   ROD: EV_ECM30TDI0117P0907401K.rod
   VCID: 377D73278E1234FCE9-8062

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

-------------------------------------------------------------------------------
Address 02: Auto Trans (J217)       Labels:| 0C8-927-750.clb
   Part No SW: 0C8 927 750 AK    HW: 0C8 927 750 AK
   Component: AL1000 AISIN  001 2269  
   Serial number:               
   Coding: 00B168
   Shop #: WSC 25720 002 104857
   ASAM Dataset: EV_TCMAL991031 002114
   ROD: EV_TCMAL991031_002.rod
   VCID: 75E1B92FD49E86EC3B-8020

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:* None
   Part No SW: 7P0 907 379 M    HW: 7P0 907 379 A
   Component: MK25A         H36 0436  
   Revision: --------    Serial number: 420720010EC815
   Coding: 5B7613C349242558DAF6C89692DAA4407300
   Shop #: WSC 31414 790 00001
   ASAM Dataset: EV_MK25AXT 008001
   ROD: EV_ESPMK25A00800.rod
   VCID: 479D03E7FEF2447C99-8012

No fault code found.

-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393)       Labels:. 8K0-907-064-05.clb
   Part No SW: 4H0 907 064 CK    HW: 4H0 907 064 CK
   Component: BCM2 2.0      H32 0421  
   Revision: 00002001    
   Coding: 0D860016000000000000
   Shop #: WSC 31414 790 00001
   VCID: 74E7842BD7E49FE40C-8020

   Subsystem 1 - Part No SW: 4H0 905 852 B    HW: 4H0 905 852 B
   Component: J764 ELV MLB  H40 0046 
   Serial number: 2312000166468013    

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels:| 7P6-907-040.clb
   Part No SW: 7P6 907 040 BK    HW: 7P6 907 040 BK
   Component: Klima 2 Zonen H20 1305  
   Coding: B686000A80
   Shop #: WSC 31414 790 00001
   ASAM Dataset: EV_AirCondiFront 004001
   ROD: EV_AirCondiFront_VW52.rod
   VCID: 7EF3A603E1A8C5B46A-802A

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 4H0-907-063-V1.clb
   Part No SW: 4H0 907 063 BL    HW: 4H0 907 063 D
   Component: BCM1 2.0      H12 0111  
   Revision: 15012002    Serial number: 00000001587520
   Coding: 26005013D33C5F010021100300005D0C431C660882010361000000020000
   Shop #: WSC 31414 790 00001
   VCID: 73E58737D2EA98DC15-8026

   Subsystem 1 - Part No SW: 7P0 955 119     HW: 7P0 955 119   Labels: 1KX-955-119.CLB
   Component: WWS    120711  31  0020 
   Serial number: 90243400120719155436
   Coding: 004DBD

   Subsystem 2 - Part No SW: 7P0 955 559 D    HW: 7P0 955 559 D  Labels: 8K0-955-559.CLB
   Component: RLFS  H09 0011 
   Serial number: 10422770            
   Coding: 025223

   Subsystem 3 - Part No SW: 7P6 941 431     HW: 7P6 941 431 
   Component: E1 - LDS  H02 X024 
   Serial number: 00000000000000000074

   Subsystem 4 - Part No SW: 4H0 907 410 A    HW: 4H0 907 410 A
   Component: USHL4.2  H30 0020 
   Serial number: 0000001805569R17RD07

No fault code found.

-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels:| 7P6-919-475.clb
   Part No SW: 7P6 919 475 B    HW: 7N0 919 475 
   Component: PARKHILFE 8K  H05 0021  
   Revision: --------    Serial number: 28201221200066
   Coding: 500501
   Shop #: WSC 31414 790 00001
   ASAM Dataset: EV_VW526ParkiAssis2 001011
   ROD: EV_VW526ParkiAssis2.rod
   VCID: 428B12F3D5D061544E-8016

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 7P0-959-655.clb
   Part No SW: 7P0 959 655 C    HW: 7P0 959 655 C
   Component: VW10Airbag025 H05 0025  
   Revision: --------    Serial number: 003L0004C2FE
   Coding: 000000000000000000000000000000003235
   Shop #: WSC 31414 790 00001
   ASAM Dataset: EV_AirbaVW10BPAVW526 001001
   ROD: EV_AirbaVW10BPAVW526_001.rod
   VCID: 41891DFFD0D67A4C57-8014

   Seat occupied recognition: 
   Subsystem 1 - Part No SW: 7P6 959 339     HW: 7P6 959 339 
   Component: BF-Gewichtss.  003 0005 
   Serial number: 5850000R1242708SQH

   Crash sensor for side airbag: driver side: 
   Serial number: 3575LRB405P1G7FCE0IO

   Crash sensor for side airbag: front passenger side: 
   Serial number: 3585LRB405N1G7FAG8N-

   Crash sensor for side airbag: rear: driver side: 
   Serial number: 3515RRB40691BBHAG0D5

   Crash sensor for side airbag: rear: passenger side: 
   Serial number: 3525RRB40631BBHABO5B

   Crash sensor for front airbag: driver side: 
   Serial number: 3555NRB405H1GCDMK14M

   Crash sensor for front airbag: front passenger side: 
   Serial number: 3565NRB405H1GCDMEH4X

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:. 4H0-953-568.clb
   Part No SW: 4H0 953 568 H    HW: 7P6 953 507 M
   Component: Lenks.Modul   H03 0005  
   Revision: --------    Serial number: 90815LHE0001R 
   Coding: 000C15
   Shop #: WSC 31414 790 00001
   VCID: 387F701B8B0C3B84E0-806C

   Subsystem 1 - Part No SW: 7P6 959 542     HW: 7P6 959 542 
   Component: E221__MFL-TAS  H03 0027 
   Serial number: 0205586             

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 7P6-920-xxx-17.clb-SRI1
   Part No SW: 7P6 920 981 F    HW: 7P6 920 981 F
   Component: Kombi         H13 0318  
   Revision: 13240077    Serial number: 658100812592034
   Coding: 937F33022B00000D0D0004
   Shop #: WSC 31414 790 00001
   ASAM Dataset: EV_KombiUDSRBVW526 001017
   ROD: EV_KombiUDSRBVW526.rod
   VCID: 408F18FBDBDC734458-8014

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels: None
   Part No SW: 7P6 907 530 F    HW: 7P6 907 530 F
   Component: GW-CAN-L-MOST H11 6028  
   Revision: --------    Serial number: 00000000640596
   Coding: 0001037500
   Shop #: WSC 31414 790 00001
   ASAM Dataset: EV_GatewVW526UDS 001007
   ROD: EV_GatewUDS_VW52.rod
   VCID: 3B756F17B23A109C0D-806E

   Battery Monitoring Control Module: 
   Subsystem 1 - Part No SW: 7P0 915 181 A    HW: 7P0 915 181 
   Component: Batt_Sensor  H07 0140 
   Serial number: 00000000005650870006

No fault code found.

-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr (J136)       Labels: None
   Part No SW: 4H0 959 760 D    HW: 4H0 959 760 D
   Component: MEM-FS        H08 0153  
   Revision: AA000000    Serial number: 00000036097170
   Coding: 00581B0000004001000001010101202020202121202020
   Shop #: WSC 31414 790 00001
   VCID: 3467442B9764DFE4CC-8060

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels: None
   Part No SW: 4H0 959 793 N    HW: 4H0 959 793 F
   Component: TSG FA        H07 0166  
   Revision: --------    Serial number: 0000129654031 
   Coding: 011D17205E00453005080000
   Shop #: WSC 31414 790 00001
   VCID: 448714EBC7C46F647C-8010

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. (J393)       Labels:. 4H0-907-064-46.clb
   Part No SW: 4H0 907 064 CK    HW: 4H0 907 064 CK
   Component: BCM2 2.0      H32 0421  
   Revision: 00002001    Serial number: 0181915902    
   Coding: 01061E3A28B9509581A00620210000000000000000000000000000000000
   Shop #: WSC 31414 790 00001
   VCID: 74E7842BD7E49FE40C-8020

   Subsystem 1 - Part No SW: 7P6 959 719     HW: 7P6 959 719 
   Component: GTO BT  H19 0059 
   Serial number: 2001216179          

   Subsystem 2 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HO  H05 1501 

   Subsystem 3 - Part No SW: 7P0 959 591 B    HW: 7P0 959 591 B
   Component: J245 PS30.055  H01 0008 
   Serial number:     WOO17569338     
   Coding: 191100

   Subsystem 4 - Part No SW: 7P0 959 591 C    HW: 7P0 959 591 C
   Component: J394 PS30.055  H01 0008 
   Serial number:     WOO1760203-     
   Coding: 191100

No fault code found.

-------------------------------------------------------------------------------
Address 47: Sound System (J525)       Labels:. 8T0-035-223-BOM.clb
   Part No SW: 7P6 035 466     HW: 7P6 035 466 
   Component: DSP Prem      H01 0090  
   Revision: 00001001    Serial number: 10811001781006
   VCID: 75E1B92FDC9E86EC3B-8020

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels: None
   Part No SW: 4H0 959 792 F    HW: 4H0 959 792 F
   Component: TSG BF        H07 0166  
   Revision: --------    Serial number: 0000129631771 
   Coding: 011D17205E00453005080000
   Shop #: WSC 31414 790 00001
   VCID: 3B756F17BA3A109C0D-806E

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake (J540-)       Labels:| 7P0-907-801.clb
   Part No SW: 7P0 907 801 F    HW: 7P0 907 801 F
   Component: EPB           H51 1201  
   Revision: 00000000    Serial number: C1273000265   
   Coding: 01040200
   Shop #: WSC 31414 790 00001
   ASAM Dataset: EV_ParkbA7 000006
   ROD: EV_ParkbA7.rod
   VCID: 36637E238918CDF4F2-8062

   Slave 3: 

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range (J745)       Labels:. 7P6-907-357.clb
   Part No SW: 7P6 907 357     HW: 7L6 907 357 C
   Component: AFS-ECU       H04 0110  
   Revision: --------    Serial number: --------------
   Coding: 010A00010F000400
   Shop #: WSC 31414 790 00001
   ASAM Dataset: EV_HeadlRegulVWAFS 005006
   ROD: EV_HeadlRegulVWAFS_VW52.rod
   VCID: 7CF7AC0BF7B4D7A444-8028

   Left_headlamp_power_output_stage: 
   Subsystem 1 - Part No SW: 8U0 941 329     HW: 8U0 941 329   Labels: 3D0-941-329.CLB
   Component: LeiMo links  H01 0002 
   Coding: 130000

   Right_headlamp_power_output_stage: 
   Subsystem 2 - Part No SW: 8U0 941 329     HW: 8U0 941 329   Labels: 3D0-941-329.CLB
   Component: LeiMo rechts  H01 0002 
   Coding: 130000

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (R)       Labels: Redir Fail!
   Part No SW: 4G0 035 082 G    HW: 4G0 035 082 
   Component: Radio U SIRIU H60 0133  
   Revision: AB001007    Serial number: 156G30C7618908
   Coding: 020007010000000001
   Shop #: WSC 31414 790 00001
   VCID: 2447B46B27844F645C-8070

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:. 4E0-035-6xx-5F.clb
   Part No SW: 7P6 035 664 K    HW: 7P6 035 664 
   Component: H-BN-NA       H45 0934  
   Revision: --------    Serial number: 445H00C7539290
   Coding: 020100060040E1FF4302BF0E00000003100001000100000000
   Shop #: WSC 31414 790 00001
   VCID: 408F18FBD3DC734458-8014

   Subsystem 1 - Part No: 7P6 060 884 G
   Component: EUR 2017  2402 

   Subsystem 2 - Part No SW: 7P6 919 603     HW: 7P6 919 603 C
   Component: DU8 SV Touch  H26 0045 
   Serial number: VWZ8Z9M7900ET9      

   Subsystem 3 - Part No SW: 7P6 919 603 C    HW: 7P6 919 603 C
   Component: DU8 SV Touch  H26 0045 
   Serial number: VWZ8Z9M7900ET9      

   Subsystem 4 - Part No: 8R0 060 961 
   Component: CD-Database  1886 

2 Faults Found:
03175 - Invalid Data Set 
            000 -  - 
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 220
                    Mileage: 113896 km
                    Time Indication: 0
                    Date: 2018.03.11
                    Time: 18:43:56

             Freeze Frame:
                    Voltage: 11.90 V

03623 - Invalid Secruity/Release Code 
            000 -  - 
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 220
                    Mileage: 113896 km
                    Time Indication: 0
                    Date: 2018.03.11
                    Time: 18:43:57

             Freeze Frame:
                    Hex Value: 0x0004
                    Hex Value: 0x0405
                    Count: 7


-------------------------------------------------------------------------------
Address 62: Door, Rear Left (J388)       Labels: None
   Part No SW: 4H0 959 795 B    HW: 4H0 959 795 B
   Component: TSG HL        H09 0167  
   Revision: --------    Serial number: 0000129366151 
   Coding: 011C17200000253005080000
   Shop #: WSC 31414 790 00001
   VCID: 3A7B6A13B500299416-806E

No fault code found.

-------------------------------------------------------------------------------
Address 65: Tire Pressure (J502)       Labels: 3Y0-907-273.clb
   Part No SW: 7P6 907 273 F    HW: 7P6 907 273 F
   Component: RDKBERU25     H09 0008  
   Serial number: 10000000089459
   ASAM Dataset: EV_RDKBERU25 003006
   ROD: EV_RDKBERU25_VW52.rod
   VCID: 3F8D1B07A6220CBC21-806A

No fault code found.

-------------------------------------------------------------------------------
Address 69: Trailer (J345)       Labels: None
   Part No SW: 7P0 907 383 C    HW: 7P0 907 383 C
   Component: Anhaenger     H07 0073  
   Revision: 5H001003    Serial number: 00000125889014
   Coding: 0106040000000000
   Shop #: WSC 31414 790 00001
   VCID: 387F701B8B0C3B84E0-806C

1 Fault Found:
02588 - Swiveling Trailer Hitch 
            005 - No or Incorrect Basic Setting / Adaptation - MIL ON
             Freeze Frame:
                    Fault Status: 11100101
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 221
                    Time Indication: 0


-------------------------------------------------------------------------------
Address 6C: Back-up Cam.        Labels: 4L0-910-441.clb
   Part No SW: 7P6 907 441 A    HW: 4H0 907 441 
   Component: SG Rueckfahrkamera  0020  
   Revision: 00H06000    Serial number: 525 PA8J271159
   Coding: 0130001
   Shop #: WSC 31414 790 00001
   VCID: 377D7327461234FCE9-8062

No fault code found.

-------------------------------------------------------------------------------
Address 6D: Trunk Elect. (----)       Labels:| 7N0-959-107.clb
   Part No SW: 7P6 959 107 A    HW: 7P6 959 107 
   Component: HDSG-Modul    H10 0620  
   Revision: 22010001    Serial number: 215200467
   Coding: 0533314003
   Shop #: WSC 31414 790 00001
   ASAM Dataset: EV_HeckkTouar 202137
   ROD: EV_HeckkTouar.rod
   VCID: 3D71610FAC2E1EAC33-8068

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right (J389)       Labels: None
   Part No SW: 4H0 959 795 B    HW: 4H0 959 795 B
   Component: TSG HR        H09 0167  
   Revision: --------    Serial number: 0000129582522 
   Coding: 011C17200000253005080000
   Shop #: WSC 31414 790 00001
   VCID: 3A7B6A13B500299416-806E

No fault code found.

End-------------------------(Elapsed Time: 05:02)--------------------------
 
   #2  

GaSelle

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Haven´t "played" with such a towbar; but to me, it looks like some missing calibration. Are there any options to carry out a calibration?
 
   #3  

NEtech

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Try and download these 2 files:
7P-69.lbl
4H0-907-383-V1.clb
and copy them to:
C:\Ross-Tech\VCDS\Labels\User

Then check in [69] controller, if it is possible to do [Output Test-03] and select the only "Selective Output Tests" that is available
"Swivel Motor: Initialisation"
 
   #4  

golfi_vend

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Label file says .lbl, but file itself is .clb. Is this a typo?
 
   #5  

NEtech

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Label file says .lbl, but file itself is .clb. Is this a typo?
Yes it is, I have changed the 7P-69.lbl now.
But it should load correct anyway, if I recall right.
 
   #6  

flyingpenguin

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Thanks for the suggestion.

Only got to it just today and label file that is confirmed to be used is USER\4H0-907-383-V1.clb but "Selective Output Tests" remains greyed out..

Looking forward your continued and valued support.
 
   #7  

NEtech

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Thanks, I just found a bug in VCDS, or it is a "feature" unknown to me :confused:
Try and download the same file again, same name it is updated know and then test again.
Now there should be 2 "Selective Output Tests"

Intern ref.: FS#1495
 
Last edited:
   #8  

flyingpenguin

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Hi NEtech, Thanks much for your help. I feel we are making progress, but not there yet entirely;
- "Swivel Motor: Initialisation" errors out "This output is not supported by control module" with Error code 7F 22 31
- "Dont think this can be used!" actually unlocks the swiveling tow hook (in both in or out position, so kind of useful at this stage where I can now manually swing the hook in or out (the wife and her shins are thankful!).

Curious what else we can try. :-)

RGds, JP
 
   #9  

NEtech

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Maybe try:
"Dont think this can be used!"
Then:
"Swivel Motor: Initialisation"
Then move swiveling tow hook, manually out and then back.
 
   #10  

flyingpenguin

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Hi NEtech,

Followed your suggestion and am noting that upon unlocking (with "Dont think this can be used!") the LED in the trunk space button for the towhook is blinking; at least it knows that the unit is unlocked and shows the correct warning.

Activating "Swivel Motor: Initialisation" immediately errors out as before with code 7F 22 31. Manually swiveling in and out does not do anything except that the towhook locks into place on full in and full out (requiring unlocking each time).

A full scan does not reveal any errors in 69 - Trailer:

-------------------------------------------------------------------------------
Address 69: Trailer (J345) Labels: User\4H0-907-383-V1.clb
Part No SW: 7P0 907 383 C HW: 7P0 907 383 C
Component: Anhaenger H07 0073
Revision: 5H001003 Serial number: 00000125889014
Coding: 0106040000000000
Shop #: WSC 31414 790 00001
VCID: 387F701B8B0C3B84E0-806C

No fault code found.


Supp. Codes - 18 on 69 - Trailer reveals the following active fault code though: DTC 02025 / failure mode 007.

I think this points towards a potential wiring problem to the swivel motor. Time to remove bumper cover (again!) and go on a fault finding mission..
 
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   #11  

flyingpenguin

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Hello again. Picking up where I left off last year.
Went over the wiring diagram again for the J345 trailer module.



The "V317 Ball hitch swiveling motor" and "G473 Trailer hitch motor position sensor" are connected to the "J345 Towing recognition control module" via a 24 pin connector.

There appear to be 2 types of J345 modules that fit my 2013 7P Touareg:

The 7P0-907-383-C (that I have) with the large connector coming from the towbar being 18 pins:



and the 4H0 907 383 L, with the large connector coming from the towbar being 24 pins (as described in the wiring diagram above):


I am wondering if my troubles are a result of this mix-up. Any comments are welcome.
 
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MartinsX

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Did You get from junkyard complete set, all parts removed from one car? (Mechanical parts, control module and wiring loom)?
 
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flyingpenguin

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I did. complete set removed from 2013 7P Touareg...

Also followed Bigbigtom's suggestion over at mytreg.com to use coding 0100000202000000, which was not accepted. As of yet do not know which exact module Bigbigtom actually has installed. I suspect that the older units need 2nd binary location to be 00 instead of 06.

Would be helpful to obtain the correct wiring diagram for the 7P0-907-383-C (based on T16 + T12 + T12 connectors)..
 
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MartinsX

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If You still can get VIN from donor car, WD in Erwin by this VIN should be correct for Your parts set ;)
 
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flyingpenguin

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My thought too, but impossible to retrieve donor vehicle VIN. Will try to locate VIN of Trailer equipped 2013 7P and check ERWIN.
 
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Dino20vt

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I had the same issues with the basic calibration code when i fitted the factory fit Swivelling towbar to an 4F A6 MY2011 which uses what looks like the same control module (Actually Westfalia made). I found the westfalia instructions fairly useful as their own aftermarket kit used the same controller and was wired the same as the factory fitted unit. Not sure if this applies exactly the same as yours but here is the instructions i think for your 7P (https://www.pfjones.co.uk/westfalia_fitting/321765300113.pdf).

I found that I had a microswitch that was stuck on my set up which wasnt registering the towbar as locked in place. Once you get to the point of having the red flashing light on the control you should be able to use Measuring Blocks to observe the microswitch statuses to check wiring and function. Once the switch was working on mine cycling it manually a few times cleared the fault and the light on my control went to a steady green. The towbar release on mine is a manual knob however, i believe yours is electric but hopefully the same principle applies.

Dean
 
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flyingpenguin

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Thanks Dino20vt! The further I dig, though, the more I am leaning towards incorrect pin-outs from the trailer control unit (J345) to the trailer hitch release button (E754 / part# 7P6 959 511 J). On a Russian site there is mention of section 19 in the Touareg 7P wiring diagram that is missing from my version purchased through erWin. If anyone would be willing to share that particualr section 19 for my perusal, that would be much appreciated..
 
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flyingpenguin

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Turns out erWin has an option to pay €7 for one hour access. Just enough to download the relevant diagrams.. digging further.
 
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