VW T5.1 Trailer Coding Problem. Help Please.

[martinandpippa]

Hi, been using VCDS for a few years but never got round to needing to code things, however I've just fitted a towbar and dedicated vehicle electrics to a 2014 T5.1. Successful installation and all lights work, the trailer shows on the 'Radio' screen when connected and sensors are inhibited so pretty happy. However! When I use a trailer light board to test the 'Bulb Out' sensing, I don't get any indication on the MFD that I have removed a bulb. Without the trailer the 'Bulb Out' sensing works as it should.
The dedicated electrics kit was purchased from P.F.Jones in UK, and the kit is made by ConWys of Switzerland. All the reviews say that this is a perfectly good dedicated wiring kit.
I have included an Auto Scan. In particular, I added module 69 (Trailer)to the Gateway, and adapted the coding in 10(Park/Steer Assist) to show 'trailer hitch installed'.
I have received some help from Ross Tech support which suggested I change the coding of module 69, however, when I go to try and access module 69 it requires a Security Access code before it will allow access to coding. When I hover over the security access box I don't get any 'pop up' as I would expect. Is this because Ross Tech does not have any suggestions? I have tried 12345 but that didn't work either.
Please could someone suggest how I find a security code to use to get into the trailer coding so I can try the coding Ross Tech have suggested.
Any other ideas about how to make the 'Bulb out' system work on the trailer would be appreciated.
Regards and Thanks. New to the Forum. Martin.

Monday,04,November,2019,17:18:49:27292
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 19.6.2.0 (x64)
Data version: 20190930 DS308.0
www.Ross-Tech.com


VIN: WV1ZZZ7HZFH045096   License Plate: HJ64KUT
Mileage: 111130km-69052mi   Repair Order: 



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


Chassis Type: 7H-VN75 (6N0)
Scan: 01 03 04 08 09 10 15 17 19 25 37 56 69

VIN: WV1ZZZ7HZFH045096   Mileage: 111130km-69052miles

01-Engine -- 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: OK 0000
10-Park/Steer Assist -- Status: OK 0000
15-Airbags -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
37-Navigation -- Status: OK 0000
56-Radio -- Status: OK 0000
69-Trailer -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine (J623-CAAC)       Labels:. 03L-906-022-CAA.clb
   Part No SW: 03L 906 019 GH    HW: 03L 907 309 M
   Component: R4 2,0L EDC   H45 8437  
   Revision: 26H45---    Serial number: 00000000000000
   Coding: 01194012232400080000
   Shop #: WSC 00534 210 00000
   ASAM Dataset: EV_ECM20TDI01103L906019GH 003006
   ROD: EV_ECM20TDI01103L906019FM_003.rod
   VCID: 77FDEB59CEA7D8F796-8022

1 Fault Found:
4807 - EGR System 
          P0401 00 [096] - Insufficient Flow
          Intermittent - Not Confirmed - Tested Since Memory Clear

Readiness: 0 0 0 0 0 

-------------------------------------------------------------------------------
Address 03: ABS Brakes (-----)       Labels: 7E0-907-37x-MK25AXT.clb
   Part No SW: 7E0 907 379 K    HW: 7E0 907 379 E
   Component: ESP MK25A XT  H43 0110  
   Revision: 00H43001    
   Coding: 508724AD89A80A9A24A2917AA96410
   Shop #: WSC 02737 790 49152
   VCID: 3A7B326DB535059FA9-806E

No fault code found.

-------------------------------------------------------------------------------
Address 04: Steering Angle (G085)       Labels:* 6R0-959-654.clb
   Part No SW: 6R0 959 654     HW: 6R0 959 654 
   Component: LENKW.SENSOR  H07 0070  
   Serial number: 21081404650212
   Coding: 01
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_LWSKLOVW25X 005001
   ROD: EV_LWSKLOVW25X.rod
   VCID: 7EF3FE7DE19DE9BFD5-802A

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J301)       Labels:| 7E5-907-047.clb
   Part No SW: 7E5 907 047 BG    HW: 7E5 907 047 BG
   Component: Climatic-T5   H20 0506  
   Revision: 00001012    
   Coding: 0000000002
   Shop #: WSC 02737 790 50316
   ASAM Dataset: EV_ClimaticT5 A01003
   ROD: EV_ClimaT5Basis.rod
   VCID: 75E1E151D4ABAAE784-8020

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 7H0-937-08x-09.clb
   Part No SW: 7H0 937 087 P    HW: 7H0 937 087 
   Component: BCM T5GP H+4  H34 0424  
   Revision: BO034001    Serial number: 0673 251140050
   Coding: A0A4303A0A613431922848106C2B8C540080632F60840000320000000800
   Shop #: WSC 02739 790 12345
   VCID: 41894581D8E35647E8-8014

   Subsystem 1 - Part No SW: 7E0 959 801 L    HW: 7E0 959 801 L  Labels: 7E0-959-80X-V2.CLB
   Component: J386__TSG_FT  003 8653 
   Serial number: KU0KU005091442485173
   Coding: 1000B1

   Subsystem 2 - Part No SW: 7E0 959 802 L    HW: 7E0 959 802 L  Labels: 7E0-959-80X-V2.CLB
   Component: J387__TSG_BT  003 8653 
   Serial number: KU0KU010091442537027
   Coding: 0000A1

   Subsystem 3 - Part No: 7E1 951 172 
   Component: DWA-Sensor 00  001 0104 
   Coding: 000000

   Subsystem 4 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HO  H05 1501 
   Coding: 000000

   Subsystem 5 - Part No: 7E1 951 172 
   Component: DWA-Sensor 00  001 0104 
   Coding: 000000

   Subsystem 6 - Part No SW: 3C8 959 537 D    HW: 3C8 959 537 D  Labels: 3C8-959-537.CLB
   Component: E221__MFL-TK6  H07 0023 
   Serial number: 70000000000000799490
   Coding: E20000

No fault code found.

-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels:| 7E0-919-475.clb
   Part No SW: 7E0 919 475 L    HW: 7N0 919 475 
   Component: PARKHILFE 8K  H06 0106  
   Revision: --------    Serial number: 28261420400910
   Coding: 118004
   Shop #: WSC 02739 790 50316
   ASAM Dataset: EV_VW75XParkAssis8K 001003
   ROD: EV_VW75XParkAssis8K_001_VN75.rod
   VCID: 3B753769B20F3C97B2-806E

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 5K0-959-655.clb
   Part No SW: 7E0 959 655 B    HW: 7E0 959 655 B
   Component: VW10Airbag009 H07 0013  
   Revision: --------    Serial number: 003HL00SDTWE
   Coding: 000000000000000000000000000000003039
   Shop #: WSC 02734 790 50316
   ASAM Dataset: EV_AirbaVW10BPAVN750 A01026
   ROD: EV_AirbaVW10BPAVN750_VW12.rod
   VCID: 35612151942BEAE744-8060

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:| 5K0-920-xxx-17.clb-SRI1
   Part No SW: 7E0 920 970 N    HW: 7E0 920 970 N
   Component: KOMBI         H03 0805  
   Serial number: 00000000000000
   Coding: 160A00
   Shop #: WSC 12345 123 12345
   ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04727
   ROD: EV_Kombi_UDS_VDD_RM09_004_VW32.rod
   VCID: 35612151942BEAE744-8060

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 6N0-909-901-6R.clb
   Part No SW: 6N0 909 901     HW: 7H0 937 087 
   Component: GW-K-CAN TP20 H34 0424  
   Revision: BO034001    
   Coding: 042300
   Shop #: WSC 02739 790 12345
   VCID: 70EFD045A3C98FCF57-8024

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
   Part No SW: 5K0 953 234     HW: 5K0 953 234 
   Component: IMMO          H03 0805  
   Serial number:               
   Coding: 000000
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03710
   ROD: EV_Immo_UDS_VDD_RM09.rod
   VCID: 6ADBC22D8D15751F19-803E

No fault code found.

-------------------------------------------------------------------------------
Address 37: Navigation (J794)       Labels:| 1K0-035-27x-37.clb
   Part No SW: 3C8 035 279 R    HW: 3C8 035 279 R
   Component: RNS315-EU   H80 0500  
   Serial number: VWZAZ2P0470904
   Coding: 000002110200140000039002
   Shop #: WSC 02734 790 50316
   ASAM Dataset: EV_RNS315EUV2UDS 001705
   ROD: EV_RNS315EUV2UDS.rod
   VCID: 3A7B326DBD35059FA9-806E

   Data medium: 
   Subsystem 1 - Part No: 3AA 919 866 
   Component: EUR_W_V6  0062 

No fault code found.

-------------------------------------------------------------------------------
Address 69: Trailer (J345)       Labels:. 1K0-907-383-V2.clb
   Part No SW: 1K0 907 383 F    HW: 1K0 907 383 F
   Component: ConWysTrailer H07 0100  
   Revision: 3A001001    Serial number: 00000132425721
   Coding: 0100000100000000
   Shop #: WSC 00007 223 174336
   VCID: 306F10456349CFCF17-8064

No fault code found.

End-------------------------(Elapsed Time: 02:37)--------------------------

 

[iichel]

Looks like a third-party module, perhaps you can contact them to see if their module is capable of light diagnostics.

 

[NEtech]

So is this what you are trying,
You enter this coding: 410D000100000000
and then a VCDS window comes up, where it says, a security access is needed ?

I have only seen this coding for ConWysTrailer module on T5: 0100000100000000

Is the part number on trailer module: 12270548C ?

What bulb do you remove ?

 

[martinandpippa]

Firstly, many thanks for your answers and advice. I am learning fast and very grateful for the help. Just to clear up your questions NEtech, my question about changing the coding in ’69 Trailer’ is that when I open 69 all the Advanced Options are greyed out with the exception of ‘Security Access 16’, which, if I open it, requires a code, and nothing comes up if I ‘hover’ over it? That said, I am beginning to think you are right with the coding as it is, and my problem is elsewhere.
So I need to eat a bit of ‘Humble Pie’, and explain a bit more background. I bought this van 3 weeks ago, and my first priority was to fit a towbar as I need to tow a trailer. Installation went well, indeed all works well, including all the lights. I have also discovered that the indicator substitution aspect of the towbar electrics works ( If I remove a trailer indicator bulb, the adjacent stop/tail light flashes instead), and the reverse sensors are inhibited, and ‘trailer attached’ shows on the radio screen as it should.
So all is good except the ‘bulb failure’ side of things.
Back to basics, I removed the trailer and tested the van itself for ‘bulb failure’. NOTHING!!
And what’s worse is that since I have only had the van 3 weeks, I don’t know if the system worked before I started playing with the towbar electrics!
So that’s when I looked closer and noticed that the previous owner had fitted LED bulbs to the Daylight Running Lamps, and the Side lights. The headlights and front foglights are blue, and probably Xenon. All rear bulbs are conventional. Yet I was getting no warnings at all. So I am wondering if the previous owner has inhibited the ‘bulb failure’ system when fitting LED bulbs? I immediately replaced the LED bulbs with conventional bulbs. No change.
So in to VCDS, Central Electrics. No fault codes, so looking in to any Long Coding Bit that might relate to ‘Lamp Diagnostics’. None of the available Bits were ticked? But then, I don’t know which ones should be ticked? Bytes 16 and 19 have options, but should I tick them and change the coding? Or is there something else I should check that may have been used to inhibit the ‘bulb failure’ system?
I don’t even know what the ‘bulb failure’ system should be doing on a T5.1?? I have 2 Mk6 Golfs. A Mk7 Golf, a Tiguan and an Eos, and they all tell you as soon as any bulb fails.
Once again, thanks for your patience. Any help or suggestions would be much appreciated.

 

[NEtech]

Well there are many combinations.
For a start, you could test this coding for [09]

A0A4303A0A613431922848F06C2B8CD4F780612F60840000320000020800

Specific, Byte 11, 16, 18, 19, 27
It seems heated rear window, has been disabled for some reason, Byte 15.

 

[martinandpippa]

Many thanks for the suggested coding. I am beginning to feel either frustrated or stupid! I've just re-coded [09]to the long code you sent and still no bulb failure warnings. I wonder if my way of testing is wrong?? I am removing the bulb (headlight in this case)from the connector. Is this a viable way of testing the system on this 2014 vehicle? I've just done the same thing on a 2011 Mk6 Golf and it works exactly as I would expect -immediately you turn the ignition on the amber bulb light comes on and the MFD tells you which bulb it is.
Also, I notice that the coding you sent me does not check Bits 4, 6 , or 7 in Byte 19. Is this normal? I would have thought that warning of a Turn light, tail light or brake light failure was desired?
Anyway. I still have no indication of a bulb failure. Am I testing correctly please?

 

[NEtech]

Byte 19 is like your coding.
Bit 4, 5, 6, 7 mean lamp diagnosis NOT active.
Please use long coding help.

Try and remove battery connection 20 minutes.

 

[martinandpippa]

Many thanks for your last suggestion. I disconnected the battery for 30 mins but no change I’m afraid. I am a bit confused by your ‘NOT’ comment. I may have got this all wrong, but when you use the Long Coding Helper and look at a Byte, it shows several Bits. If a Bit is ‘Blue’, does that mean it is active and being used? In particular, for this issue, I am in [09] Central electrics, Byte 19, and this vehicle has 4 available Bits. Namely 4,5,6 and 7.
The long coding you sent me, which I am using for [09] Central Electrics, has Byte 19, Bits 4,6 and 7 with no tick in the box and grey. Bit 5 is ticked and blue.( Lamp Diagnostics for Fog Lights and/or Cornering Turn Lights) This vehicle has Fog Lights and they work as cornering lights too.
My question was, shouldn’t I have Bits 4,6 and 7 ‘ticked and blue’, as they are:-
4.Lamp Diagnostics for Turn Lights Active
6.Lamp Diagnostics for Tail Lights Active
7.Lamp Diagnostics for Brake Lights Active.
There is no 'NOT' word in the Bit description??
And my last question is, Is removing a bulb an effective way of testing this system? I have just tried removing a bulb from a headlight on a 2011 Mk6 Golf and as soon as you turn the ignition on and the car does it’s scan, it pops up with a bulb fail light, and the MFD tells me which one it is, but when I do the same thing on the 2014 T5.1, or a 2015 Tiguan I have, I don’t get a warning??? Is the newer vehicle using a more sophisticated resistance based sensing system? Is there a better way of ‘simulating’ a bulb failure to test the system?
Sorry to keep asking all these questions. I am learning a great deal about VCDS and my VW’s, and hopefully people following this post may be likewise.
Thanks. Martin.