|
Post by golf75retrofit on Jan 21, 2024 14:12:45 GMT
Hi, long time reader, first time poster, so thanks in advance for any help.
Vehicle is a RHD (UK) 2019 eGolf (Mk7.5), it's pretty high spec already, I believe it has the High gateway, but M+ BCM.
I've recently been undertaking a few retrofit upgrades (RVC-Low to High, Direct TPMS and PLA3.0 12k)
I've run into problems trying to add the TPMS and RVC-High to the gateway, I've set the relevent addaptions in the installation list to "coded" and added the modules to the gateway coding list, however both units show as black circles indicating no communication rather than green or red. Upon entering these module in the app I am unable to connect. Gateway Module 19 also raises faults for communication failures with these two new modules.
I'm concerned the gateway may be maxed out as I've read the high gateway can only support 20 physical modules. My scan currently reports on 30 modules.
Is there an easy way to tell if my gateway is maxed out?
Thanks in advance, G
|
|
|
Post by dv52 (Australia) on Jan 22, 2024 11:53:06 GMT
G: Hi. Hmm..........this is the CAN bus set-up on MQB platform cars (like your mk7.5 golf)
J533 in my diagram is the Gateway module.
Notice that there are 5 x separate CAN buses in these cars -other than the Diagnostic CAN bus that OBD11 uses.
Where did you read that "the high gateway can only support 20 physical modules"? And if this is true (which I very much doubt) how is it possible that your "scan currently reports on 30 modules"?
And, you say "both units show as black circles". If the circles are indeed black - it means that the control units are successfully installed into the Gateway Installation list - but they are not reachable. Maybe check that the modules are receiving power, that the earth pins are good and also check that the polarity of the CAN high/low lines are correctly connected
Don
|
|
|
Post by golf75retrofit on Jan 22, 2024 20:37:13 GMT
Hi Don,
Thanks for your reply,
I'll start with the RVC as I've done more fault finding on that, the CAN lines are currently wired to pins 6&12 on the blue connector for the Quadlock on the MIB(2.5) unit.
I'll be totally honest I'm not sure if that's on the Convenience or infotainment bus, I was following a guide by mr-fix.
I've checked both the power and ground, power is via an existing line as I previously had RVC low wired in and it was working prior to this install, the ground is currently temporarily rigged up to the tailgate earth for testing. I've got voltage, and I've continuity tested the CAN lines back to the MIB to be sure they're the right way around and not broken.
I did try swapping them too just for completeness but still no dice.
On the 20 modules, it was something I read online about Low/Medium/High modules supporting so many modules, as you say I've already got 30 modules so it didn't make much sense, but when you can't get something to work you start to fear the worst and come up with convoluted ways it could be true. Glad it sounds like it's not as running the cables was a mission.
Wondering if there's something I'm missing, could be a dead unit, but seemed odd that I had same problem with 2 different modules. I've done a few bits of coding but this is the first time I've added modules so concerned I missed a step maybe. So much info on the internet, never sure what to trust, I read somewhere that Gateways are locked for adding new modules on certain MQB models? No idea If that's true.
|
|
|
Post by dv52 (Australia) on Jan 23, 2024 2:49:31 GMT
I'll start with the RVC as I've done more fault finding on that, the CAN lines are currently wired to pins 6&12 on the blue connector for the Quadlock on the MIB(2.5) unit.
I'll be totally honest I'm not sure if that's on the Convenience or infotainment bus, I was following a guide by mr-fix. hmm....... I don't think so!!! This is how the High-line camera is wired (ignore the Low-line diagram)
Notes: - I've highlighted in blue the general functions of the 7 x RVC wires (broadly, 3 x wire-pairs and a switch-ON/OFF wire).
- J794 in my diagram = MIB.
- Not sure if you are familiar with VW wiring nomenclature - but a notation like T12 /6 means pin #6 on a connector that has a total of 12 x pin positions
Notice that the camera coaxial video wires and the CAN wires are both terminated on the MIB on pin #6 & pin #12 on 2 x separate 12 x pin connectors. The MIB has three 12 x pin connectors colored Blue, Grey and Green.
This is a picture of the Quad-connector (taken from my MQB test-bench)
In my photo: - The coaxial video wires are terminated on the BLUE connector - see the White and Black (this is the coax-sheath) wires
- The CAN wires are terminated on the GREY connector (I've indicated the CAN-pair with an arrow).
Don PS: the CAN connections are made on the Infotainment CAN bus. It's important that the polarity of the CAN wires is maintained (i.e. CAN-High on the MIB is connected to CAN-High on the RVC and same for CAN-Low terminations)
|
|
|
Post by golf75retrofit on Jan 23, 2024 8:17:18 GMT
Hi Don
Apologies, mistake in my response, the CAN wires are terminated on on the Grey connector, not blue as I stated. However on further inspection it appears I flipped the connector when I turned it over and accidentally tapped T12/1 & 7 rather than 6 & 12.
The video connections I haven't touched as they were already present.
I've fixed that and I can now access the camera, thanks a lot, sometimes you need a push to check it a 3rd time.
I'm getting a few fault codes on it including B201000, I'll do some research as I've seen stuff about that before on the forum I think.
I'll have a look at the TPMS wiring later.
Thanks again for your help!
|
|
|
Post by golf75retrofit on Jan 23, 2024 21:00:49 GMT
We're getting battered by storms here so won't be looking at the TPMS today. I'm getting fault B201000 "no basic setting" on the 6C module, I wanted to check the vehicle parameters are set correctly, I've been through and checked my equipment all matches up, but I'm not sure what the following settings should be set as; I also get U112100 "databus missing message", so presumably I've got an equipment mismatch somewhere where it's expecting to hear from another module and isn't? I've not got faults on any other modules. G
|
|
|
Post by dv52 (Australia) on Jan 23, 2024 22:51:57 GMT
Maybe include a SCAN report for this car in a post (as an attachment). If you are not aware how to digitize the SCAN data, read HERE
Don
|
|
|
Post by golf75retrofit on Jan 24, 2024 7:37:33 GMT
Hi,
Yes I had read that post, with regards to the specific coding parameters I asked about mr-fix in his video states what he thinks the numbers are but I haven't been able to find a source, and in any case as I have an e-golf I wasn't sure if it would have a different derivative number.
The seller I bought the camera from (yes it's an Ali express camera) claimed it would be parameterised for Golf MK7, so I assumed like in the video I wouldn't get any fault codes as it would have been calibrated.
I've messaged the seller who's pointed me to a few links on the calibration procedure, so looks like I was wrong about it being plug-and-play with a bit of coding.
Is parameterisation the same as calibration, and are the basic settings input manually or are they from the calibration process?
I'll post up a scan later, I presume I'd need to add the adaptions/basic settings for it to be any use? Is it best practice to put the entire car scan up or just the affected module?
Thanks, G
|
|
|
Post by dv52 (Australia) on Jan 24, 2024 19:44:59 GMT
Is parameterisation the same as calibration ^^^hmm......... NO, paramaterisation and calibration are different. A good way of understand the former is think about how your car fits into the stable of vehicles that roll-off the VAG (being - Audi, Cupra, Jetta, SEAT, Škoda and Volkswagen) production line.
Your Golf mk7/mk7.5 is built with a MQB platform. MQB platform is much more than just a set of technical design characteristics - it's an existential commercial strategy for the parent company that standardizes lots of stuff across a the entire spectrum of vehicle brands. This means that VAG markets and sells MQB platform vehicles with brand labels Audi, Cupra, Jetta, SEAT, Škoda and Volkswagen!!
So, under the umbrella of MQB, a particular control module (with a specific Part Number) can be compatible with a wide range of VAG vehicles. However, the module also needs to accommodate individual variances in each of the MQB models - it's the paramaterisation software that is used to tailor the module for a particular model car (in your case, Golf mk7/mk7.5)! "Calibration" solves the problem of small variances in each car that rolls out-of the vehicle factory. As you will appreciate, the fundamental goal when building vehicles on a production-line is for each car to be an exact clone of every other car. Whilst a global conglomerate like VAG is able to largely succeed in this objective - nevertheless, individual vehicles do have slight variances. There are lots of examples of these differences - but a common example is in modules that use distance measurement transducers. In these modules, it's often necessary to initialize the distance measurement function for each individual car. Hence the "calibration" procedure! are the basic settings input manually or are they from the calibration process? Both!! Some calibration procedures rely on synchronizing external devices with the steps in basic setting procedure - and others are stand-alone where the basic setting procedure self-implements without the need for manual intervention.
An example of the former is calibration of the front radar sensor for Adaptive Cruise Control - which requires the special laser targeting equipment shown below:
Is it best practice to put the entire car scan up or just the affected module? Most definitely - DON'T edit the SCAN in any way! The report contains a wealth of information and it can be read differently by different folk depending on their expertise in diagnostic analysis. If the SCAN is truncated/modified, the edit often destroys the "hidden" diagnostic data that might not be obvious to the poster!
Also, the technique that I suggested in my previous reply for digitizing the SCAN data will result in ALL previous SCAN reports. Of course, the ONLY pertinent SCAN is the latest - so strip-out the historic SCANs.
|
|
|
Post by golf75retrofit on Jan 24, 2024 21:28:49 GMT
Understood, Please find attached my scan. Given my guidelines aren't on the ground (camera seems to be pointing high) I suspect this is going to be a case of finding someone with ODIS, but id appreciate you seeing if there's anything obvious I've done wrong first. Apologies, I couldn't find a txt editor on my phone so it's a word doc Many thanks, Gareth Attachments:Log.docx (18.85 KB)
|
|
|
Post by dv52 (Australia) on Jan 24, 2024 23:04:12 GMT
I found 2 x cars with your 5Q0980556B module (@ address hex6C). Here is a comparative list of the long-code strings:
- Gareth's 2019 eGolf - 01730101E2002017040062
- 2019 mk7.5 UK - 0184010162002017000040
- 2016 e-Golf USA - 01840102C2002217000042
It's fairly evident from the settings above that for a Golf: - Byte 00 = 01 (Vehicle Brand)
- Byte 01 = 84 (Vehicle Class, Car Generation)
- Byte 02 = 01 (Vehicle Variant, Car Derivate Supplement)
- Byte 03 = 01 (Country EU)
So, make these modifications as a first try.
If not successful, I'm guessing this:
Don
|
|
|
Post by golf75retrofit on Jan 25, 2024 20:54:47 GMT
Thanks for clearing up the coding, sadly I'm still getting the same faults. Current scan attached history.txt (15.91 KB) Which other modules communicate with the 6C? I know 76 & 5F does, but is there any others that might have errors that are causing the missing message error? G
|
|
|
Post by dv52 (Australia) on Jan 25, 2024 22:07:45 GMT
hmm..... the high-line camera talks to the CAN network for ALL of its operations, so it receives/sends information from/to a number of other modules. For example, whereas the low-line camera is activated by a physical wire that's connected to the reversing light - the high-line camera gets the signal that reverse-gear has been selected from the CAN bus directly. Similarly, the high-line camera receives the turn-OFF signal when the car's forward speed is beyond the threshold value directly as a CAN message. In this case and looking through your SCAN report - none of the other modules in this car are complaining that they are having problems with the camera (the thermal management fault is unrelated) How do you intend to solve the the Basic setting error - which I assume is a calibration issue!
My hunch is that there are 2 x possible causes for the U112100 error: - The dataset in the 6C module is not completely compatible with your E-Golf!
- The long-code string is still not correct.
The first is clearly a discussion with the seller - the second is a matter of experimentation.
Don
|
|
|
Post by golf75retrofit on Jan 26, 2024 6:13:42 GMT
Hi Don,
I think I'm probably going to have to find someone with ODIS to calibrate it properly. It looks like it may be possible in VCDS with the domino board which I could possibly get printed on a plotter, I have a friend with VCDS access.
As for the other error, I'll go through and check the coding makes sense on 6C for the options I have fitted. I was thinking it may have been anothe module that I haven't told to communicate with the camera maybe?
On parameterisation, does it seem likely the parameterisation would be different for the egolf versus a regular golf, are there any files I could compare?
|
|
|
Post by dv52 (Australia) on Jan 27, 2024 1:01:32 GMT
I think I'm probably going to have to find someone with ODIS to calibrate it properly. It looks like it may be possible in VCDS with the domino board which I could possibly get printed on a plotter, I have a friend with VCDS access. The calibration procedure should be able to be done with OBD11 - and you can buy the domino board on-line (google it) As for the other error, I'll go through and check the coding makes sense on 6C for the options I have fitted. I was thinking it may have been anothe module that I haven't told to communicate with the camera maybe? Maybe - but if it was due to "another module", I suspect that it's because the 6C module is incorrectly coded and it's expecting a response from another module that is NOT installed in the car (I'm guessing of course) On parameterisation, does it seem likely the parameterisation would be different for the egolf versus a regular golf, are there any files I could compare? I wouldn't expect that the 2 x golfs wiuld have different files - again check with seller
|
|
|
Post by mathi9020010 on Jan 27, 2024 10:01:50 GMT
Your camera has a bad value in coding. Copying wrong long coding strings wont help it. You got to code your 6C to your car. Maybe you checked a bit for a function your car doesnt have or the other way round.
Secondly calibration cant be proceeded with VCDS for Golf 7. Plus there is no in/official instruction for using OBD11 in this matter. So i assume theres only ODIS being left.
Ive got the same camera from Aliexpress like you and im missing the "Grundeinstellung" too. But in my matter i got a perfect picture with well aligned bars.
|
|
|
Post by golf75retrofit on Jan 27, 2024 17:41:15 GMT
So I seem to have found the coding error that was causing the U112100 fault. I've set "equipment_automatic_transmission" to not installed. The fault no longer is generated, however upon activating this again the fault immediately returns. My guess is that the gearbox in my eGolf isn't the "auto box" (probably DSG) it's describing. I also attempted to calibrate the unit with both VCDS and OBDeleven, and I can't seem to find a security access code that works and allows the function to proceed. Any information on security access codes or the calibration on Golf 7 would be appreciated, the info I found was for Skoda Superb or VW Tuareg. mathi9020010 did you just leave your camera uncalibrated?
|
|
|
Post by dv52 (Australia) on Jan 27, 2024 22:05:16 GMT
^^^ arhh............ good!!! So the error WAS an incorrectly coded long-code string on the 6C module - as suspected!!
If you look at the long-code string for the E-Golf that I posted earlier - it also has the Byte 04, Bit 5 = 0 ("equipment_automatic_transmission" set to not installed). So yes, this must be the correct setting for the E-Golf generally!
Again, the OBD11 calibration procedure should be the same as for VCDS - both diagnostic devices use the same facilities inside the module (albeit the GUI screens differ with the device software
Many years ago when I was an active member of the Ross-Tech forum (I am no longer because I can't agree with Uwe Ross's ultra right-wing stance on US gun culture), I placed a fulsome list of security codes for MQB platform cars HERE. As you can see - the 6C module uses the ubiquitous security code 20103!
Don
|
|
|
Post by golf75retrofit on Jan 28, 2024 11:56:32 GMT
Well I guess that makes sense regarding the automatic gearbox coding bit for the camera. The security access code 20103 didn't seem to work, I actually tried the list of codes in that post yesterday before your reply. I also stumbled across this post, which said if you change service to EOL, prior to entering the security code 801129 that it would then accept the code. This does seem to work, however although the code is accepted I can't seem to get the calibration process to begin. I tried the following settings under basic settings and hitting "go" but I just get an immediate "oops something went wrong". Nothing changes on the screen in the car. I think I'm maybe missing something to tell the camera it's in "calibration mode" I've not been able to find any walk-thrus/demo's of the calibration process in OBDeleven, only lost of people saying you can't do it. I also tried in VCDS but couldn't find a way to get it into EOL mode to accept the security access code.
|
|
|
Post by mathi9020010 on Jan 28, 2024 15:17:57 GMT
when everyone is saying "it does not work with VCDS and OBD 11 for golf 7", then there got to be some trueth in it and often even when there is a way to do it, many users keep it secret :-P.
|
|
|
Post by golf75retrofit on Jan 28, 2024 20:21:48 GMT
Well indeed,
But if someone thinks it can be done with things I already have access to then of course I'm going to give it a go.
I mean I've already found plenty of other things which I read online which weren't infact true.
In relation to the original post, I figured out today why I couldn't add my TPMS module to the gateway either, turned out it was a bad fuse. More annoyingly it seems I have connected it to a switched live rather than constant which means it throws "lost communication" errors on the gateway every time the car turns on and off. Was trying to avoid a fuse tap and the usual positions used are occupied on my car.
|
|