Upgrading and re-cording CANBUS gateway

Hi guys,

So I've procured replacement canbus gateway as mine (3C0907530C) is known to be susceptible to battery drain with RCD510 head unit which I also got.

But (there is always but) I'm having a hard time re-coding the new one 3C0 907 530Q. My old (current) gateway coding is BFFD9F04C21003 which I think uses 7 bytes code (can't remember but the new one might be 9 or 12 bytes?)

In any case when I connect the VCDS it gives me all errors nothing registered as expected. When I go and select "19 Gateway" and register all components which I have on the car in Long Coding Helper then exit and select "Do it" either nothing happens or I get an error message to choose Y, N or cancel. Y tries to code it but comes with error message, N option I think it says to code 1234/123/12345 or something like that and cancel goes nowhere.

Even tried to enter the old coding value under the "New Coding" field directly it still didn't work.

Have you guys have any suggestions other than to put a can of petrol (or :blowtorch:) to it or to buy a new car?

Cheers

does it need you to enter the security code first? just asking, I havent ever done a gateway

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Originally Posted by h100vw

does it need you to enter the security code first? just asking, I havent ever done a gateway

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When I was trying to code the can gateway it certainly didn't ask me for any security code. However, in VCDS I know you need 5 digit code to option "16 - Security Access" but I'll be damned if I know what it is? When you select that Security Access option it tells you "many controllers allow only one attempt ... blah blah"

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Originally Posted by Old Navman

When I was trying to code the can gateway it certainly didn't ask me for any security code. However, in VCDS I know you need 5 digit code to option "16 - Security Access" but I'll be damned if I know what it is? When you select that Security Access option it tells you "many controllers allow only one attempt ... blah blah"

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@kamold might be able to answer in more detail but FWIK, you don't need a security code unless you are changing the key.
It would be good if you can post the vcds outputs.
You might need to do one segment at a time.

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Originally Posted by sn809

@kamold might be able to answer in more detail but FWIK, you don't need a security code unless you are changing the key.
It would be good if you can post the vcds outputs.
You might need to do one segment at a time.

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I've read somewhere that some control modules could be "locked" (by Ozzie VW) so to prevent any "third party" coding accidents but that may only be a hearsay. I'll have another go tomorrow at coding the can gateway, failing all I'll post some screen shots next couple days.

But I'm also being frustrated by the RCD510 fakra socket spacing (non existent) I just can't fit the old fakra antennae connectors to the new head unit - any ideas?

Attachment 52323

So, I think I got the new, upgraded can gateway installed. With new gateway in situ I chose 19 Gateway and the Installation List. I've had the Installation List saved from the old gateway so I knew which modules had to be installed. Eventually, I managed to have the coding accepted. However, now I'm getting some unexpected extra errors.

Attachment 52338
This one is complaining about Central Convenience and Digital Sound package?

Attachment 52340

This one about Climatronics.

I went to 56 Radio module but when I selected Coding then Long Coding Helper it came back with error message "Sorry, no coding information is available fro this ECU". This despite the fact with old gateway the information was there. I also can't find which module has the Right Hand Drive coding. Any experts there is VCDS coding?

Clear faults.
If the fault isn't listed as 'static' then it may be from something being unplugged etc (intermittent).
If the faults return after clearing and cycling ignition then look at them.
The no coding information error means that it can't match the module against the database (ASAM) to identify what it is and what the configuration parameters are.
Shouldn't happen with genuine VCDS. Happens all the time with poor clones.
Reboot laptop and try again.

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Originally Posted by kamold

Clear faults.
If the fault isn't listed as 'static' then it may be from something being unplugged etc (intermittent).
If the faults return after clearing and cycling ignition then look at them.
The no coding information error means that it can't match the module against the database (ASAM) to identify what it is and what the configuration parameters are.
Shouldn't happen with genuine VCDS. Happens all the time with poor clones.
Reboot laptop and try again.

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Thanks Kamold,

Well I didn't unplug Climatronics or anything else (apart from the old gateway & radio h/unit) and when the "old gateway" was in the Climatronics wasn't showing as "fault". Same with the Central Convenience. It's also puzzling that with "old gateway" the Long Coding Helper was working Ok.

Additional to Long Coding Helper issue I'm also intermittently getting error message "can not reach gateway" or something similar but I'd like to blame the old laptop which is running Win XP

As far as the faults go - I've cleared the DTC's several times but I have not tried rebooting the laptop or cycling the ignition yet. Truth being I'm really thankful :drinkbeer: that, at least, I was able to code/initialize the new can gateway.

So after installing the RCD510 yesterday I've checked the battery voltage and it only dropped by a minuscule amount to 12.40V BUT I've not done the battery drain check because I'm bit concerned that I might have to reset the idle speed or whatever else if I disconnect the battery to do that.

I might have to try using another laptop for coding to see if the same issues persist.

If you want me to have a look remotely over Teamviewer send me a message.

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Originally Posted by kamold

If you want me to have a look remotely over Teamviewer send me a message.

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Sounds good Kamold - thanks. In that case I'd definitely need to use another (slightly faster :)) laptop. I have never used the TeamViewer but I guess it's a matter of d/l, installing & then granting access. Let me get the bits ready first.

In the meantime, do you think there is any need for me to get the can gateway re-flashed with latest firmware update by VW dealer? There doesn't seem to any drastic battery drain, certainly not overnight as I've read on some forums.

Should be no need to visit a dealer.

Hi did you manage to clear the errors.
Could it be you have the old climatronic unit and might need to upgrade to a newer one??

The Fakra connector seems ok to me, should just slot in, did you align the grooves/ridges.

Be wary of the 2 to 1 Fakra connectors on ebay, they have a single wire only, the other slot is just a blank.

Today I've had a bit more luck with the VCDS and coding. Well, sort off. Most of the coding I've entered was "accepted" however when I went to check it back these fields were empty. For example, VW sound system coding, accepted, cycled ignition, go back sound system showing "not installed".

Attachment 52349

Attachment 52350

Same with for example chassis? VW sedan/limousine, RHD, coded through Long Coding Helper, accepted, cycled ignition. Went back - nothing. Perhaps the new can gateway is simply jinxed. :facepalm:

The Convenience Menu available normally through the steering wheel controls - only the petrol and millage available. No setting Homecoming lights, date setting, ect, etc. Also the reverse light not working, neither the fog light.

The car drives Ok, the headlights, indicators, new radio head unit all work. I've seem to have lost windscreen washer bottle motor but that could purely be a coincidence as I've noticed some water leak from that side of the vehicle few weeks ago. Also the TPMS is cactus. I could be said it's a miracle the vehicle is still moving forward he, he.

Attachment 52351

TPMS coding - I think the workshop code, importer no.& equipment no. are wrong, just default values.

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Originally Posted by kamold

Should be no need to visit a dealer.

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Thanks Kamold though given the above I'm beginning to wonder.

Is your VCDS a clone?
That's the sort of thing clones do. Look like they work but don't.

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Originally Posted by sn809

Hi did you manage to clear the errors.
Could it be you have the old climatronic unit and might need to upgrade to a newer one??

The Fakra connector seems ok to me, should just slot in, did you align the grooves/ridges.

Be wary of the 2 to 1 Fakra connectors on ebay, they have a single wire only, the other slot is just a blank.

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As per my above post, the VCDS behaved today so it seemed clearing the codes wasn't "a problem" Per se. No, the original Fakra connectors were simply too fat and the spacing on the RCD510 Fakra socket is too narrow. Have a look below at the RCD310 original spacing and compare the two. I didn't want to break anything on the new head unit even before I installed it in the vehicle.

Attachment 52355
Original Fakra spacing

I simply ended up taking the plastic Fakra shrouds and using electrical tape to "insulate" them. But a fellow from car radio installation joint told me that wasn't really required. He said the Fakra has the shrouds to lock the connectors in so they simply don't come out at any stage during driving. Since I know they're not locked I can always fix it should the problem arise. Well, I could make a plastic "bridle" and use a hot glue to make sure they won't come out but that's an extra work :tapfingers:.

Attachment 52356
(new) RCD510 Fakra spacing

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Originally Posted by kamold

Is your VCDS a clone?
That's the sort of thing clones do. Look like they work but don't.

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I don't want to say so not to incriminate myself ;) but suffice to say it worked OK under the "old gateway".

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Originally Posted by Old Navman

I don't want to say so not to incriminate myself ;) but suffice to say it worked OK under the "old gateway".

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They are crap.
So unfortunately you're pretty much left to fight with it or get something that works.

Sent from my SM-G960F using Tapatalk

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Originally Posted by kamold

They are crap.
So unfortunately you're pretty much left to fight with it or get something that works.

Sent from my SM-G960F using Tapatalk

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Yeah, that's why today I visited an auto electrician who happens to have a working VCDS. It appears that most coding was already on the gateway - once he saved the coding for type of car - VW sedan, RHD, etc all came back alive. The Convenience Menu, reverse light, fog light, etc.

The only thing he couldn't do is to get rid of the communication fault between the head set and the can bus which comes up as intermittent. He reckons it could be due to the fact I'm upgrading with Delphi h/u which whilst being a "proper VW h/u" is apparently only fitted to VW cars in China. Don't know about this one. :frown:

Upshot from all this is - invest in a good VCDS cable and you'll save in the long run. :)

Quote:

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Originally Posted by Old Navman

Yeah, that's why today I visited an auto electrician who happens to have a working VCDS. It appears that most coding was already on the gateway - once he saved the coding for type of car - VW sedan, RHD, etc all came back alive. The Convenience Menu, reverse light, fog light, etc.

The only thing he couldn't do is to get rid of the communication fault between the head set and the can bus which comes up as intermittent. He reckons it could be due to the fact I'm upgrading with Delphi h/u which whilst being a "proper VW h/u" is apparently only fitted to VW cars in China. Don't know about this one. :frown:

Upshot from all this is - invest in a good VCDS cable and you'll save in the long run. :)

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Definitely getting a genuine VCDS is very important. I was lucky enough to get an old Hex cable on the relatively cheap side.

I have a Noname 330 from a Chinese phaeton. Works well for me although I had opened up the harness to get access to the canbus and added an extra cable covered with shrink wrap.

Is the canbus gateway genuine??

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Originally Posted by sn809

Definitely getting a genuine VCDS is very important. I was lucky enough to get an old Hex cable on the relatively cheap side.

I have a Noname 330 from a Chinese phaeton. Works well for me although I had opened up the harness to get access to the canbus and added an extra cable covered with shrink wrap.

Is the canbus gateway genuine??

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Yes, made in the Czech Republic. I don't know if Chinese are into copying canbus gateways (yet) but I suppose anything is possible.

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Originally Posted by Old Navman

Yes, made in the Czech Republic. I don't know if Chinese are into copying canbus gateways (yet) but I suppose anything is possible.

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Of course they are.
Very simple device.
So you need to be careful which part you buy when it comes to hw version, eeprom size, ext can and Lin bus interfaces.

Sent from my SM-G960F using Tapatalk

Quote:

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Originally Posted by kamold

Of course they are.
Very simple device.
So you need to be careful which part you buy when it comes to hw version, eeprom size, ext can and Lin bus interfaces.

Sent from my SM-G960F using Tapatalk

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How do you spot a fake when on the fleabay all canbus looks the same? At least on the outside.

reputable seller or just visit one of the garages that allow you to pick parts yourself (both understandably difficult due to covid)

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Originally Posted by sn809

reputable seller

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Do you have one in mind? Mind sharing the info?

You're not going to find China copies of 3C0 gateways.
There are 7N0 gateways that you need to be careful of because they are sometimes labeled as having 8k eeproms for fatigue assist but they only have 4k. You can modify them though by replacing the eeprom and then flashing with the correct software.

I got mine from a guy who was selling the Rcd330 Noname.
I needed it due to battery drain issue.
I think I got the wrong model for my Passat so decided on balance just to ensure I switch it off and make sure nothing is connected to it. I just top up the battery once a week.
Its a long hauler any way so battery kinda gets pumped up fairly well once it gets going.

Quote:

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Originally Posted by kamold

You're not going to find China copies of 3C0 gateways.
There are 7N0 gateways that you need to be careful of because they are sometimes labeled as having 8k eeproms for fatigue assist but they only have 4k. You can modify them though by replacing the eeprom and then flashing with the correct software.

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I'm relieved to hear that (mine is the 3C0). The gateway, despite some initial setting problems, seem to be behaving Ok.

Quote:

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Originally Posted by sn809

I got mine from a guy who was selling the Rcd330 Noname.
I needed it due to battery drain issue.
I think I got the wrong model for my Passat so decided on balance just to ensure I switch it off and make sure nothing is connected to it. I just top up the battery once a week.
Its a long hauler any way so battery kinda gets pumped up fairly well once it gets going.

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Getting the updated gateway installed and "in order" seem to have fixed any possible battery drain problems thus far. The radio is working well ... but a bit of a disappointment. Mind you after almost 3 years laying in box I could probably afford to buy the RNS530 now for the price I've paid (3 yrs ago) for the RCD510.

But even with 510 I don't have a camera installed so this capability (for now) is being wasted. The rear (pop up) cameras are still fetching around A$200 plus I'd probably be looking at getting the wireless sender so I don't have to run wires all the way to the front of the car. I think some kind of video converter is also needed for this to work wirelessly so it all adds up.

Lol, I didn't even know a wireless option existed, if I would want anything it would be wireless android :)
Running a cable to the back is not too difficult. Just remember to remove all the tabs that state airbag first as some of them have a torx screw behind them.

Dynamic parking line handle camera VW PQ or MQB Passat Jetta Tiguan RCD330 plus | eBay

This is the camera I got, got the RCD330 from the same guy with the K0 series canbus as a package to save on shipping. Has yellow lines that move with steering. Seems good enough for day to day, as some one said I not going to be shooting the next blockbuster on it.

Quote:

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Originally Posted by sn809

Lol, I didn't even know a wireless option existed, if I would want anything it would be wireless android :)
Running a cable to the back is not too difficult. Just remember to remove all the tabs that state airbag first as some of them have a torx screw behind them.

Dynamic parking line handle camera VW PQ or MQB Passat Jetta Tiguan RCD330 plus | eBay

This is the camera I got, got the RCD330 from the same guy with the K0 series canbus as a package to save on shipping. Has yellow lines that move with steering. Seems good enough for day to day, as some one said I not going to be shooting the next blockbuster on it.

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Can you be a more specific about those Airbag tags? Not sure which location they suppose to be in.

Thanks for the car head unit link though those cameras (according to the description) will not fit my car/head unit. They're priced quite reasonably but I think the RCD510 requires RGB format for the rear view camera.

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Originally Posted by Old Navman

Getting the updated gateway installed and "in order" seem to have fixed any possible battery drain problems thus far. The radio is working well ... but a bit of a disappointment. Mind you after almost 3 years laying in box I could probably afford to buy the RNS530 now for the price I've paid (3 yrs ago) for the RCD510.

But even with 510 I don't have a camera installed so this capability (for now) is being wasted. The rear (pop up) cameras are still fetching around A$200 plus I'd probably be looking at getting the wireless sender so I don't have to run wires all the way to the front of the car. I think some kind of video converter is also needed for this to work wirelessly so it all adds up.

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Dont try and waste youre time with wireless. Had this version:

175 Degree MCCD Fisheye 12LED HD Rear View Camera For Volkswagen VW Passat B6 CC Touran Caddy Golf Plus Touareg 2009 2010 Car|Vehicle Camera| - AliExpress

Sometimes it didnt work because of other frequencys around you and and and.

End of story i installed a wire for the camera.

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Originally Posted by Exili123

Dont try and waste youre time with wireless. Had this version:

175 Degree MCCD Fisheye 12LED HD Rear View Camera For Volkswagen VW Passat B6 CC Touran Caddy Golf Plus Touareg 2009 2010 Car|Vehicle Camera| - AliExpress

Sometimes it didnt work because of other frequencys around you and and and.

End of story i installed a wire for the camera.

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Good to know - thanks.