[voxmagna]

Congratulations on a good result!

In 6 weeks you have learned a lot about EOS diagnostics and the roof components. You will no longer be scared off when the warnings come up - out with vagcom and get stuck in.

You just need to wait for some nice weather, particularly as Buxton is one of the highest places in the U.K and gets oh so cold.
Krytox in Spring ready for summer and you are good to go.

Being an EOS newbie, you can be forgiven for not recognising the absence of the trunk lock motor 'whir' when it is latched. Just a pity the diagnostics led you a bit of a dance.

Surprised nothing showed up in the locking module tests as it does with the door locks, or there wasn't an error on the center console display. I know if mine is left unlocked I get a visual and audible warning. But the bad wiring might have stopped all the usual warnings.

We need lots of photos! Do you know how to work with them e.g add overlaid text, arrows etc? Admins: Can we host these on the special drive if size reduced? Photos of the roof controls and sensors would be a good asset to help others.

PM me and I'll help.

 

[silvershadow]

Well done voxmagna and thank you for the conscientious way you helped our member.
.......................................
We need lots of photos! Do you know how to work with them e.g add overlaid text, arrows etc? Admins: Can we host these on the special drive if size reduced? Photos of the roof controls and sensors would be a good asset to help others.

PM me and I'll help.

YES WE CAN - I would prefer to Photoshop them from full-size images and combine them into a composite PDF file which includes the text detailing the solution that can be downloaded from our Google Drive folder by all members using a link published on this Forum. If the captions and text are provided, I can do all the overlays, arrows, text etc as well as formatting the text content.

silvershadow

 

[phuture6363]

my eos roof does not open at all. vagcom 02805

HS1 , 110101100110 anyone know what wrong with this.

 

[phuture6363]

my eos roof does not open at all. vagcom 02805

HS1 , 110101100110 anyone know what wrong with this.

i found out that the 3rd number must be 1 and that mean there is something wrong with sensor G560, anyone know what should i do or where to locate it

 

[Redimps]

Check this out http://wiki.ross-tech.com/wiki/index.php/VW_Eos_(1F)_Convertible_Top

VW Eos (1F) Convertible Top









Contents [hide]
1 Coding
2 Roof Data 2.1 Roof Binary Data in Closed Position
2.2 Roof Binary Data as Top Cycles Open
2.3 Roof Binary Data in Open Position
2.4 Special Notes

3 Video Link 3.1 Eos Top Operation



Coding
## 0655360 = Sunroof (Sliding & Tilting)
## 0655361 = Sunroof (Tilting only)
## 0655362 = Parking Aid & Sunroof (Sliding & Tilting)
## 0655363 = Parking Aid & Sunroof (Tilting only)







Roof Data

Roof Binary Data in Closed Position


Measuring Block Group 002

1 1 1 1 0 1 1 0 0 1 1 0 1
Data

G672
G567
G559
G558
G566
G565
G564
G563
G562
G561
G560
G557
G556




Roof Binary Data as Top Cycles Open


click thumbnail to enlarge photo



Eos01.jpg


1

Eos02.jpg


2

Eos03.jpg


3

Eos04.jpg


4


Eos05.jpg


5

Eos06.jpg


6

Eos07.jpg


7

Eos08.jpg


8


Eos09.jpg


9

Eos10.jpg


10

Eos11.jpg


11




Roof Binary Data in Open Position


Measuring Block Group 002

0 0 0 0 1 1 1 1 0 0 0 0 1




Special Notes
## The G672 (13th BIT) is only on 2009 and later models, older version will only have 12 BITs of data.




Video Link

Eos Top Operation

Eos Top screengrab.jpg

http://www.youtube.com/watch?v=3owlG0ICF_s

 

[Redimps]

I've watch the video and it is one of the rear window sensors that is faulty indicated on the binary code. the code should be 1 1 1 1 0 1 1 0 0 1 1 0 1 when closed, yours is 110101100110. the 13th code is post face lift your hasn't got it. look at the 4th digit on yours it should be one which means one of the rear window closed sensors is faulty or not made to tell the controller is closed.

Hope that helps

Dave Vacs Lincoln

 

[phuture6363]

I've watch the video and it is one of the rear window sensors that is faulty indicated on the binary code. the code should be 1 1 1 1 0 1 1 0 0 1 1 0 1 when closed, yours is 110101100110. the 13th code is post face lift your hasn't got it. look at the 4th digit on yours it should be one which means one of the rear window closed sensors is faulty or not made to tell the controller is closed.

Hope that helps

Dave Vacs Lincoln

do u know where the sensors are, can i do it myself , or i have to take it to the dealer to fix it?

 

[voxmagna]

For most jobs on the EOS roof electronics you will need the factory service manual or equivalent. First it tells you what parts and trim to remove and where parts are located. VW are very cunning in the way they fit trim which can be expensive to replace if you damage it.

Many sensors are Hall effect electronic types and there are often clearances which need to be checked.

The fault code you got and help interpreting it is only the start, because whilst narrowing down the area of a possible problem, it does not tell you if there is a wiring or connector problem elsewhere.

Here is a little bit of info to start cutting your teeth on. By the time you read everything, find the part. replace it and maybe find it wasn't the fault, you may find it easier to let the dealer fix it and have it done right. Sorry I can't upload the 1.78Mb pdf, but check the archive here or Google for Eos convenience Electrics 2 SSP_379_d3.pdf

The roof sensors have an important function which is not only to send controls signals for the sequence, but also to prevent serious damage to the roof by stopping it operating.

 

[silvershadow]

The Google drive link to this document is:

https://drive.google.com/file/d/0Bz2EYc0pOpXkSDdrUTIwVm5CYjQ

Just click on the link and all will be revealed; you can download the document by going to FILE then DOWNLOAD on the menu.

 

[Pac1701]

mschumacher33 could i possibly get those photos. i have 02805 fault ecu and roof motor replaced this could be a simple fix please help im at my wits end

 

[Pac1701]

can anyone help i have 02805 fault code also. exact same issues as mschumacher33. wht boot latch is it you fixed

 

[voxmagna]

http://forums.vwvortex.com/showthre...-stuck-closed-fault-02805-system-interference

this could be a simple fix

I have found very few things in the roof system that are a simple fix.

There seems to be 2 or 3 types of fault scenario. The easiest are sensor faults or something physical not happening to trip a sensor when it should and those have been covered at the top of this thread.

The most difficult are going to be internal module faults and error codes which suggest bad communications coming from other inter connected modules. Of course, most don't have a bunch of known working good modules, including the roof controller to swap over. The roof and related control modules talk to each other using LINbus version 1 protocol. If the same fault code appears after clearing and before any roof op, that suggests a broken system module which can't get past its initialization.

That will probably blow your mind, but each module in the roof system is sending its data back and forth and there is parity error checking. When vagcom reports fault codes like intermittent, module fault or bad communications that usually means something internal inside the module is causing data communication errors. Since there can be several modules on the same bus network, a fault could be in any of them. I have this suspicion that perfectly good modules can get their internal firmware corrupted, giving the 'failed' module fault. I suspect from what happened to me it can be caused by bad batteries or connecting chargers across the system when modules can get 'spiked' out.

The dealer is not going to start hanging bus analyzers on your car like I can and it is very hard to even work out the 'labels' VW use to identify what packet data refers to. However, some faults like no data or fragmented data and handshakes + parity errors can be seen and give clues.

The dealer will probably just swap modules until the fault clears which can be expensive for you if they don't hit the target first time. It seems the best option.

The only advice I can give is to research the roof system, determine what control modules it is using and disconnect some. vagcom will report more error codes, but if fault code 02085 goes away or gets replaced by another, you may have a clue.

I think windows are the weakest link. I have had windows which work fine on the door switches but give fault code errors when the top is operated because the modules were faulty suggesting there are 2 different controllers working. I think the door switches work through the CAN gateway module but there is an additional control layer coming from the roof controller. In my case the rear windows only went half way down. There are no physical sensors detecting window up or down. They use the motor stall in the window control module to signal top and bottom limit reached.

Good luck, but I think a dealer with a bunch of modules to swap may be your best solution. I forgot to mention that if you have been changing or replacing any modules or system parts, you can also get these obscure messages. You should always do a vagcom scan when you first use it and when the car is all working. If parts are changed you can then refer back to compare with the original coding.

 

[Pac1701]

I have replaced roofmotor, ecu and cabling to roof motor from ecu. What mschumacher33 was doing was of interest because that's an exact replica of what my eos is doing. Have checked everything possible I think. Sent mschumacher33 a message to see if he couldn't send me the photos he was talking about to do his fix but unfortunately no response. Using vcds the fault can be cleared now.but once operated it comes back. help me!!!

 

[voxmagna]

You have replaced a few important parts. That fault code is a 'generic' code. There is no guarantee it relates to another members problems. Is your trunk latch working normally as it should without trying the roof operation?

There are exceptions, but if you carefully check these things - trunk latch, windows, side flaps sunroof etc without the roof operating, then they should work when asked to by the roof controller. But as I said, there seems to be another layer of control coming from the roof controller itself.

I had that kind of fault code when I was fault finding the rear window controllers, but then I was attaching a p.c scope on pins through the connector wires. I am pretty sure you can get those messages when the system wiring has a problem, particularly the grounds or the bus is loaded too much by a faulty module. I was analyzing and seeing loads of data block parity errors.

Linbus v1.0 is a single wire (purple) and ground wire (brown) bus connection system. Unlike CANbus which is 2 wire differential, LINbus is cheap to implement being one wire, but it is susceptible to interference pickup or loading which could cause message data corruption. The Bus ground wire wiring and connections are extremely important because they are carrying currents from other electrical components in the car and the data ground. The roof pump, trunk latch and window motors are all high current parts capable of putting current spikes on the bus ground wiring. I would go straight to the comms bus, look at the signal voltage, check for any ground spikes, quality of the waveform and try to decode messages without errors. But you want a quick fix and I can't help on that.

 

[Pac1701]

how do i check the trunk latch. how do i check sensor g560 g561 etc.
they are the 1st sensors i thought

 

[voxmagna]

how do i check the trunk latch. how do i check sensor g560 g561 etc.they are the 1st sensors i thought

We told you at the top of this thread - By using vagcom and monitoring the binary sequence:

http://wiki.ross-tech.com/wiki/index.php/VW_Eos_(1F)_Convertible_Top

However, a sensor output change will not occur if the roof faults and stops at an earlier point in the operation sequence.
.

 

[Pac1701]

Okay have checked everything with vcds. Onlything coming up apart from this code is s faulty parking sensors rear left. Everything else no problems. Windows down sunroof back thenroofmotor makes a gun another another. Booked in to premeirvwaudi Glasgow weekend Monday. Going to change thermal fuse under instrument panel also for roof motor. Fingers crossed gsragecan lead me the right way. Cheers ?

 

[voxmagna]

If vagcom isn't giving fault codes, that usually means the roof operation is stalling at some point due to a physical problem. The roof system thinks everything is o.k up to the point of stall, but never gets to the next step in the sequence. Thermal trip lockouts are usually flagged by vagcom. Report back their findings to help others.

I've had my Italian automatic washing machine nearly 20 years and it has never gone wrong mid program sequence!

 

[Pac1701]

Update

after visiting a vw technician in glasgow today. a slight bit forward. Have traced it to the g563 and g564 not the sensors but the locking mechanisms. the car is going thru all the process of putting the roof down but when it comes to these mechanisms they are not unlatching/ releasing to allow next part of the process. sensors are working stating everything is working and in position. it has to be the latches. can anyone give any help with these re trying to access these fault finding etc. my technician seems to think it will be a time consuming process of elmination.

 

[voxmagna]

Are you sure your VW technician is EOS roof trained and knows what they are doing?

G563 and G564 are actually sensors detecting the rear shelf is locked in the trunk lid or it could be one or both rear cover flaps.

I have only been into parts of the roof system during exploration and to find other problems. From what I can see of their system, hydraulic rams in pairs do the heavy lifting pushing and pulling, but it is the black nylon strings that do most of the latching. If some of the parts e.g the rear shelf, are maladjusted without clearance and stick or the strings have slackened then the sensors will say they are not closed or latched. However, the rear trunk lid and shelf are opened and closed by a hydraulic cylinder inside each rear hinge. I am just guessing but they would not be used when the trunk lid is lifted open, only when the roof requires the trunk lid to hinge out. I can't remember if you said the roof op. stopped before or after the trunk lid hinged out? So, you could actually have a hydraulics problem if the trunk is not hinging back. That's where it might get expensive because it is the roof pump valves that open/close on each pair of hydraulic cylinders at the correct time in the sequence. Whilst your problem is frustrating, the system does protect itself by stopping the roof op. when something is wrong to stop parts getting crunched up. You can see that by studying the point where your roof op. stops and work out what might happen if the main roof kept moving into the trunk and your trunk lid was not open or cover flaps are in the wrong position!

If you had problems with the front section of the roof not latching then I might agree that area seems difficult to access without removing (and re-aligning) large roof section parts. But the rear trunk lid is well away from the main roof and I would have thought easier to deal with.

I think you need convincing first that your VW technician is EOS roof trained, does know what is wrong and has maybe consulted with the Mothership if he is unsure. Get a breakdown of what action they propose and estimated labor and repair cost. If they say replacement pump/controller or rams, then take a deep breath and heart pills before reading the quote.

Watch VW prices from now on - They will have to claw back all the money spent on recalls fixing dodgy diesels in the USA!