the council on ecu faulty touareg 5.0 v10

Hello everyone, as my first discussion, I would like to propose a nice rognazza that I pull ahead by a few days.
A customer has to months a touareg 2004 5.0 v10 firm to casusa of a faulty ecu.
I have to say that this client has made the rounds of the various people who in the end failed, so I found a ecu already dismantled with much of the e2prom already risaldate(I have read the file for immo).
I realized early on that, if you have tried to restart the machine has completely ignored that the car has dual ecu edc16u1, and hacked on only one, convinced, of course, that had only one(because the first was not removed).
The first thing I did ? was to clone the faulty ecu with another known working. With the first ecu ori would not start aneither the starter motor, with the cloned one, but anyway the car would not start.
I did a diagnosis with the vcds and I found that on both of the units I receive the error e2prom with written with MIL ON.
From here on in absolute darkness:
The problem ? that I don't know what they did with the people before me, but especially what they put into it is blessed e2prom.
I tried to open the second ecu and do a backup of everything.
I compared the files of the first and second ecu with a dial indicator binary, and I noticed that the files being read are all the same except for the contents of the respective e2prom, I also have the same n?frame.
with a program I tried to remove the immo to avoid problems, but nothing always the same error.
I hope not to have made him sleep, but my questions are the following:
1)what'? the ecu master and the slave?
2)the ecu must have exactly the same files, or the master must differ in something with the slave?
3)the problem for the start-up is in the files of the e2prom?
4) someone with a backup of the respective ecu read in bdm?
5) there is a file called "virgin" that allows me to put in motion the machinery without considering the immo and the distinction between master and slave?

Thanks in advance to anyone who will give me an answer, and sorry if I have dwelt too

that car ? very complex, I suggest you to search in the network of pdf signed ssp 298 and ssp 304....I had posted a link where I could find but the post ? awaiting moderation for who knows? why....
however, the ecu of the car are not master and slave, as you say, but each of them receives signals and maintains a single bank..then both communicate with each other to manage the engine...
so I think that any work you do for an ecu then necessarily you have to do it on the other..

thanks a lot for the help...not being a magician, I'm becoming an idiot.. :-)

hello.... then.... I also played a little on this type of car.... in the substance at that car had been changed the alternator, and after he started his problems, but from what I know in the end they fixed and it was the wiring that goes to the automatic transmission ruined.....
also check you, ste machines cel' has the defect that if you tap or move the wiring of the automatic transmission damage defects..... and on the dashboard are flashing all gears.
if I placed the hw and sw maybe I have something for you.... precisely I do not remember now, but it seems to me that the e2p were different between the ecu a and ecu b.....
anyway, munro, I believe that it is not possible what you say.... because it can't handle a ecu for a bench.... there's got to be a master and a slave, because they can vary things only on an ecu alone, for example, the autoadattamenti.... must be the same for both the ecu must think as if it were a single, even if the ecu receives the signals from the maf 2 maf different, 2 sensors, turbo different ? everything double!!

found! now I give him a look...

ok, thanks! I could post it tomorrow because I've forgotten them at the office. do you prefer a single file, or all three separate for each ecu?

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Originally Written by rego88

anyway, munro, I believe that it is not possible what you say.... because it can't handle a ecu for a bench.... there's got to be a master and a slave, because they can vary things only on an ecu alone, for example, the autoadattamenti.... must be the same for both the ecu must think as if it were a single, even if the ecu receives the signals from the maf 2 maf different, 2 sensors, turbo different ? everything double!!

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in fact, the two ecus communicate with each other as if there were only one but really? we know very well that are 2....

with the bad one was not moving menneno the starter motor. with the cloned part of the motor but does not put in motion.
Not ? been done no work on the car, if not to have changed the sensor because they thought it was that. in diagnosis, the machine does not have other errors if you are not one of the e2prom damn....

try to read the e2p of the ecu "good" and rewrite it in the ecu handled.....have you ever seen...

already done....I'm getting crazy..especially because I don't have a clear view of the car...

according to me you can have a hope of throwing in a bdm backup to another machine the same and removing the immo from the deu e2prom

if you have found the pdf that you said them it says that the 2 ecu's have the same nmero hw and sw, then, strictly speaking, also the content of the 2 e2p should be equal....
to monitor then the communication via can bus between the two ecu c'? a can module which is "you must say which ecu ? assigned to bench 1 and bench 2".....
I think that it is one thing to make a diagnosis with the vcds...

ah I wanted to tell you look in the diagnosis: the Entry and start authorisation control unit J518.....

I'm sorry contraddirti munro but these are just a master and a slave, have the flash and the processor is the same and only change the e2prom precisely why a master and the other slave, if you try to read them at the counter in the k-line to thee also, saith the programmer (me the first time I read with galletto 1250) not you think that you save the file if it is not the laws of the two before the maste and then the slave, I have had a problem with a unit of these, the , the car started but was bad and sometimes would not start any more,and it was the processor, in fact, also in the bdm leggeve flash and e2prom and gave the error on the mpc, I have to have the back up of the two units if I need to post it lacks but in a precisely the mpc, I don't remember if the master or the slave.

no..no anyone I can? contradict each other...I will not be your god.....
I for? I speak on the basis of official documents vw ? not on the one that says a programmer...I'm sorry...
then however you say as well that if we don't read all, and the two of you will not save the data...
so this confirms that the two files actually? they are not master and slave as you say, but rather a single file split between the two ecu....
then, however, I rest my opinion is also wrong that can be....

of course it's as a single file and it is for this reason that a master and the other slave, because they work both as if they were a single unit, and it is for this reason that in serial to the tour, you can't read a single one, however, are units that have always given defect and I'll tell you more if he breaks a te the damage in each case.

mmm get it...tomorrow as arrival in the office, place the file that I read in bdm with cmd, also because someone before me has unsoldered the e2prom from the ecu is faulty, so I don't know if the original file is the one or not..thanks to all for the clarification. Now ? become a matter of principle

Do immo off on all the two could solve the problem

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Originally Written by legendaryslave

Do immo off on all the two could solve the problem

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it might be an idea, my e2prom should be good, you have to see the sw if it's the same.

I have tried immokiller...I try tomorrow. but other recommended programs?
with the time you can do this ecu

why not, I should edit the file to put the chassis of the vehicle and after that I can see that the machine part, because I would not be in the diagnosis of a frame of another machine...and as you know with the vag group are not joking..

check that the module that you said...J518....must be a kind of "the authenticator of departure" that I think should be "aligned" to the ecu....

I use vcds..I find anyway?

I think of you...to the maximum search the web ssp 298...
it tells you the functions and locations of all the electrical equipment of the car....

18048/P1640/005696 - Internal Control Module: EEPROM Error. this ? the error in diagnosis

*ugo do you know that I esteem you, and I'm not writing to argue or nitpick, but just to learn still more in some ways no??
but if you tell me that you are the master and slave means to me that c'? an ecu that controls the other cio? the master commands it(the master), the schaivo acts(slave)....
now you agree with me that there are two ecu but work as if it were a single.....
so what'? the master ? what? the slave at this point??
if you want to be precise, the ecu 1 receives a p? more input from the various sensors with respect to the ecu2, but still all the inputs received from ecu1 are passed in the can line to the ecu2 so for me the ecu run the engine "in the company" and not "the owner and employee I order you to do"....

I enclose a photo

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Originally Written by barrags

18048/P1640/005696 - Internal Control Module: EEPROM Error. this ? the error in diagnosis

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and relating to the eeprom corrupted....
probably "the identifing" and the settings have been changed in the ecu. then the cks incoretto of the ecu altered generates the P-code in the object.in fact, the ecu, and in consequence the module J518 determine whether the memory map ? intact and std.
and then the J518 from the starting.....

I can't wait for tomorrow so place the tsi file:o, but the cks I correct with the cmd. It is not enough that once I have written it all?
Munro parts from the fact that you're talking with someone who has little experience so I only have to learn....anyway, vadan things thanks for the support.

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Originally Written by barrags

I enclose a photo

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I think that this may find useful:

no controversy , we are here to talk about, I think the story master and slave will serve to give a priority in the control of the management of the engine, just because being in two, and working for one agree with me that if there is a priority may not work, I repeat, if you try to read them on the bench (no bdm ) and put in the first reading the slave, the programmer tells you that it's wrong the ecu and start with the master, what can you tell this is my personal experience with this drive.

but you'll say that the experience is more beautiful on this car was to replace the alternator, a nightmare guaranteed.

What do you mean by read counter no bdm? I with the cmd to tour in the genre I read it just in that way...I can do it in other way?

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Originally Written by barrags

What do you mean by read counter no bdm? I with the cmd to tour in the genre I read it just in that way...I can do it in other way?

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via K-line as a serial.

I am on v10 tdi, I have not yet had the pleasure to put my hands..also because here in the area I have never seen...
I imagine that it must have been a nightmare to disassemble and reassemble the alternator to the car...besides the fact that ? in the midst of the cylinder banks, it seems to me...and water cooled and coupled directly to the motor with a flexible coupling semi-rigid...


*barrags...can you? do reading in the k-line and feeding the ecu, all the pins of the ecu itself..without open anything...

Ok I imagined, but I thought in a few tricks of the trade....for curiosity I tried to write a map ori from the obd, but not me do it. It tells me error rsa signature keys. Pero makes me read...

mmhh.. from what you say, I st? venedo the doubt that the cks of the two ecu should be in the nature of things uguali.....maahh.....

But the point of it ? then:how do I calculate the same cks? I can do with cmd only in bdm..cmq by, I leave you with the doubt until the morning when the postero files..night everyone!

Good morning to all! as I said I'm attaching the file that I read

if you get problems on the rsa then ? the checksum that ? wrong...
by a subsidiary with winols