Passat B6 Immo- CCM

[Diagnosticated]

Hi Guys. Sorry to be a pain.
As posted in another thread, got Passat B6 1.9 pd tdi BKC withe steering lock/CCM fault.
Tried every suggestion but nothing works. Latest try was get newer used CCM and flash it with virgin dump posted on DK.
VCDS is now reporting that CCM is new! BUT I cannot get any further.
security access 16 > Vehicle PIN (15714) > Do it. gives "Controller refused the key Error 35: Invalid key"
I think PIN must be correct because I do not get lock out timer when I use it.
Thanks for all suggestions so far. I tried complete new ECU set but could only get one from a BKE engine. With this set car starts but will not run. BUT it does not have any steering/CCM errors at all which proves that my fault is either CCM or steering lock or both.
MY CCM dump has what I think is the immo section as F0 F0 F0. If I change this to FF FF FF will it switch immo off?
I think I can see key 1 and key 2 in the dump plus a section that may be "current key" Is there a way to change the "current key" to get it accepted?
Help!!

[Diagnosticated]

Update: So I write my original 95320 bin into a new chip but changed "immo region" from F0 F0 F0 to FF FF FF. Soldered this into a used but matching CCM.
All dash error are no gone but engine still will not start. Strange thing..Now I have EPB error instead. EPB is working fine.
Any ideas guys. I am convinced that something in the flash needs changing but what??? This is a screenshot of the dump.
332437

[autofan1965]

First of all you show us bytes not bits wich is big diffrence. Second, not all CCM are interchangable.

[Diagnosticated]

autofan1965 Can you explain in more detail. Does it matter if I look at bytes or bits? The screen shot is what my hex editor gives and it matches other data on DK. I have no idea if any of my comments on the screen shot are correct. That is why I ask for help. The CCM I am using is same part number as original. All I have done is swapped 95320 chip from original ccm to this one. When this did not work I tried changing file code from F0 F0 F0 to FF FF FF to see what happen. I have no idea if this is good idea. That is why I ask here. Car is stuck 1 month now. Only way to get any electrics or ignition is to manually unlock steering lock. Steering lock never unlocks by itself. VW dealer cannot explain this and neither can I. Dealer tool cannot program CCM or steering lock and neither can VCDS. Both tools communicate but no functions work for either tool. I am trying to understand what make steering lock unlock. This should happen before ignition as soon as key is pushed in one notch. But in this car nothing happens. Key is ignored. I do not know if key must be recognised by steering lock, CCM or both. I never get a fault about key so neither unit reports an error. It is just that nothing happens.

This is what VCDS shows with original ccm and steering lock;

Address 25: Immobiliser (3C) 059 433 AR)

Group 1: System status
No engine start permitted
Yes engine (ECU) responds
no value key status
0.0 number of adapted keys

Group 2: key && adaptation status
no value variable code authorised
no value key status (Transponder)
no value Fixed code authorised
1.0 Immobiliser status.

Group 3: Lock times && system status
0.0 Lock time Immobiliser
0.0 Lock time Engine
0.0 Lock time Transponder
0.0 Immobiliser (LED) status

Does this mean immo thinks that no keys are adapted to immo.? My best guess is that somehow my 95320 dump got corrupted. (no idea how as it happened over night)
Does anyone know if I can change the dump to get keys recognised again?

[autofan1965]

Transponder coil is connected to elv. What is exactly story of this car? Have you any dump from beginning? Diffrence in bit and bytes is big, use youtube or google to understand it.

[Diagnosticated]

Thank you I know what bytes and bits are but I don't understand why it matters in this case. I can Xor the hex editor values to get VIN and immo id from The picture I posted. I know now that 01 01 represents two keys coded and appears 3 times in the dump. If you change this value to 00 00 VCDS reports no keys coded. VCDS reports immo matched to engine ecu. BUT VCDS continues to report that immo is active. This never changes. I was hoping someone on DK would know if this can be changed in the hex dump.
Thanks, I know where coil reader is and I know how it works with immo and steering lock. BUT in this case immo never allows steering lock to release. VW dealer cannot get it to work, not just me. When key is pushed in to position 1. Steering lock and immo should communicate and immo should allow steering lock to unlock. It does not do this which means ignition never comes on. I have to manually unlock steering lock. Neither dealer tool or VCDS can get ccm (immo) or steering lock to accept programming. That is why I am stuck trying to alter the immo dump.

[Faraday]

Do you have vcds log before you made changes? Micro switch in steering lock is common fault.

[Diagnosticated]

Thanks but been there done that. Switches and motor all work fine. I have no power supply to the motor. Dealer tried 2 new locks and could not get them to work either.
I think fault is corrupted CCM so need help to program CCM. VCDS recognises my virginised CCM as new but asks for log in code. What login code???
If I enter PIN code, vcds crashes.

[Weasel3]

Send the vehicle to Wolfsburg.:)
If not even the dealers can sort this out.
It is a job for the engineers at the factory. Let them swap parts until it is solved.
This type of problems should be free of charge, just to keep their VW branding at the top. As a goodwill.
They are already in big trouble regarding the diesel scandal with their manipulated software.


This could be one of many things they should do to indemnify the VW name.

But the good thing of the diesel scandal is that we finally get rid of this engines.
USA and Switzerland have now denied VW-VAG to sell diesel vehicles in their countries.
In the future more hybrid and electric vehicles on the market. And much better air to breath in.

[obdsystems]

Send the vehicle to Wolfsburg.:)
If not even the dealers can sort this out.
It is a job for the engineers at the factory. Let them swap parts until it is solved.
This type of problems should be free of charge, just to keep their VW branding at the top. As a goodwill.
They are already in big trouble regarding the diesel scandal with their manipulated software.


This could be one of many things they should do to indemnify the VW name.

But the good thing of the diesel scandal is that we finally get rid of this engines.
USA and Switzerland have now denied VW-VAG to sell diesel vehicles in their countries.
In the future more hybrid and electric vehicles on the market. And much better air to breath in.


I took away my "thanks" as read the last sentence about hybrid & electric cars - we have enough crap to deal with already lol.
And electric cars are a joke - do u drive one ???
If u have a proper business then that's a no -


Keeping on topic this steering lock subject was discussed last week - it maybe worth PM'ing some experts if they can help

[Diagnosticated]

Unfortunately I need information at coding level which is hard to find. I think I have identified most of the important data in my immo chip dump and thanks to DK member I have PIN and CS decrypted. I was hoping that I might find an error in the hex dump if I could understand it better. This is now looking unlikely. I think I understand the fault, I just cannot find a reason for it. Local VW dealer already fitted two new steering locks which would not program When VW UK told them to fit 3rd steering lock and new CCM, at my expense, I said no and had car transported back to me. So I either fix it or have a bonfire.

[Weasel3]

No electric vehicle for me:) yet. But I think that will be the future for many vehicles.

Set up a fundraiser. 1000 USD or more. DK members will contribute?
Invite the developers. Like AVDI - AD - IEA - and all the other good developers. Let it be a competition between them. Its a matter of honour for them, I hope.
Winner get fame and glory. And respect and goodwill here at DK.

[JIMMYQ]

been through this problem many times your ccm is corrupt you either need someone to online to code you a virgin ccm module or try swapping the 95320 onto the virgin box which also works ( sometimes) and I don't think you can code the CCM with vcds. Vcds just about does the steering lock here is the procedure for a new lock

Make sure a battery charger is connected so the voltage is maintained.

[25-Immobilizer]
[Adaption - 10]
Leave channel at "00"
[Read]
[Save]
[Done, Go Back]

[Security Access-16]
Enter the vehicle PIN in a 5 digit format.
[Do it!]
[Adaption - 10]
Read Channel 051.
The Stored Value will be 32000. Enter the PIN in the New Value box.
[Test]
Wait | N/A | N/A | N/A Will be displayed. Wait until the ID numbers are transferred into the first 2 boxes. If you aren't sure, be patient and wait at least 30 seconds!
[Save] (Note: if Save is not available and the data in the last step has transferred continue by exiting)
[Done, Go Back]

Check fault codes in all installed control modules and clear them as needed.]


if this does not work or pin is not accepted move onto the CCM as the fault is there 100%

[Diagnosticated]

Thanks for procedure for steering lock. Unfortunately I have tried this many many times and it doesn't work. Either PIN is refused or PIN is accepted but adaptation is refused. I have copied CCM immo chip data into a used CCM (same part No. ) so far this doesn't work either. VCDS cannot program a steering lock to the car and neither can the VW dealer tool.

Thanks everyone for help, comments etc. Car finally fixed.

[i_shot_the_sheriff]

How did you fix it in the end friend ?