NefMoto

I've been trying to get my SKC for my car for some time (03 A4 3.0) and every attempt has been unsuccessful. I want the SKC so I can attempt to add new keys to my car without needing the dealer to do it, but it's pretty hard to do when you can't get a working SKC. Here is a screenshot from VAG K+CAN after reading the ECU EEPROM data. Based on the info I've found, the SKC should be 01C0 converted to decimal, which would be 00448. However, when I attempt to log in to the ECU with VCDS and the SKC 00448, it does not accept it. I've tried moving the 0's around, but don't remember every combination that I've tried. If anyone could help me in finding the SKC, it would be greatly appreciated. I have also tried VAG-Tacho to get the SKC and ArgDub's tool via OBDII, but neither of those have worked for me either.

Odd. Can you try retrieving the SKC from the cluster instead of the ecu? What's the cmd you used with argdub's tool, and what error did you get?

I've had the same issue; I pulled my eeprom dump using Vag Commander 2.5, and it returned 03016. so then I pulled my cluster dump, but couldn't find any pattern of the same value. I suspect that when I go to test VCDS it wont accept the key.

Pull the bin using argdub's tool.

It has been a little bit since I last used ArgDub's tool, but it would never properly connect via OBD2 for me. I posted in the thread for the tool here (http://nefariousmotorsports.com/forum/index.php?topic=1168.msg22896#msg22896) and here (http://nefariousmotorsports.com/forum/index.php?topic=1168.msg22911#msg22911), but never found a way for it to properly connect.

As for reading the SKC from the cluster, do you have a reliable method to do that? I've read horror stories of people bricking their cluster when trying to read from it. I'd rather not have that happen as I can't really afford having my car down for days getting it fixed if something would happen.

What year is your car?

2003 A4

Yeah, no way I'd attempt anything on a b6 cluster (or ecu) with a clone tool. Too much to risk. Have you successfully entered bootmode with your ecu yet? me7.5's are tricky (compared to 7.1 and 7.1.1.). I'd like to see your CMD string, and the error that resulted while trying to read the ecu with me7_95040.

No, I haven't tried anything outside of OBDII access as I don't have any other way to read the ECU. From what I've read about me7_95040, you need a benchtop setup to use bootmode.

It is my understanding that when pulling the SKC from the cluster you can only get the 4 digit one.( I have done this personally on my '02 GTI) The 7 digit one when using VCDS requires the workshop code and the date the SKC was retrieved from the GEKO system. Nowadays the dealer has to dial up GEKO while the car is connected to the diag machine and everything is automated. The tech doesn't see the SKC anymore and has no way to find out what it is.

In order to know the date and workshop code, I guess you'll have to locate the info in the .bin file like you did the 7 digit SKC. I have no idea where they would be in the .bin. If someone figures it out please post the locations.

VCDS still allows you to use a 5 digit pin, although you also have the ability to use a 7 digit pin, it isn't the default

Yes, afterI pulled the 4 digit code from my cluster using vag-tacho I had to add a zero to the front of the 4 digits and it worked in VCDS.

..and I had to flip the last 2 numbers around, if I recall correctly.

On all ECUs or just IMMO-2 boxes?

If a 5 digit pin will work on my ECU, I'll be thrilled.

Just download an older version of vcds that uses the 5 digit pins.

you don't have to do that. The 5 digit pin works with the newest version of VCDS.

Sorry it took a few days to get this, but here is the output from me7_95040. I tried it in a regular CMD window and also an administrator prompt, same results.

I also tried to use the two bits decoded to decimal without flipping them (C001 -> 49153) as the pin, and that didn't work.

Bootmode?

BTW-I changed the name of the exe to immo, and put it in my user folder. My command looks like this:

immo --OBD -r -p1 95040.bin

Is there a way to put it into bootmode without removing it from the car and having a bench top setup?

You can add a momentary switch and mount it to the ecu case.

I just tested my harvested pin today; my pin was accepted under the ECU login, but the SKC pin was not accepted in electronics->start/auth. I suspect it's because I just have an evaluation version of VCDS lite.

imnuts, are you using a registered version of VCDS?

Yes, I have the HEX->USB+CAN cable. As for putting a switch on the ECU, I was more wondering if there was a way to get into bootmode without having to take out the ECU and open it up. I want the SKC, but not that badly.

VCDS cables aren't a sure thing. Get a cheap ebay cable, I bet it works.

I've tried both an eBay cable I got from a knock-off VAG K+CAN Commander, a cable from a knockoff VAGTacho, and also my Ross-Tech cable. If it communicates properly with the cable I'm using, I get the same results. The VAGTacho cable only works with VAGTacho from what I've found, but the other two cables seem to work with the other things I've tried so far.

To be honest, I've run across a number of me7.5's I couldn't read with argdubs tool. They flash just fine though.....

(assuming you don't care about the contents of the eeprom, you can always flash a virgin or off'd file using argdubs tool in bootmode)

At this point, I may just buy two plastic keys and get them cut then programmed and pull the IMMO chips out of them. I want/need the SKC so I can pair new keys to my car, but the dealer tried previously with the B7 keys I want to work with my B6 and they failed, so I figure if they have plastic B6 keys to work with, it'll be easier for them to do and they won't give me grief about "these keys don't work with your car".

Why don't you use the PIN from the cluster using vagtacho or whatever to get it? I have done this myself on my '02 Golf GTI 1.8t AWP with me7.5 HS box using VagTacho(knockoff). I dont remember which numbers you have to switch but you have to put a "0" in front also, to make it 5 digits. Then, you can use it to do your immo/keyfob stuff using any paid version of VCDS/VagCom or a genuine Ross-Tech cable, which unlocks any version of VCDS/VagCom to the full version..

However, I had to attempt connection to the cluster using vagtacho multiple times. About around the 10th time or so it will connect up, sometimes sooner like the 4th..I have no idea why it performs like this but whatever, it showed me the PIN. You can also change the mileage readout on the cluster using vagtacho.

DO NOT ATTEMPT TO CHANGE MILEAGE ON B6'S AND NEWER WITH A CLONE TOOL!

They don't properly do the checksums and you'll end up with a DEF error!

imnuts; how's this coming along, have you tried anything else? It seems like you're so close. Which module are you trying to access, and have you tried any of the others?

So, and update to this. I got my keys programmed via the dealership yesterday, finally have B7 keys on my B6 ;D However, I watched a bunch of YouTube videos from Ross-Tech and found something to try to test the SKC I pulled from the ECU. Apparently I was attempting to log in via the wrong location in VCDS. Just went out, opened up VCDS, went to the Instrument Controller (#17) and logged in without an error. Tried to log in to the ECU with the same pin, and it doesn't work. Not sure why it would work one place and not the other, but I plan on testing it out soon.

The dealer missed one of my keys yesterday as it fell out of the service order pouch. I gave them 4 keys, but only 3 were paired because of this (and a trip back to the dealer cause they didn't realize the key was missing). I didn't care because I had 3 keys that would start my car and only would really use the plastic key that isn't paired now for unlocking my car in case all other keys were locked inside (not sure how that'd happen). So, now that the SKC seems to be correct, I will test it out to see if I can match all of my keys. Hoping for the best as I'd love to get a color DIS cluster and replace my monochrome one that has the upper portion of the display dying.

EDIT: And after watching the ECM/Cluster matching video, it appears I am trying to log in to the ECU/ECM at the wrong spot in VCDS :'( Feel kind of dumb, but lesson learned and excited to be able to do pretty much anything to my car now :)

To provide a little more closure, I verified that I have the proper SKC today. Logged in to the ECU/ECM successfully. Then went and logged in to the cluster and paired all 4 keys I have to my car. Dealer missed the one and I didn't feel like having them fix it since I didn't have all of my keys when I went and picked up the one they missed as they dropped it out of the service pack. Paired my keys and then verified that they all start my car. Now to go and find a color DIS cluster to replace my dying monochrome DIS cluster.