Mercedes ME 9.7 AMG SCN Coding Problems

[nemiro]

I have a problem with coding and flashing modules of ME 9.7 AMG. I have tried many combinations of hardware and software. First I will describe the problem and then the steps I took to fix it. I am trying to perform a coding or flashing operation with Vediamo 4 (AutoGMT version) or Vediamo 5 (AutoGMT version) and I get this error:


This would mean that the ECU is not unlocked. I have tried various variations of DJ_Zugriffsberechtigung, getting the answer "Result: 0", which is what we are looking for. I have tried this with four different ECU modules. Two normal ME97AMG modules (2MB) and two 66 MHz ME97AMG modules (4MB). I have tried direct connection to the ECU on the bench and in cars (via ZGW etc.), always the same results.

Going to DAS (via Xentry or DAS Standalone) results in "Communication Error" dialogs, which also indicate a locked ECU. DTS Monaco returns NRC=22, NRC=44 or NRC=88, depending on which unlock commands were issued previously.

I also tried this on three different laptops, with the software running natively and in virtual machines. No difference. Always the same error.
As for the hardware to connect to, I have already tried C4, Tactrix Openport and SM2Pro. Again, all give the same error.
Finally, a very knowledgeable person connected to my computer, tried it and got the same result.

This makes me think:

1. Most likely the problem is not with the hardware or the PC, as many combinations give the same result
2. This is not necessarily a software issue as DTS Monaco, Xentry, DAS and Vediamo do not work
3. It is unlikely that the problem is related to the hardware or firmware of the ECU, since I have four of them (all of which control the engines of the cars they are installed in)
4. There are some procedures that I skip or do incorrectly

All other functions work fine. I can interact with modules. Virginize them via VVDI, and then teach in drive authorization. Reading actual values, performing adaptation reset, camshaft teach in, etc. I just can't flash or code these.

I have read many times that ME 9.7 is a "seedless" ECU. There are seed key options in the menu, but I couldn't get any of them to work. Surely someone has encountered this and knows what to do? Please help!

 

[Mersovod]

ME 9.7 is easily coded into DAS.

1. Engine off, ignition on
2. Activations DJ_Zugriffsberechtigung... Result 0 (inverse)
3. Implicit_Coding_ME97

There are errors, but you re-enter the block and that's it.
True, I use C4. Openport 2.0 does not always work correctly.

 

[nemiro]

This is the ME 9.7 AMG version, which may explain some of the issues.
I've tried C4, as well as Openport 2.0 and SM2Pro.

 

[nemiro]

Figured out the problem! If you are building a programming bench, most guides will tell you that you need one of the grounds, +12V going to pins 15 and 16, and the CAN-C bus. In addition to this, you need to activate power on terminal 87 on pins 3 and 5. Suddenly everything works! The strangest thing is that I also had problems with the car coding. Looks like I'll have some more troubleshooting to do there as well.

I retested with VMs running both Vediamo 4 and Vediamo 5, with Star C4 and SM2Pro, and this was confirmed. I also tested with an early (2007) ME 9.7 AMG ECU and a later 66 MHz version. I was able to code both ECUs using both sets of software and J2534 hardware.

 

[Mersovod]

Most likely the problem is that the multiplexer did not see terminal 87 (IGN ON).

 

[nemiro]

Technically, the ECU did not see terminal 87. The multiplexer does not connect to terminal 87 directly.