RomRaider

No


I don't have time and resources to implement and test that. But nisprog is open source ; nothing prevents you from trying.

Good. Thanks for your support, but I'm not a programmer.

Don’t ask how I obtained this knowledge, butttt I can confirm that attempting to run the ECU kernel when connected to the TCM doesn’t work. Gets a general padding error and Nisprog errors out. No DTC’s get set in the TCM and it’s still fully operational. So we can 100% confirm that the steps to reflash the TCM are not 1:1 with the ECU’s, or at the very least, require proper security access first haha

Hi everyone! So, long story short, I live in Ukraine and I'm 'lucky' owner of tuned Infiniti G35 (turbo kit from GTM was installed by the previous owner). Finally, I and servicemen made a hardware upgrade for my RE5R05A transmission (my transmission has been broken 2 times for 1000km) using Kia Sorento's internals Now there are some issues with gears shifting (for example, there is a delay for 2 seconds from 4th to 5th etc.). So I'm thinking about flashing my TCM to firmware from QX56 (or other versions with more torque than a stock G35). The deal is that I'm a noob in this and unfortunately I didn't find anybody who could help me.. Even Infiniti/Nissan dealers told me that they don't reflash anything. I did a long way to build an upgraded hardware version of this tranny and don't want to give up. So my question is what should I do to be able to reflash my TCM? Could someone help me with the info, please? As I understand from the information that I read on the Internet, I need to buy the following:
1) Consult 3 cable
2) X-Prog-Box
Am I right?

Unfortunately, we aren't able to reflash the TCM at the moment. While NERS is able to reflash certain TCM's, I personally can't provide any definitive information on the subject. Especially when it comes to trying to flash with a different vehicle's ROM. Have you tried adjusting the "Engine Torque Map" within the ECU's ROM? This map affects transmission line pressure, which potentially could help with the delay you're experiencing.

Another possibility is an error in the install of the upgraded components. I've heard of too many horror stories to ever be 100% certain that something was installed properly. But the fact of the matter is that any built RE5 is running OEM software. Yet, there are plenty of 500whp+ (and 500lb-ft+) examples. The only difference between them all in terms of software would be if the engine torque map stored in the ECU has been adjusted or not. So that would be a good place to start for sure! But a TCM reflash doesn't appear to be required based off what the current evidence would suggest.

Why would you even try that ? they're completely different processors , this was absolutely guaranteed to fail.

If you somehow managed to get nisprog to even send a kernel payload, that means you passed the SID27 step; that's good...

Look, I said DON'T ASK haha I was testing out TCM SIDs and forgot to switch the config back to the ECU's destaddr when I went to reflash my ECU's ROM. Now I'm very aware of what my config looks like before attempting to reflash lol But don't worry, it wasn't intentional at least!



Hmmm. A quick glance through Nisprog's code shows that padding errors wouldn't occur until $34, but what would cause the general padding error? "General" probably means "anything" in this context. I suppose passing $27 is a good step though.

"general padding error" ? Are you sure you're reading that right ?
Unless you mean you see nisprog reports the usual "Padding with garbage" message, and then the next step fails with a general error ?

The padding operation can't really fail, it's just adjusting the size to get even chunks.

It’s been a while, but I think Nisprog showed “General padding error” within one of the messages before erroring out? I suppose it’s possible that it did padding and then general error, however. But do note that it spammed a bunch of messages and then auto-closed, so I can’t completely verify what all was said. :/ I suppose since Nisprog can only return what YOU tell it to, you'd be able to see if Nisprog can even return a "General Padding Error" message. When I checked, I couldn't find any "general padding error" text. So I'm not sure if Nisprog can even return such a thing.

Is there a way to safely test if security access is granted? Or does $27 in and of itself have a method of verifying if access is granted?

Hi Pytrex, thanks for your reply! Oh, but I found that it could be done in this article https://www.drive2.ru/b/538547668306101122/ (The author of this article is also registered on this forum, his nickname is P1on3R and you could see his reply in your thread viewtopic.php?f=65&t=16839). But as I understand it requires disassembling and soldering...
> Have you tried adjusting the "Engine Torque Map" within the ECU's ROM?
Unfortunately, I'm not familiar with ECU/TCM tuning.. I'm trying to get knowledge at this moment (to be able to drive my car only, not for professional purposes). And I thought that besides ECU, TCM also requires a firmware update to the version of a car with more torque (for example, to a QX56 firmware).
Thanks a lot for your suggestion! I think I will read about "Engine Torque Map" and other tuning-related articles.
P.S. I understand that it should be done by a professional tuner but at this moment my car has been tuned by two separate servicemen and I don't like how it drives and even starts. And also guys that rebuilt my transmission told me that car doesn't drive 'smooth' from their point of view. There are few tune service centers near me and I can't trust them right now so I'm trying to figure out how to tune the car myself.

Is this even possible? I've never heard of anyone doing anything with these SIDs, so I'm really not sure about what they're capable of.

Analyzed a TCM .dll from NERS within Ghidra and it looks like the $34-$37 stuff IS one of the flashing methods. But again, I've never seen these used before so I have no idea what limitations exist.

They're exactly the same SIDs that nisprog uses for ECU reflash over the K-line, and also the same SIDs that RR uses for ECU reflash over CAN. So while you may never have seen them, you've definitely been using them!

Is there a factory reflash .dat file for TCMs available from Nissan ?

Oh! Well I take that back then haha At least that means Nisprog already knows what to do WHEN we're at that part of the process! I was a bit worried about THAT portion because I couldn't find many examples online showing how to actually use those SIDs, so it's great that I won't have to figure out their full functionality


Yup! Buuuut I've messaged them twice in the past year for my TCM's .dat file and they just ignored me :/ Sooooo I'm gonna look through my Consult .dat files to see if I can find one that's at least for a KWP RE5 TCM.