E92 PCM Reverse Engineering
- Gatecrasher
- Posts: 278
- Joined: Sat Apr 25, 2020 6:09 am
Re: E92 PCM Reverse Engineering
I had to do the additional checksums when I updated my E92a (2017 Corvette).
Re: E92 PCM Reverse Engineering
Do you have a copy of bins with updated checksum with small changes. I looked for patterns all over e92a, but didn`t find any.Gatecrasher wrote:I had to do the additional checksums when I updated my E92a (2017 Corvette).
- Gatecrasher
- Posts: 278
- Joined: Sat Apr 25, 2020 6:09 am
Re: E92 PCM Reverse Engineering
I looked back over my notes and it may have just been CVN I had to fix. Skip shift variables are outside the checksum range. If you look into the code for P0601 DTC you'll find checksum references though.
I'll try to post some better info soon. Been dealing with some serious real life stuff recently.
I'll try to post some better info soon. Been dealing with some serious real life stuff recently.
- antus
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Re: E92 PCM Reverse Engineering
Is there a stock E92A bin to look at?
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396
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Re: E92 PCM Reverse Engineering
Here's a link to a couple.. https://mega.nz/file/875UETTD#mNWdSgTbk ... a3MILA33-oantus wrote:Is there a stock E92A bin to look at?
I can zip up and maybe post up individual bins here but size wise I figured this is easier..
- antus
- Site Admin
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- cars: TX Gemini 2L Twincam
TX Gemini SR20 18psi
Datsun 1200 Ute
Subaru Blitzen '06 EZ30 4th gen, 3.0R Spec B - Contact:
Re: E92 PCM Reverse Engineering
I turned off the auto transmission flag off in this one. It looks like there are 4 edits to the bin.
- Attachments
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- E92 5 byte.2017.Silverado.OS-12691210.stock.bin
- (4 MiB) Downloaded 98 times
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- E92 5 byte.2017.Silverado.OS-12691210.auto trans flag off.bin
- (4 MiB) Downloaded 106 times
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396
Re: E92 PCM Reverse Engineering
Thanks, antus
That will be good enough for some research, how that torque security checksums are stored in engine segment.
That will be good enough for some research, how that torque security checksums are stored in engine segment.
- Gatecrasher
- Posts: 278
- Joined: Sat Apr 25, 2020 6:09 am
Re: E92 PCM Reverse Engineering
You guys might already know this, but I wanted to share something I ran into this weekend. I screwed up one of the checksums on a calibration I was playing with on my 2017 E92A. Programming failed and the ECM stayed in the bootloader like it was supposed to. But the GM tools wouldn't reprogram it because it wouldn't answer mode 10. The bootloader doesn't even have a handler for mode 10, so it didn't give a negative response. It just ignored the request entirely. The software kept saying the module wouldn't respond to a programming request. It was responding to everything else though.
I was able to turn on a function that ignores non-compliant programming responses and from there was able to get a stock file back in the car.
I was able to turn on a function that ignores non-compliant programming responses and from there was able to get a stock file back in the car.
Re: E92 PCM Reverse Engineering
anyone have pdbs or info they want to share for e92 e90 or any other files