houddawg

Hey folks, Im swapping a 3800sc from an 03 park ave and I cant get to the bin file. Says I need a seed key to unlock. The car I got it from was bone stock so I doubt its had any tuning done to the pcm. Heres what I get on pcm hammer
[03:03:09:909] PCM Hammer 021
[03:03:09:913] Friday, July 01 2022 @03:03:09:91
[03:03:09:951] Thanks for using PCM Hammer.
[03:03:10:928] Voltage: 0.0V
[03:03:10:944] Elm ID: ELM327 v1.4b
[03:03:10:976] ScanTool device ID: STN1130 v5.6.19
[03:03:37:331] VIN: 1G4CU541234167745
[03:03:37:362] OS ID: 12581391
[03:03:37:366] Hardware Type: P01_P59
[03:03:37:410] Calibration ID: 12581385
[03:03:37:442] Hardware ID: 12202610
[03:03:37:556] Serial Number: 2JV2GX3041
[03:03:48:287] BCC query failed: Error
[03:03:48:314] MEC: 0
[03:03:57:636] Will save to C:\Users\bob\Desktop\tuners\PcmHammer021\PcmHammer 021\g.bin
[03:04:04:518] Querying operating system of current PCM.
[03:04:04:565] OSID: 12581391
[03:04:04:726] The PCM didn't accept the unlock key value
[03:04:07:830] Unable to process unlock response.
[03:04:07:832] Unlock was not successful.
[03:04:32:235] Will save to C:\Users\bob\Desktop\tuners\PcmHammer021\PcmHammer 021\g.bin
[03:04:33:542] Querying operating system of current PCM.
[03:04:33:577] OSID: 12581391
[03:04:33:690] User Defined Key: 0xFFFF
[03:04:33:721] The PCM did not accept the key - too many attempts
[03:04:36:808] Unable to process unlock response.
[03:04:36:816] Unlock was not successful.
[03:04:55:177] VIN: 1G4CU541234167745
[03:04:55:224] OS ID: 12581391
[03:04:55:226] Hardware Type: P01_P59
[03:04:55:273] Calibration ID: 12581385
[03:04:55:305] Hardware ID: 12202610
[03:04:55:401] Serial Number: 2JV2GX3041
[03:05:00:764] Unexpected response to STPX with data: FB ERROR
[03:05:00:767] BCC query failed: Error
[03:05:00:780] Unexpected response to STPX with data: FB ERROR
[03:05:00:796] Unexpected response to STPX with data: FB ERROR
[03:05:00:799] MEC query failed: Error

Any help much appreciated!
bob

NSFW

I've never seen that OSID before. It might be a rarely-used factory OS but it might also be from HPT, EfiLive, or some handheld programmer.

It's also a little weird for the BCC query to fail, but that doesn't affect anything since the app doesn't use the BCC value for anything. I just threw it in there in case someone would have a use for it.

You can probably skip the seed/key step by grounding a pin on the back of the PCM's PCB for a couple seconds, as shown in this video:

houddawg

Just getting back to this and other things, had surgery on my hand and its still in a cast. I got rid of the obdlink sx and got an obdxpro, still jammed up on the seed key. Thanks for making that video! I opened up the pcm and couldnt find the pin to ground, my board looks different. I took some pics of it, it has an intel chip. Could I write a new stock l67 tune to this without getting the original bin file?




Thanks in advance!
bob

JeffreyL

Did you ever figure this out? I'm having the same issue and cant seem to find any other helpful threads

NSFW

OP's issue was that the operating system was modified so that it can't be unlocked. Whoever tuned it might be able to unlock it, or maybe the original tuning software might be able to put it back to stock, but generic software like PCM Hammer can't get in.

If you're using PCM Hammer, press the "Get Properties" button and post the operating system ID. I'll see if it's something from GM or something aftermarket.