P04 R&W Testing

[zack4200]

I don't think the i41 means anything, I have a P08 that says i47 there, and two P04s with c39 and i65

[Gatecrasher]

That's definitely weird. That NHTSA document is strictly about US market, GM branded cars though, and those Isuzu modules didn't come into use until around 2001? Maybe it's some Delphi naming scheme that they stuck with for 3rd parties when they switched to the Pxx naming for the GM parts?

[antus]

Yeah that one was 2000-2004 and was used in the USA. It is Isuzu but from a time when GM had a large stake of Isuzu, which is how a Delphi PCM was used there.

The PDF specifically mentions it in context of the P04, so I guess there is something to it.

[ejs262]

so to attempt reading a P04, do I need to download a beta version of PCM hammer, or just the latest version? I'd like to give it a try on my 03 Gran Damn.

[antus]

You need to download the latest development version. Either compile it yourself or you can download a zip from github but you need to be logged in. Its at https://github.com/LegacyNsfw/PcmHacks/ under actions, click the title of the top one, and there is a 5.08mb zip down the bottom to download.

[ejs262]

Thanks, Later today after swapping a brake master, I'll DL it and give it a shot, I'll post up results.

[Gampy]

The latest PCMHammer Artifact (Test Build) ... No account necessary.

PCMHacks_48b7728b6764a0b6a48ea7c4fced54cf2b93b29c.zip

CheckBuild #86

(2.18 MiB) Downloaded 93 times

Browse to where you saved it during download, drag n drop it where you want to unzip it on the fly, adjust destination directory name accordingly in the Select Destination Dialog, when done, browse to Destination directory, find PCMHammer.exe and double click on it.

[ejs262]

read was a success, and quite fast as well. also, FWIW, this was an in car read, not a bench read. if there's anything I can do to assist in gaining write capability I'm more than happy to do so.

[11:13:01:714] PCM Hammer (4/29/2023, 3:31 AM)
[11:13:01:718] Saturday, May 13 2023 @11:13:01:71
[11:13:02:744] Device Found: OBDX Pro VT
[11:13:02:997] Voltage is: 0.20V
[11:13:03:010] Device Successfully Initialized and Ready
[11:14:11:960] VIN: 1G2NV12E23C303472
[11:14:11:984] OS ID: 12583339
[11:14:11:991] Hardware Type: P04
[11:14:11:992] **********************************************
[11:14:11:993] WARNING: P04 Support is still in development.
[11:14:11:994] It may or may not read your P04 correctly.
[11:14:12:001] There is currently no ETA for P04 Write.
[11:14:12:003] **********************************************
[11:14:12:033] Calibration ID: 12583333
[11:14:12:059] Hardware ID: 12582720
[11:14:12:179] Serial Number: 0W35KB3092
[11:14:12:206] MEC: 0
[11:14:57:911] Will save to C:\Users\ejs26\OneDrive\Desktop\gran damn hammer.bin
[11:15:08:054] Querying operating system of current PCM.
[11:15:08:138] OSID: 12583339
[11:15:08:154] WARNING: P04 Support is still in development.
[11:15:11:546] Unlock response truncated, expected 6 bytes, got 5 bytes.
[11:15:11:553] Unlock succeeded.
[11:15:11:588] Attempting switch to VPW 4x
[11:15:11:655] Module 0xB0 (convenience (door/seats/window/etc)) has agreed to enter high-speed mode.
[11:15:11:785] Module 0x40 (body controller) has agreed to enter high-speed mode.
[11:15:11:909] Module 0x58 (restraint controller) has agreed to enter high-speed mode.
[11:15:12:033] Module 0x10 (engine controller) has agreed to enter high-speed mode.
[11:15:12:158] Module 0x28 (brake controller) has agreed to enter high-speed mode.
[11:15:12:283] Module 0x80 (entertainment system) has agreed to enter high-speed mode.
[11:15:12:409] Module 0x60 (driver information display) has agreed to enter high-speed mode.
[11:15:12:533] Module 0x89 (entertainment system) has agreed to enter high-speed mode.
[11:15:13:733] PCM uses a kernel loader.
[11:15:13:944] Loader upload 100% complete.
[11:15:13:955] Loader Version: 69000104
[11:15:13:958] Loader uploaded to PCM succesfully.
[11:15:14:069] Kernel upload 8% complete.
[11:15:14:241] Kernel upload 54% complete.
[11:15:14:412] Kernel upload 100% complete.
[11:15:15:036] Kernel Version: 82400104
[11:15:15:041] Kernel uploaded to PCM succesfully. Requesting data...
[11:15:15:058] Flash chip: AMD AM29F400BB, 512kb
[11:17:11:988] Read complete.
[11:17:11:992] Read-request messages had to be re-sent 4 times.
[11:17:11:993] Please help by sharing your results in the PCM Hammer thread at pcmhacking.net.
[11:17:12:012] Starting verification...
[11:17:12:038] Calculating CRCs from file.
[11:17:12:047] Requesting CRCs from PCM.
[11:17:12:059] Range File CRC PCM CRC Verdict Purpose
[11:17:13:192] 070000-07FFFF 0B23B998 0B23B998 Same OperatingSystem
[11:17:14:325] 060000-06FFFF 4C66F827 4C66F827 Same OperatingSystem
[11:17:15:463] 050000-05FFFF 5E958314 5E958314 Same OperatingSystem
[11:17:16:596] 040000-04FFFF 6A1D6454 6A1D6454 Same OperatingSystem
[11:17:17:733] 030000-03FFFF B42EA8FD B42EA8FD Same OperatingSystem
[11:17:18:867] 020000-02FFFF A1A0B4E0 A1A0B4E0 Same OperatingSystem
[11:17:20:004] 010000-01FFFF C19492D0 C19492D0 Same Calibration
[11:17:20:578] 008000-00FFFF 50394311 50394311 Same Calibration
[11:17:20:732] 006000-007FFF 85B5BB36 85B5BB36 Same Parameter
[11:17:20:888] 004000-005FFF DDA4548B DDA4548B Same Parameter
[11:17:21:185] 000000-003FFF 9793E56A 9793E56A Same Boot
[11:17:21:192] The contents of the file match the contents of the PCM.
[11:17:21:296] Clearing trouble codes.
[11:17:22:413] Clearing trouble codes.
[11:17:25:546] Elapsed time 00:02:13.9355934
[11:17:25:558] Saving contents to C:\Users\ejs26\OneDrive\Desktop\gran damn hammer.bin

[Gampy]

ejs262,

Thank you for letting us know it worked and in car as well!

I don't know where the PCM is located in the Grand AM, I think it's buried under the dash, thus likely not possible without removing it, it's not that important, don't pull it out unless it's super simple ...

However, If you can see the label on that PCM would you please post the Service Number, maybe you can stick your phone in there and snap a pic of the label??

It's nice to have Service Numbers with the OsID, it helps us build an accurate OsID list, the OsID list is how PCMHammer knows what PCM it's working with.

Thank you!

-Enjoy

[MudDuck514]

Hmm, me thinks your voltage is a LITTLE low:
[11:13:02:997] Voltage is: 0.20V
Or, perhaps there is a glitch in the software?

Mike