Newbie having trouble reading 03 silverado pcm

[averylooper]

Hi all, first post, hopefully in the correct area. I'm trying yo read my 03 silverado 1500hd 4x4 pcm. tried a few times.
I read the pcm for another swap, made slight mods, wrote a few times, no prob.
tried a few searches, no luck. any help is appreciated. tia
here is my log file using universal patcher with pcm hammer.
[10:26:26:417] PCM Hammer 021
[10:26:26:433] Saturday, September 07 2024 @10:26:26:43
[10:26:26:636] Thanks for using PCM Hammer.
[10:26:27:277] Device Found: OBDX Pro VX
[10:26:27:370] Device Successfully Initialized and Ready
[10:26:58:253] VIN: 1GCGK13U93F211227
[10:26:58:284] OS ID: 12579405
[10:26:58:299] Hardware Type: P01_P59
[10:26:58:331] Calibration ID: 12582603
[10:26:58:346] Hardware ID: 12580786
[10:26:58:441] Serial Number: 0HA013AL3072
[10:26:58:456] Broad Cast Code: YDNK
[10:26:58:487] MEC: 0
[10:27:17:138] Will save to C:\Users\m2cra\OneDrive\Desktop\ls\bins\03.bin
[10:27:27:209] Querying operating system of current PCM.
[10:27:27:240] OSID: 12579405
[10:27:27:350] Unlock response truncated, expected 6 bytes, got 5 bytes.
[10:27:27:350] Unlock response truncated, expected 6 bytes, got 5 bytes.
[10:27:27:350] Unlock response truncated, expected 6 bytes, got 5 bytes.
[10:27:27:350] Unlock succeeded.
[10:27:27:381] Attempting switch to VPW 4x
[10:27:27:413] Module 0x40 (body controller) has agreed to enter high-speed mode.
[10:27:27:540] Module 0x29 (brake controller) has agreed to enter high-speed mode.
[10:27:27:677] Module 0x10 (engine controller) has agreed to enter high-speed mode.
[10:27:27:807] Module 0x60 (driver information display) has agreed to enter high-speed mode.
[10:27:27:932] Module 0x97 (personal communications) has agreed to enter high-speed mode.
[10:27:28:069] Module 0x1A (transmission controller) has agreed to enter high-speed mode.
[10:27:28:204] Module 0x58 (restraint controller) has agreed to enter high-speed mode.
[10:27:28:339] Module 0x85 (entertainment system) has agreed to enter high-speed mode.
[10:27:28:469] Module 0x98 (climate control (HVAC)) has agreed to enter high-speed mode.
[10:27:28:593] Module 0xA6 (convenience (door/seats/window/etc)) has agreed to enter high-speed mode.
[10:27:28:734] Module 0xA1 (convenience (door/seats/window/etc)) has agreed to enter high-speed mode.
[10:27:28:862] Module 0xA7 (convenience (door/seats/window/etc)) has agreed to enter high-speed mode.
[10:27:29:003] Module 0x89 (entertainment system) has agreed to enter high-speed mode.
[10:27:35:542] Permission to upload kernel was denied.
[10:27:35:557] If this persists, try cutting power to the PCM, restoring power, waiting ten seconds, and trying again.
[10:27:35:557] Failed to upload kernel to PCM
[10:27:35:588] Clearing trouble codes.
[10:27:36:651] No response to send attempt. 8C FE F0 14
[10:27:36:687] Elapsed time 00:00:09.3008605
[10:27:36:698] Read failed, Error
[10:32:27:481] Write canceled.

[kur4o]

[10:27:29:003] Module 0x89 (entertainment system) has agreed to enter high-speed mode.
[10:27:35:542] Permission to upload kernel was denied.

There is 6 seconds gap without keep alive message and pcm reboots. That is what prevent the upload.
Try pulling fuses until you get a shorter gap, waiting for a permanent fix.

[averylooper]

thankyou, i'll give it a shot!

[antus]

Or disabled 4x communication, and do it at 1x if there are problems with the switch to 4x. It'll be slower, but might mean you can get it working in car without putting the pcm on the bench.

[averylooper]

Right on, thank you, sir.I will try that when I go back to the shop today

[averylooper]

Thanks alot!!! here's the log file jic it can help someone else, and youre right, it took a while!
[03:13:48:013] PCM Hammer 021
[03:13:48:029] Sunday, September 08 2024 @03:13:48:02
[03:13:49:310] Device Found: OBDX Pro VX
[03:13:49:357] Device Successfully Initialized and Ready
[03:13:54:640] VIN: 1GCGK13U93F211227
[03:13:54:687] OS ID: 12579405
[03:13:54:687] Hardware Type: P01_P59
[03:13:54:718] Calibration ID: 12582603
[03:13:54:749] Hardware ID: 12580786
[03:13:54:828] Serial Number: 0HA013AL3072
[03:13:54:859] Broad Cast Code: YDNK
[03:13:54:890] MEC: 0
[03:14:01:031] Thanks for using PCM Hammer.
[03:14:13:159] Will save to C:\Users\m2cra\OneDrive\Desktop\ls\bins\03 1500hd.bin
[03:14:23:192] Querying operating system of current PCM.
[03:14:23:207] OSID: 12579405
[03:14:23:317] Unlock response truncated, expected 6 bytes, got 5 bytes.
[03:14:23:332] Unlock response truncated, expected 6 bytes, got 5 bytes.
[03:14:23:332] Unlock response truncated, expected 6 bytes, got 5 bytes.
[03:14:23:348] Unlock succeeded.
[03:14:23:363] 4X communications disabled by configuration.
[03:14:26:442] Kernel upload 48% complete.
[03:14:29:709] Kernel upload 100% complete.
[03:14:29:850] No response to send attempt. 6C 10 F0 3D 00
[03:14:30:287] Kernel Version: 00000000
[03:14:30:287] kernel uploaded to PCM succesfully. Requesting data...
[03:14:30:319] Flash chip: Intel 28F800B, 1mb
[03:14:43:338] No response to send attempt. 8C FE F0 3F
[03:14:51:701] Unable to transmit, Timeout: 8C FE F0 3F
[03:15:00:046] Unable to transmit, Timeout: 8C FE F0 3F
[03:19:49:322] Unable to transmit, Timeout: 8C FE F0 3F
[03:21:15:814] Unable to transmit, Timeout: 8C FE F0 3F
[03:25:08:454] Unable to transmit, Timeout: 6D 10 F0 35 01 10 00 06 B0 00
[03:39:33:390] Read complete.
[03:39:33:390] Read-request messages had to be re-sent 492 times.
[03:39:33:406] We're not sure how much retrying is normal for a read operation on a 1024kb PCM.
[03:39:33:406] Please help by sharing your results in the PCM Hammer thread at pcmhacking.net.
[03:39:33:406] Starting verification...
[03:39:33:445] Calculating CRCs from file.
[03:39:33:453] Initializing CRC algorithm on PCM, this will take a minute...
[03:39:33:547] Requesting CRCs from PCM.
[03:39:33:547] Range File CRC PCM CRC Verdict Purpose
[03:39:35:939] 0E0000-0FFFFF A873B6D7 A873B6D7 Same OperatingSystem
[03:39:38:858] 0C0000-0DFFFF 807305D6 807305D6 Same OperatingSystem
[03:39:41:220] 0A0000-0BFFFF 807305D6 807305D6 Same OperatingSystem
[03:39:44:184] 080000-09FFFF CA3CB0F4 CA3CB0F4 Same OperatingSystem
[03:39:47:101] 060000-07FFFF 9A433D6B 9A433D6B Same OperatingSystem
[03:39:50:052] 040000-05FFFF 635F236F 635F236F Same OperatingSystem
[03:39:52:969] 020000-03FFFF 9667FFB0 9667FFB0 Same OperatingSystem
[03:39:54:746] 008000-01FFFF AEA56093 AEA56093 Same Calibration
[03:39:54:969] 006000-007FFF F618ED4A F618ED4A Same Parameter
[03:39:55:195] 004000-005FFF 85B5BB36 85B5BB36 Same Parameter
[03:39:55:560] 000000-003FFF 6A096F07 6A096F07 Same Boot
[03:39:55:575] The contents of the file match the contents of the PCM.
[03:39:55:606] Clearing trouble codes.
[03:39:56:669] No response to send attempt. 8C FE F0 14
[03:39:56:732] Clearing trouble codes.
[03:39:57:005] No response to send attempt. 68 6A F0 04
[03:39:57:840] Elapsed time 00:25:34.4789583
[03:39:57:858] Saving contents to C:\Users\m2cra\OneDrive\Desktop\ls\bins\03 1500hd.bin

[antus]

Cool. But keep in mind that is not a good connection. You shouldnt have unexpected messages and unable to transmit, and 492 retries. PCM Hammer was able to work around the problems, but I wouldnt consider it stable for write and carries some risk. There is a chance it will be able to succeed with retries but if it doesnt you might brick. You would be better off reading and writing on the PCM. Something in that car is not going quiet when it should and is interfearing with pcmhammer. There is a good chance that its something like an aftermarket stereo, you might be able to unplug it, or pull its fuse and get a proper read, or it could be some other module in the car that is misbehaving.