Issues with getting an LLY to license and flash

[turbo_bu]

I am trying hard, but having issues with flashing a 2005 LLY K2500 truck (trying to license it using the Program PCM calibrations flash). I have pulled the standard 4 fuses in the underhood fuse box (TBC Batt, TBC Ignition, Info, Radio), but not luck. Then tried again with pulling those 4 plus the Radio Amp, and the Brake one (think that is the ABS fuse) in the Instrument panel fuse box. While in the instrument panel fuse box, I also pulled the three fuses that mentioned TBC (truck body controller which I believe is basically, the BCM). Still same issue - Flashscan could initialize, and load the boot loader, but when it went to detect the ECM, it said PCM not detected.

Short of pulling ever F'n fuse in this thing, what am I missing? Some one said make sure the ABS is pulled, which I believe is the Brake fuse in the instrument panel fuse box. Do I also need to pull the 60 amp fuse in the underhood fuse box too?

This truck does have some aftermarket stuff (blue tooth, cell phone crap), but when you pull the radio fuse, those are no longer powered. There is also a Prodigy trailer brake module .... but it shouldn't be on the data link bus ???? If it was, anyone know which fuse that would be???

A few other things I have tried are checking the Try Alt Keys and using the low speed mode. In fact, these are the settings that I start out with when trying to flash.

Oh, and yes, I can read the ECM no problems. I originally read this truck using BBR ... no issues. I also read the truck using the V2 in pass-thru mode with V7 tune tool. No issues. Right after the read, I went back to try and flash, but same thing - no PCM detected.

BTW - here's the output from trying to flash

20:18:22.218: Current protocol: "SAE J1850 VPW"
20:18:22.234: Interface firmware model: FSV2
20:18:22.234: Interface firmware version: 2.6.41
20:18:22.234: Interface firmware date: Sep 12, 2010
20:18:22.250: FlashScan serial number: 003605546823
20:18:22.250: FlashScan license number: 003605546823
20:18:22.328: Getting status...
20:18:22.359: Status: OK.
20:18:23.093: Bootloader version: DLLY_v1.4C (06F0-035F)
20:18:23.093: Preparing ECM for reflash...
20:18:23.109: ECM seed is: $5161
20:18:23.109: Unlock attempt 1 of 4
20:18:23.234: Initializing ECM...
20:18:24.093: Initializing ECM, step 1 of 4
20:18:24.093: Initializing ECM, step 2 of 4
20:18:24.875: Initializing ECM, step 3 of 4
20:18:24.875: Initializing ECM, step 4 of 4
20:18:25.312: Initializing bootloader...
20:18:25.765: Initializing bootloader, step 1 of 4
20:18:26.437: Initializing bootloader, step 2 of 4
20:18:27.109: Initializing bootloader, step 3 of 4
20:18:27.781: Initializing bootloader, step 4 of 4
20:18:28.281: ECM ready for reflashing.
20:18:28.281: Request GM operating system...
20:18:29.296: Autodetect interface ...
20:18:29.312: Interface firmware version: 2.6.41
20:18:29.312: Connection to [FSV2] interface is OK
20:18:29.312: Autodetect PCM...
20:18:30.312: PCM not detected.
20:18:30.812: Operating System number could not be determined.
20:18:30.812: Generating OS number based on VIN...
20:18:30.812: VIN indicates: 97 Camaro, EFILive generated OS number: 19970100.
20:18:30.812: GM operating system: 19970100
20:18:40.062: ECM is in an unknown state.
20:18:42.406: Disconnecting ...
20:18:42.781: CAN-VPW Bridge Deactivated
20:18:42.781: Disconnected
20:18:42.781: Data transfer was interrupted.
20:18:47.031: Done!

[ScarabEpic22]

Ok, first off you need to upgrade your software. Your firmware is 2.5 years old. And for some reason it's detecting the PCM and generating an OS # based off a 97 Camaro (I dont even think EFILive can tune a 97 Camaro as they were still LT1s...).

Download V7.5 and V8 from here: EFILive downloads page and install both, then upgrade your bootblock first, then firmware.

Then try it again, try it in V7.5 and V8 (my preference, much faster).

[turbo_bu]

Erik,

Thanks for the reply and yes I probably should upgrade. My only issue with upgrading is reading about how some people are having some quirks with flashing and licensing LB7's with the V8 software. And since you can't go back, I am fine with staying this old. It works for my LB7's and LS1's which is what I tend to play with most days of the week. And up to this build of the software, there were no issues with LLY's. Build 139 I believe is when you could brick an LLY ... and the temporary fix was to go back to build 133.

[WisconsinHick1]

You would want to use the V7.5 to flash the LB7 and LLY's. Like Erik stated update your programs and firmware and try again.

[turbo_bu]

The other option I am thinking of pursuing is making a bench flash harness. Does anyone know if the pins from an LS1 harness (LB7) are the same as on an LLY? I have an LS1 harness that I could use to make it into an LLY bench harness if the pins would work.

[turbo_bu]

You would want to use the V7.5 to flash the LB7 and LLY's. Like Erik stated update your programs and firmware and try again.

Yes, I realize that you are supposed to use the different versions of the software based on which ECM you are flashing. I believe though that some people (TheFerminator I think) was having to use V8 to flash his LB7 since V7.5 wouldn't. Thus, I would rather not have to play with undesireable interactions like this if I don't have to.

[ScarabEpic22]

The other option I am thinking of pursuing is making a bench flash harness. Does anyone know if the pins from an LS1 harness (LB7) are the same as on an LLY? I have an LS1 harness that I could use to make it into an LLY bench harness if the pins would work.

Yes, they are supposed to be the same.

Yes, I realize that you are supposed to use the different versions of the software based on which ECM you are flashing. I believe though that some people (TheFerminator I think) was having to use V8 to flash his LB7 since V7.5 wouldn't. Thus, I would rather not have to play with undesireable interactions like this if I don't have to.

Honestly I never use V7.5 for reading or flashing ANYTHING these days. V8 is faster, seems to recover better, and I havent had any issues with it. I understand your hesitation to upgrade, but honestly I think there was a similar issue that was fixed in a release over a year ago...

[WisconsinHick1]

It is very seldom I have heard of the V7.5 software not working and then needing V8. I have had to do it myself for pulling down a stock tune once. But V7.5 is for the most part the best way to flash the LB7 and LLY.

[ScarabEpic22]

Im not saying V7.5 isnt stable or good, just saying Ive had better luck with V8. I do a lot of P10s (VPW) and E67s (CAN), Ive had issues with the P10s for a long time on some trucks with aftermarket stereos (similar to the LLYs) and once I started using V8 I didnt have any issues. Same truck failed repeatedly with V7.5, first try with V8 went just fine. Use whatever works for you, Ive gotten in the habit of just using V7.5 for the editor and scan tool.

[WisconsinHick1]

I guess I will work a few with V8 and see how it works for me.