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  1. kidturbo

    LLY Ficm

    Are a bit sticky on the one IC that heat sinks to the bottom of case. I used 2 flat head screwdrivers, is that bad? LOL
  2. kidturbo

    LLY Ficm

    At risk of disclosing TMI, I'm now 100% certain these units are just a stand alone amplifier design. By removing the canbus connection, it verified the control wires do all the heavy lifting related to pulse width and timing. If not, it would have failed to fire. Which should be noted was tested...
  3. kidturbo

    LLY Ficm

    I did try calling before sending the email, but it said no one avil on the English promt line, and to send email. I have a couple pals who live close to that office address. So might see if one will go convey a request in person. But I doubt they will come off anything useful.
  4. kidturbo

    LLY Ficm

    Hey Jason, believe we just got go ahead from Bosch to build the FUCM... I sent an email with the LLY part # to Bosch Repair last night asking about replacing burnt up boards. Here is their reply. We do not offer repair / testing / replacement / new part of this product. Reasons for this can...
  5. kidturbo

    LLY Ficm

    I'll test that part on the bench for ya. My thought is if we "Do Not Report" that U0105 code on the ECM, it should cancel all further test procedures related to the FICM. No deep dive into the LLY code required if so. How soon can you have a couple driver boards ready to bench test? I'm going...
  6. kidturbo

    LLY Ficm

    @1FastBrick I received that APPS you sent me. No need to pull the canbus wires out of FICM on your truck now. Repeat !! DO NOT PULL THE CANBUS WIRES OUT OF YOUR FICM !! :-) Sent from my SM-S901U using Tapatalk
  7. kidturbo

    LLY Ficm

    At least we know it runs without any CANbus connections.... Good Work.. PS. I knew it would throw a fit when ya did that.. See comment above about the clipper and nuts.. LOL
  8. kidturbo

    LLY Ficm

    Now that this LB7 board powers up again, decided to make it our test dummy for digging out the firmware. After looking at pinout for all the other EDC15 examples, came up with these possible locations for the K-line pin. 16, 48, 82, and 35. Can eliminate 48, because an injector control wire...
  9. kidturbo

    LLY Ficm

    I wasn't able to isolate the K-line for certain, but did repair my first LB7 board tonight. The reported issue was ground related. Found It.. Alive and well again. File this one under, dang that ground terminal pin got hot for some reason... There seem to be two separate ground planes on...
  10. kidturbo

    LLY Ficm

    That's why I didn't mind cutting the engine side of Kodiak harness. That and cut the socket side out of a burnt up FICM board, and ya have a patch cable set. Not sure how it would work with 20' of cord on the injector wires however. Could spill your Pepsi and fry yourself in the cab..
  11. kidturbo

    LLY Ficm

    Maybe that's the reason all my buddies get nervous when I say "just a little snip.." Ain't like it's your nuts or something [emoji2957] Sent from my SM-S901U using Tapatalk
  12. kidturbo

    LLY Ficm

    Nope, they are different pins. No locks like the bosch. Check the bail connector, which is probably easier to get at. Disconnecting either one should drop the bus long enough to tell if runs without. Sent from my SM-S901U using Tapatalk
  13. kidturbo

    LLY Ficm

    Exactly.. Let me check. Just so happened I had to move my E38 aside on the bench to work on this FUCM.
  14. kidturbo

    LLY Ficm

    1 038 312 341 is certainly our board part # Revision 03.. Which helps when I get someone at Bosch Repairs on the line and ask that general question about replacement boards.. I'll dig on it for a bit, but somewhere there there is a cad file drawaing of that board... Looks like that's Bob's...
  15. kidturbo

    LLY Ficm

    BT is much better at the K-Line related stuff than I am. He was working on side of it when we both started playing with HS GMLAN stuff long ago. J1939 is the part we both skipped over, because it's a "nothing new to see here" well defined protocol. Both the LB7 and LLY ECM have K-Line to the...
  16. kidturbo

    LLY Ficm

    What did I miss while asleep?? Yeah I knew it couldn't be to difficult, at least related to sorting out the difference between the LB7 and LLY versions. Especially when ya put a few gear head hackers together with a common goal... LOL. This chit is now 23yrs old. Amazing any of them still...
  17. kidturbo

    LLY Ficm

    Hey Jason when you get a minute, please peal the sticker off this chip on a LLY board and see if it isn't a Am29F040B also. That flash chip came in several configurations. I'm still searching forums, and the rectangular version of the Am29F040B is most popular. There is also a Bosch branded...
  18. kidturbo

    LLY Ficm

    According to info in link above, these units will likely have a K-Line in that unused stack of pins somewhere. We just need to trace it down, stating with pin 16. I noticed that almost all of the EDC15 and 16 units have K-Line and CANbus. What's the odds GM never found a need to hook it up...
  19. kidturbo

    LLY Ficm

    Wouldn't ya know it, I had the last link above open, exactly where it talks about the Flash chip on the EDC15. Flash eprom: Am29F400 The flash contains the program and maps for the ECU. EDC15P has 512KB (4 Mbit) flash memory in which it can store multiple map segments for different situations...
  20. kidturbo

    LLY Ficm

    I just cracked open this one, and after 30 seconds with a continuity meter, thinks it's issue is pin2 ground is dirty in the connector side. Will check it tomorrow, but wanted to see if we can locate the firmware chip, or jtag ports to tap into. Also any markings on pcb. Found Couple points...
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