Recent content by bogema
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03 LB7 crank no start. No coms with ficm
All good sir. I believe that wire is the one to tap into for your kill switch if those are the codes your getting. I'd bet a few bucks on it. -
03 LB7 crank no start. No coms with ficm
So I check her all over again that same group of wires you highlighted and that I made a list of and a few extras, qnd got the same results just a little higher voltages from being on the chatger. So i started to look backwards. Traced the first wire back to under the fuse panel J2-E6 for the... -
03 LB7 crank no start. No coms with ficm
Yeah the mega fuse test good and only .1v drop across it. Is the pcm/ecm All in one(housing) looks like the diagram, and my tcm on the radiator. I think I'd still be missing wires, and connectorsare incorrect color too? I'll look at the connectors and such in the morning again cause now I'm all... -
03 LB7 crank no start. No coms with ficm
Yeah that looks like the list I came up with as important and started testing and jotted results down. Those 6 pins where what I didn't get any voltage on minus the 1 at .5v. -
03 LB7 crank no start. No coms with ficm
Yeah battery voltage was lower. Didn't have a battery charger on her today. I will reconfirm those numbers in the morning as the truck sits beside the how and my wife is asleep for work in the am. And it's on a charger overnight. All were tested in the run position minus the crank I tried to... -
03 LB7 crank no start. No coms with ficm
I want to thank yall for the help today especially the diagrams as i couldnt find any with pinout eariler. I was able to get some more data. So what I came up with when back probing the ECU (with multi meter set on voltage and ground continuity to negative terminal) Please let me know if I am... -
03 LB7 crank no start. No coms with ficm
Yeah that's prolly the wires I need to find! All good. Thanks for the input! -
03 LB7 crank no start. No coms with ficm
2004lb7 Sounds good thank you! Hopefully I can trace this back somewhat quick! Would love to get this ol girl back on the road! -
03 LB7 crank no start. No coms with ficm
2004lb7, so I have good grounds. No power at either pink wire on either connector to the ficm. So starting to look backwards. -
03 LB7 crank no start. No coms with ficm
No not that I saw. I do have a couple wire open under the steering wheel but they looked to have been added or tapped into for the auto starter. Maybe I need to go back to that set of wires first. Didn't think about that until you just said that darkness. Do you happen to have a diagram for the... -
03 LB7 crank no start. No coms with ficm
2004lb7, disregard that. I see that it has the 03. Thank you for that!! I will dig back into here now. -
03 LB7 crank no start. No coms with ficm
JoshH, im getting ready to got into the 100* heat today and start back probing the harness and see keyed power supplys. I have a few power leads from the ecu i was able to identify. 2004lb7, I've been trying to find an 03 lb7 ficm pinout but been unsuccessful. Are they the same as the lly you... -
03 LB7 crank no start. No coms with ficm
According to the tech 2 she's building good? pressure? Wouldn't let me send video, looks like it runs up to 15-16k Not sure what's needed to fire. Attach a video of the monitor. And no trying to pin the ficm and bale connectors is today's task. But limited on terminal schematics. Still... -
03 LB7 crank no start. No coms with ficm
Morning guys and gals. So I have recently acquired an 02 chevy 2500hd ccsb lb7. Been sitting since last Sep/Oct with crank/no start. Pulling the codes once I got fresh batteries and bcm and that hooked back up. Took out an aftermarket (relay style) auto starter and cobbled in aftermarket radio...