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2004 gto ls1 wiring diagram

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Old 01-24-2021, 08:27 PM
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Default 2004 gto ls1 wiring diagram

So I have a 2004 gto ls1 and t56 ready for swapping into a f100. I cannot for the life of me find complete swap diagrams for the wiring. I've got the pinouts from lt1swap.com but it doesn't give info on asm c206,c101,bcm, and pim. I want a basic setup. And want to delete as much as possible. I.e. no a/c, no traction control, etc. Does anybody have a diagram or info?




Old 01-24-2021, 09:39 PM
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Lt1swap has all the info you need. I recently did a GTO harness for my current build. Already stripped the harness and fired it up before pulling it all back out to paint.
Old 01-25-2021, 07:55 AM
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I went through the LT1swap.com website. I'm not worried about he blue and green PCM pinouts. Those are pretty easy. I just cant enough info on the ASM, C206, C101 and BCM. for instance, the low speed fan is run through the BCM. Does that mean I have to keep that whole thing just for that?
Old 01-25-2021, 09:23 AM
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No you do not need your BCM. You can repin blue #42 for low speed fan control if you want to use it. It will need to be setup in HP tuners as well. C206 is mostly power, keyed power and outputs from PCM. If you identified the wires at the PCM then follow them and cut them off the C206 one at a time and label them. I believe the only one not identified is for reverse light switch power.
Old 01-25-2021, 09:27 AM
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Here's one that should help.
Old 01-25-2021, 11:16 AM
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Originally Posted by 1964SS
Here's one that should help.
that helps! Thanks. What about the accelerator servo module (asm) big black plug? Im hoping just cut that off.
Old 01-26-2021, 05:24 PM
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Here's the engine in the f100. BTW. I'm thinking about moving my thread from ford-trucks.com to this site. Just not getting much feedback and help I could use for my first ls1 swap.
Old 01-26-2021, 07:48 PM
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So I have a build thread on another site. I'm thinking about moving it to this website since they can't help much on a ls1 swap. I have the 1965 f100 that I have a 2004 gto ls1 with t56 swap. Here's a picture of the truck. Body is really nice, I'm just redoing everything under the skin.



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