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Thread: 95 obs swap few final Q's

  1. #1
    Join Date
    Jan 2007
    Location
    Lewisville,TX
    Posts
    94

    95 obs swap few final Q's

    Ok so after amost a year i got it running and almost ready to try and drive.
    My few final q's are concerning the tcc switch, there is a six wire plug coming from the brake switch under dash, an orange is constant and a white is 0v/12v brake pressed which is opposite of what i need. the others are all dead. what should i run to pcm?


    The other is what does this green wire(B) of the drivers side trans go to? in the pic i have all the others listed and connected except the green. My brake and reverse lights work, my prndl on dash does not. that is what im needing to figure out.

    hope this makes sence, thanks.
    95 Chevy, bagged and bodied, LSx swap/detail in progress

  2. #2
    Join Date
    Jan 2007
    Location
    Lewisville,TX
    Posts
    94
    Ok I solved all this. For the PNP switch I ran B pin to new PCM, wire A isn't there form factory.
    As far as the TCC wire I'm just an idiot. The purple wire won't get power unless the ING is on. Dur, but I can't be the first to do that!
    Still no PRNDl light tho.
    95 Chevy, bagged and bodied, LSx swap/detail in progress

  3. #3
    Join Date
    Mar 2013
    Location
    Long Beach California
    Posts
    637
    i found out where the wires were run for the original harness by looking at the diagrams. idk how running the green wire to the pcm works for you as it seems they all go thru a fuse or relay but you have a custom harness so it may be different than mine as im using the fuse block that came with the escalade harness. but heres my revised diagram for the pinouts for the 03 harness. may or may not help you but here you go


  4. #4
    Join Date
    Mar 2013
    Location
    Long Beach California
    Posts
    637
    ok so idk if you got it figured out. but like i said i was gonna confirm the wires and i did. all i had to change was the light green wire going to the reverse lights. everything else stays the same. BUT i am using the original harness, pcm, and fuse box. so our setups are a lil different. at this point im not sure if my gear indicator light will light up. i havnt checked that part out. i will try and confirm that in the next few days. but i just wanted to say that the round connector matched up perfect (no re-pinning), same for the 4 wire connector pnp, and same for 6 wire pnp with the exception of the reverse lights. like i said, just take the new gray wire and hook it to the old light green going to the lights and you should be good on that part. hope that helps. let me know

  5. #5
    Join Date
    Mar 2013
    Location
    Long Beach California
    Posts
    637
    oh and btw, i gave the link to my thread to my pops to read through my conversion process and he told me he really liked your truck. as do i. props man. really wish i could lay frame.

  6. #6
    Join Date
    Jan 2007
    Location
    Lewisville,TX
    Posts
    94
    Thanks man! Just remember to run a ls1 oil pan for laying frame. I ran the hotrod pan, per advise on here and it's too low.
    95 Chevy, bagged and bodied, LSx swap/detail in progress

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