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Thread: PCM-pinout for e-fans

  1. #1
    Potential Tuner
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    May 2024
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    PCM-pinout for e-fans

    I have a 2007 trailblazer LS straight 6 motor 4x4 it is not a as or does not have a last motor. Just need diagrams for pcm converting to e-fans. Everyone is doing trucks and as trailblazers which have different pcms. Can anyone please help me. Thankyou. First time being on here.

  2. #2
    Senior Tuner TheMechanic's Avatar
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    Jan 2014
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    Given the limited info you provided. I'm going to shotgun this.

    2007 TBSS LS1 & SPAL.hpt
    E38 Pin Install.pdf
    E40 Pin Install.pdf
    E67 Pin Install.pdf
    EFAN Troubleshooting.pdf

  3. #3
    Senior Tuner
    Join Date
    Nov 2006
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    2,840
    The 07 6 cylinder trailblazer uses a computer (P12) that from our understanding never ran electric fans. There is no pin out to run electric fans.

    We sell a kit for 07 6 cylinder trailblazers but it uses a temperature sensor/block that splices into a radiator hose and a A/C trigger to run.
    Tuner at PCMofnc.com
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