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Thread: What is this? What does it do?

  1. #1
    Join Date
    Apr 2009
    Posts
    115

    What is this? What does it do?

    It was under the dash of an '06 Silverado HD 2500.

  2. #2
    Join Date
    May 2008
    Location
    wichita falls, tx
    Posts
    613
    that is a BCM (body control module) it controls everything exept the motor and transmission ie. locks windows lights ect.

    Junkyard 5.3 milled heads 200 shot, built 4l80e with circle D 4000 multi disc converter
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  3. #3
    Join Date
    Apr 2009
    Posts
    115
    Thank you for that much. Just to clarify, do you, or anyone, know if it has anything to do with the ABS? And if so, what?

  4. #4
    Join Date
    Mar 2009
    Location
    Romeoville, IL
    Posts
    90
    yes it does, it has inputs/outputs for the steering wheel position sensor that run to the abs unit. If you ditch the bcm you will lose abs
    1993 GMC Yukon GT, 6.0 vortec, head work, no cats, cai, HpTuned by me, jasper lvl2 4l65e, nbs brake conversion

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