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Thread: HELP Abs light on after speedo recal

  1. #1
    Junior Member
    Join Date
    Mar 2007

    Default HELP Abs light on after speedo recal

    I Have a 05 lly 4x4
    I just lifted it and put on 37" toyo's
    I used the recal in Efi Live got the speeedo right but now it pops the abs light on.. What gives?

    Been searching forums for the past 2 hours
    1972 Chevy Blazer, Twin Turbo Duramax 6.6
    69 Maro TT 427 LSX, Wayne due Vett frnt sub,
    Lateral Dynamics 3 link rear, D 60,
    T56, 18X10' 18X12 Boze Forged Speedsters,
    13" wilwood 6 pot fronts 13" wilwood 4 pot rears,
    (all Still under construction)

  2. #2
    Lifetime Member ChipsByAl's Avatar
    Join Date
    Feb 2006


    It is likely that the front tires are now out of calibration. Before the rear tires got corrected, the ratio from front to rear was OK with the ABS module. Now the different speed inputs are a problem. The ABS module "EBCM" needs a tire size calibration change. Do you have a buddy at a GM dealer?
    "Trash that carb and get Injected!"

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