Join Date: Oct 2010
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Sounds like the ABS system on your truck is engaging and/or malfunctioning.
Try pulling the large, green 40 amp fuse (#6) in the PDC and and see if your braking "problem" corrects itself.
NOTE: Pulling the fuse WILL turn on the ABS/brake light waring on the dash, but it will go off again after you put the fuse back in.
ALL that you are trying to do is to shut off the ABS pump module to see if your brake "problem" then goes away. If so, there is a problem with the ABS sensors, module or pump and you will have to dig deeper OR you can simply keep the ABS system (OBVIOUSLY AT YOUR OWN RISK!!!) disconnected. ALL that the ABS systems do on these trucks is to keep the wheels from locking up and the truck skidding while using the brakes. Some people actually prefer the way their truck stops without the ABS system operating. You can mimic the what the ABS does by rapidly pumping your brake pedal during an emergency stopping situation, which is what drivers used to have to do before the wholesale impleamntaiton of ABS in all vehicles.
WARNING and DISCLAIMER: if you do in fact disconnect the ABS system, you do so at your own risk and possible culpability!!!
For example, if you ever cause an accident and the investigators find that the system has been disconnected you will be rapidly sued into financial oblivion!!
2005 SLT 4x4 QC LB G56, GDP horn, HDCAI, SBC ConOFE,