Getting under a vehicle when it is jacked up is dangerous. If the vehicle slips off the jack, you
could be badly injured or killed. Never get under a vehicle when it is supported only by a jack.
1. Find a level place to raise the vehicle.
2. Set the parking brake firmly.
3. Put an automatic transmission shift lever in PARK or shift a manual transmission to FIRST
or REVERSE gear.
4. For 4-wheel drive vehicles, be sure the transfer case is in a drive gear, not neutral.
5. Turn off the engine.
6. Use jack stands to support the vehicle and wheel blocks.
Remove the Fuse
Disconnect the positive (red) battery terminal. Then locate and pull the ABS pump fuse located
in the power distribution center under the hood. You are looking for a fuse box with large amperage
fuses and some relays. Look along the fender well in the engine compartment relatively close to the
battery. It is a 60 amp fuse in most instances and should be clearly labeled "ABS" in the
large fuse box with other similarly oversize fuses used for other high power subsystems.
Unplug the ABS Module
Follow the steps below to avoid breaking the plastic retaining clips:
To disconnect the rectangular plug, insert a screwdriver under the red plastic locking clip.
The EBCM will of course be under your vehicle when doing this.
2) Pry the red locking clip into the down position as shown.
3) Firmly squeeze the side of the connector with your thumb as indicated while pulling at the same
4) The connector will release as shown. Some resistance is normal due to friction from the
rubber “o-ring” seal.
Remove the Module
Most people have reported successful removal of the ABS controller without disconnection
of the brake lines. However, you may have to disconnect all five (5) hydraulic lines for
success if the roads are salted and the Torx T20 bolts are rusted in place. In such
circumstance, it is best to remove the entire ABS assembly from the truck for easier
removal of the ABS controller by drilling out the bolt heads.
There is very little room to access these four bolts under the truck in such stubborn
cases. It is suggested that you disconnect the lines and remove the entire assembly. Take
the assembly to a workbench or drill press to drill/grind the heads off of the bolts. If
this sounds too ugly and disconnecting the five brake lines will ruin your day; you can
instead remove the three hex head bolts attaching the ABS pump/manifold to the vehicle
frame and CAREFULLY lower it. You must support the heavy pump assembly so you don't kink
the brake lines. Then you will have room to get a small grinder or Dremel Tool to grind
the heads off of the evil rusted bolts.
Be sure to order a bolt replacement Kit to replace rusted or stripped out Torx ABS
Removal of any of the brake lines will require bleeding of the brakes upon
re-installation. Your vehicle is probably overdue for a brake fluid flush anyways.
Brake fluid is hygroscopic (absorbs water) and the water molecules will congregate in the
lowest parts of the brake system eventually corroding critical brake components. Modern
vehicles should have their brake fluid flushed on a regular basis; so you are providing
your vehicle a much needed service in the process of this repair.
Seal the valve body
There are no loose parts such as washers or springs to lose and no fluids
will leak when the EBCM has been removed. The six protruding
valve bodies are permanently pressed into the aluminum housing
and will not move or fall apart while the EBCM is removed for
You should keep the part of the manifold that the ABS controller once covered as
clean as possible. Cover the area with plastic wrapping and tape or similar material.
Make a dirt-proof and waterproof "cap" out of duct tape. Avoid driving your
vehicle on dusty or wet roads if possible. Protect the plug ends of the cables from
moisture with electrical tape as well. For those who have electronic four-wheel-drives,
4WD may not function properly until the ABS controller is put back in place and powered
up. If you use duct tape, any sticky residue will have to be removed using carburetor