OBD INFO -What Does ABS Air Bleeding Mean

ABS Air Bleeding

What Does ABS Air Bleeding Mean? When the ABS contains air, the ABS Bleeding Function Must Be Used To Restore ABS Brake Sensitivity. If the ABS Computer, ABS Pump, Brake Master Cylinder, Brake Cylinder, Brake Line, or Brake Fluid are replaced, the ABS Bleeding Function must be used to flush the ABS.

Vehicles nowadays come with a variety of technologies designed to keep the driver safe. One of these is the anti-lock brake system (ABS). Your brake pedal will become soft as time passes, or in any event. The reason for this is that we must first clear the airway before moving on to the fluid. As a result, you may be in risk because the car will take longer to come to a complete stop. Some methods of bleeding the ABS module necessitate the use of specialized equipment, such as a scan tool.

How Can I Tell Whether My Abs Needs To Be Bled?

Every time you open the braking system for repairs or other reasons, air enters it. Furthermore, some air within the system alters the effect of the brake pedal, making it seem soft like a sponge when pressed. When you apply the brakes, the hydraulic fluid transfers the pressure to the other braking components. When there is air in the system, however, pressing on the pedal first compresses the air, making the pedal seem squashy.

When you push the brake pedal to slow down your car in traffic, it can seem unusually low and sluggish. It’s a warning indicator that there are air bubbles in the brakes. These undesired bubbles must be removed by bleeding brakes with ABS.


How to Bleed the ABS Without the OBD Scan Tools?

Step-by-step instructions on how to bleed an abs module without using a scanner. Bleeding the ABS module is a simple procedure. However, because each wheel must be bled independently, this may take some time. So, if you want to learn how to bleed an abs module without using a scan tool, stay reading and follow the procedures below.


  • First, park the car on a flat level in an area with sufficient lighting and ventilation. Then, jack up the car and remove the four wheels to easily access the bleeders. After that, drain the brake fluid from the reservoir and ensure it is empty.


  • To access the bleeding port in the brake caliper, remove the dust cap. Use the proper wrench and try to loosen the bleeding port rather than totally removing it. Using a tube, connect the bleeding port to the bleeder. Reserve the brake fluid with a bottle that comes out throughout the bleeding process.


  • Take someone with you to assist you in consistently pumping the brake. It will force the braking fluid and air inside the circuit to the bleeder. The master cylinder must be checked on a regular basis. It can’t possibly be empty. When it reaches the middle, you must add oil. Otherwise, more air bubbles will form.


  • Then, tighten the bleeding bolt and have your assistant continue pressing the brake pedal until the press feels firm and hard. Then repeat the technique on each wheel, beginning with the right rear wheel and working your way to the left.


  • When you’re finished, double-check that all of the parts are in place and that there are no leaks in the system. Request that your helper continuously press the pedal so that you can determine whether or not there is a leak. The master cylinder should then be refilled with new fluid. Attach the wheels and go for a test drive to ensure your abs are operating properly.

This is the method for bleeding the ABS module without the need of a scan tool. It’s simple, but time-consuming.

Is A Scan Tool Necessary To Bleed The ABS Module?

If your ABS module lacks a bleeder, you must use a scan tool to do appropriate bleeding rather than manually starting the abs pump. Using Launch X431 Scanner  will make the job much easier and save you a lot of time.


Thank you very much! This simple tutorial is humbly researched and compiled by Erwin Salarda.


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