The ABS Pump provides the necessary pressure to keep your car's wheels from locking up. The ABS controller sends orders to the ABS pump in your vehicle. This, in turn, gets speed-related data from each wheel's sensor rings. The controller instructs the ABS hydraulic unit to close the solenoid valve when the sensor ring detects that one of your wheels is spinning at a different pace than the others. This minimises the braking force applied to the affected wheel, preventing it from locking for more than a millisecond. Your car's MOT might be failed due to a defective ABS hydraulic unit.It's possible that your ABS hydraulic unit isn't operating properly if your wheels are locking and a warning light appears on the dashboard.

What is an ABS Pump, exactly?

ABS stands for Anti-lock Braking System. Pump and valves for anti-lock brakes. Anti-lock brakes work on a basic principle. A skidding wheel has less traction than a non-skidding wheel because the tyre contact patch is sliding relative to the road.

ABS pump failure symptoms

Signs of a Failing or Damaged ABS Control Module. A vehicle's anti-lock braking system is an extra safety feature that may be found on many current automobiles. Under high braking situations, when the ABS system is not working, traction loss, skidding, and hydroplaning are significantly more likely to occur.

How Does the ABS System Work?

The Anti-Lock Braking System, also known as the Anti-Skid Braking System, is a type of sophisticated braking technology that is put on vehicles to prevent the wheels from locking up (slowing down) and skidding uncontrolled. It accomplishes this by pulsing the braking power given to the wheels, similar to threshold braking, a method often employed in motor racing in which the goal is to regulate brake pedal pressure and impart maximum braking force just before the wheels begin to slide.
On dry and slick conditions, the ABS system enhances vehicle control and reduces stopping distance; but, on loose gravel and snow-covered roads, where grip between the tyres and the road surface is restricted, it can dramatically increase stopping distance. By electronically regulating the front-to-rear brake bias, ESP (Electronic Stability Control) works in tandem with ABS to maintain tractive contact with the road surface.
Electronic Brakeforce Distribution (EBD), Traction Control System (TCS), Electronic Stability Control (ESC), and Dynamic Traction Control are all terms used to describe the ESP system, depending on its capabilities and implementation (DTC).

An ABS System's Components

Wheel speed sensors, hydraulic valves, a pump, and an ABS controller, often known as an ABS Module or ABS ECU, are the four major components of an ABS system:

  • Wheel Speed Sensors
  • Hydraulic Valves are a type of valve.
  • ABS Pump
  • ECU (Electronic Control Unit) / ABS Module (Electronic Control Unit) / ABS Controller (Electronic Control Unit)
  • ABS Ring
  • ABS Sensors

Wheel Speed Sensors

The wheel speed sensor is used to assess whether the wheel is accelerating or decelerating. The ABS ring spins with the wheel and differential, creating a magnetic field around the wheel speed sensor, which generates the voltage in the sensor.

ABS Hydraulic Valves

A hydraulic valve is located in each brake line and is controlled by the ABS module. The valve may have three settings in various installations. In position one, the valve is open, allowing any pressure from the brake master cylinder to flow directly to the brake. The valve is in the second position, which blocks the brake line and isolates the brake from the master cylinder. If the motorist presses harder on the brake pedal, the pressure will rise even more. The third position. Thevalve partly opens, releasing some of the braking pressure. The majority of valve system problems are caused by clogged valves. The system will fail to modulate the valves and manage the pressure provided to the brakes if a blocked inoperable valve is unable to open, close, or change position.

ABS Pump Unit

After the hydraulic valves have released pressure, the pump in the ABS unit is utilised to return it to the hydraulic brakes. The ABS ECU Module processes signals from the wheel speed sensors, and if a wheel slip is detected, the module will command the valve to be released to prevent the wheel slide. The pump is used to restore pressure to the braking system once the valve is released and pressure is lost. The ABS controller will control and modify the pumps' state in order to control and give the proper amount of pressure while also reducing slippage.

ABS ECU (Electronic Control Unit) / ABS Module / ABS Controller

The ABS controller, also known as an ABS ECU, takes input signals from all wheel speed sensors and can interpret the information to determine if any of the wheels are slipping. The controller will restrict the braking force (EBD) and transmit the signal to activate the hydraulic brake valves on and off if a wheel spin is detected and a wheel loses traction.

Is driving with the ABS light on dangerous?

Yes, your automobile is unsafe to drive; but, if the light continues to illuminate, you should have us inspect it. It's also worth noting that if both the ABS and Brake System warning lights illuminate at the same time while driving, you must come to a complete stop as soon as possible.

Free Collection and Delivery for ABS Pump Replacement

Having to bring your vehicle to the garage is sometimes the toughest part of getting it fixed. As a result, we are pleased to provide a free collection and delivery service to our clients. If you schedule a collection, we will pick up your vehicle from your home or place of business, drive it to our facility, do any required work (after consulting with you), and return it to you at the end of the day.
For a modest cost, we can tow, jump start, or repair your car if it is having troubles or has broken down. If we are unable to start your car, we may arrange for a local recovery company to collect it at a very reasonable cost.
Don't want to ruin your day off?
You don't have enough time to get your vehicle serviced or repaired?
Do you have trouble getting to and from your garage?
With our Free Collection and Delivery Service, we can collect from either your place of work or your home location, and we feel we provide a valued product at Car Service and Repair. Please contact us if you are unclear whether the address from which you wish to have your car collected is within our service area.
Car Service and Repair operates a fleet of pool cars with a dedicated driver, thus wherever we collect from, we must be allowed to leave one of our pool vehicles either in your business car park / parking spot, or if in a residential area, at your house or on the road with a permission if necessary. We'd appreciate it if you could keep this in mind when making a booking for our free collection and delivery service.