ABS Controllers Service

ABS Controllers Repair & Replacement

Professional ABS controller diagnostics and repair to restore your vehicle's braking safety system.

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Service Overview

ABS controllers are the components that instruct the hydraulic units to stop wheel spin in a vehicle's ABS system. The ABS system in your car is operated by a specifically designed computer unit and by braking sensors that are triggered every time the brakes are applied.

The computer unit is referred to as the ABS controller. In a split second, this controller detects the presence of wheel-spin from the sensors and automatically instructs the hydraulic system to stop it. This technology isn't 100 per cent reliable, so the computer can fail from time to time. If your wheels are spinning more than they should be, it could be a sign that your ABS controller needs replacing.

Frequently Asked Questions

Wheel speed sensors feed an ABS computer to monitor if your wheels are skidding during braking. When the brake pedal is depressed, brake fluid flows through the master cylinder to the ABS pump and out to the wheels.
The ABS actuator is a hydraulic device that communicates with the ECU to control the brakes under emergency situations. The actuator pulses the brake so that wheel doesn't skid. Depending on the situation, the ABS actuator might only pulse one brake, or it may pulse two, three, or all four brakes.
Non-ABS brakes lock up when hard, steady pressure is applied. If you stop fast enough to have your tires screech on the road, chances are your brakes will lock. In an ABS-equipped vehicle, you'll feel a pulsating in the brake pedal during hard stops, or if the vehicle loses traction.
  • Some wheel speed sensors
  • Brake calipers
  • A hydraulic motor
  • Some pressure release valves
  • A quick-thinking computer (or control module) which coordinates the whole process
If it finds it's lacking data, or a hydraulic pump or valve isn't responding, it illuminates the ABS warning light on the dash. ABS rely on a properly operating conventional brake system. If the ABS packs up, you should still have normal, unassisted braking, so it's safe to continue your journey.

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