ABS Sensor for auto

Electric system auto parts: ABS Sensor

Many cars have ABS (antilock braking system) that prevents locking of wheels when braking. Due to this system even when full braking on the slippery road, the car remains controllable. ABS system is especially useful on wet roads. Problems can occur when braking on a soft or loose ground, because in such cases ABS reduces braking efficiency. Therefore there is possibility to disable ABS. A special ABS sensor is required for ABS system operating. It records the rotation of wheels. These data are necessary for the timely prevention of wheel lock.

ABS sensor is a wheel speed sensor that works with high accuracy. In older vehicles primarily are used passive inductive sensors. Modern cars are equipped with active sensors. In many cars on the wheel hub is mounted a simple gear ring. The sensor is placed above its end face. ABS sensor is usually mounted on the rear axle. When buying, make sure that you have chosen the right model. In the course of time a lot of manufacturers have many times improved their ABS.

For a layman it is quite difficult to determine whether the ABS sensor is defective. The reason that ABS is not working properly can be any other component. Workers of service station will quickly determine whether it is necessary to install a new sensor ABS. It is not difficult to install the sensor’s toothed disk. In our online shop you will find many car parts of the highest quality, such as starter, brake disks, electric window lifters, fenders, bearings and shock absorbers. It is very easy to order goods in the Internet and it is the cheapest variant. Therefore, you should visit our online shop.

Malfunctions of ABS (ESP) sensors

  • sensors work incorrectly;
  • contacts are closed or oxidized;
  • sensors were damaged as a result of mechanical impact;
  • wiring is broken.

Signs of ABS (ESP) sensors malfunctions

  • wheels slip when the car is started sharply, or the car is skidding at emergency braking;
  • ABS and ESP lights illuminate on dashboard;
  • increased fuel consumption;
  • engine has lost power;
  • increased braking path on slippery roads.

Causes of ABS (ESP) sensors malfunctions

  • components are connected incorrectly;
  • microcircuit of sensors got damaged;
  • faulty fuses;
  • car regularly starts harshly;
  • braking system is broken;
  • car did emergency braking at high speed.

Diagnostics

To check, if ABS (ESP) sensors work correctly, an oscilloscope and a multimeter are required. Resistance between sensors contacts must be within 1-1,5 kOm. If the reading exceeds admissible values, you are required to check fuses and wiring. Software is also requires thorough diagnostics, because electronic malfunctions can cause mechanical faults.

For checking you can replace sensors with ones which are 100% correct. If the tested sensors work with faults, than you should also check systems connected with the sensors. If non-original components are used, than insufficient contacts connection can cause malfunctions.

While doing output test, check proper functionality of braking mechanisms. To define if TCS (traction control system) and ABS (anti-lock braking system) systems work efficiently, you will need a specialized bench.

Repair and replacement of ABS (ESP) sensors

Before repairing, you should find out the source of damages. For this, complete examination is needed. In case if microcircuits of components are damaged, they can be restored. Though, such services are seldom offered even at big service stations.

If a vehicle is suddenly stopped at a speed higher than 100 km/h, than sensors settings can fail because of heavy overload. In such cases, the parts should be adjusted and checked. It is recommended to replace damaged parts exclusively at service stations.

Popular ABS Sensor manufacturers
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  • Inner diameter [mm]: 77,75
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  • Outer diameter [mm]: 81,6
  • Supplementary Article/Info 2: with integrated magnetic sensor ring
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  • Length [mm]: 66,0
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  • Manufacturer Restriction: ABS-Ring magnetisch
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  • Inner diameter [mm]: 77,5
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  • Sensor Type: Passive sensor
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  • Inner diameter [mm]: 58,7
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  • Supplementary Article/Info 2: with integrated magnetic sensor ring
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  • Fitting Position: Rear Axle left and right
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  • Length [mm]: 32
  • Outer diameter [mm]: 18,8
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In stock Details
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