Q:

How do you install an ABS sensor replacement?

A:

Quick Answer

Install a new ABS sensor by removing the old sensor first. This requires lifting the car enough to remove the wheel, locating the old sensor and removing the speed control actuator. Once the old sensor is removed, pull the old sensor free and replace it with a new one.

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Full Answer

To replace the ABS sensor, gather the following tools:

  • 10mm socket with extensions and driver
  • Phillips head screwdriver
  • Vise grips
  • Floor jack
  • Jack stands
  • Brake cleaner
  • Lug nut wrench
  • Universal pry bar or flat-head screwdriver

Although many models may be different, the steps below are a basic guide to replacing the rear ABS sensor on many types of automobiles.

  1. Loosen the wheel
  2. Using the lug nut wrench, loosen the lug nuts, but do not remove them.

  3. Remove the wheel
  4. Jack up the vehicle and place it on the jack stands. Remove the wheel by taking off the lug nuts.

  5. Remove the speed control actuator cover
  6. Remove the screws holding the speed control actuator cover in place. Take off the cover.

  7. Take off the actuator
  8. Take off the speed control actuator by removing the bolts holding it in place. If necessary, loosen them just enough to move the actuator out of the way.

  9. Unplug the ABS sensor
  10. Unplug the ABS sensor. Remove the bolt holding it in place by using the socket, ratchet and extension. Pull out the sensor.

  11. Prepare for a new sensor
  12. Prepare the hole for the new sensor by cleaning it with a wire brush and brake cleaner. Use a paper towel to clean the inside of the hole, removing any metal bits or rust.

  13. Insert the new sensor
  14. Place the new sensor in the prepared hole and tighten it with the bolt removed in the above step.

  15. Route the sensor
  16. Route the sensor wires along the inside of the fender and attach them to the sensor grommets.

  17. Replace the speed actuator
  18. Replace the speed actuator and secure it using the screws. Replace the cover.

  19. Mount the tire
  20. Mount the tire. Replace the lug nuts, lower the car and tighten the wheel.

  21. Reprogram the ABS sensor
  22. Reprogram the ABS sensor according to the automobile manufacturer's directions.

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