Replace ABS Wheel Speed Sensor Mazda 3 2013 to 2018
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Is the ABS warning light displayed on your Mazda 3 dashboard? Learn how to fix the problem by replacing your vehicle’s ABS wheel speed sensor.
At a Glance
- Vehicle: 2013 to 2018 Mazda 3
- Location: On the steering knuckle behind the rotor, one per wheel
- Tools: 10mm socket, pick tool, pliers, jack and jack stands
- Torque: Sensor bolt 4.0 to 6.0 Nm (36 to 53 in-lb)
- Time: About 30 to 45 minutes
- Tip: Read the ABS codes first to confirm which wheel
This guide is a step-by-step procedure for replacing the wheel speed sensor on a 2013 to 2018 Mazda 3. Mazda ABS wheel speed sensors are installed on the steering knuckle and are located at each wheel behind the rotors.
What you will need
- 10mm socket wrench
- Pick tool
- Mazda 3 ABS Wheel speed sensor
Procedure
- Loosen the lug nuts on the wheel and jack up the vehicle. Support the vehicle with jack stands and remove the wheel.
- Locate the wheel speed sensor behind the rotor, remove the 10mm bolt, and pull the wheel speed sensor out using a plier.
- Follow the cable and release the clips holding the cable.
- Remove the push pins on the fender liner and pull the fender liner out to have access to the wheel speed sensor connector.
- Push on the connector clip and pull it out to remove it.
- Install the new wheel speed sensor and install the 10mm bolt on the sensor.
- Line up the cable back to the clips and lock the cables in.
- Push the connector into the connection port.
- Put the fender liner back in its original position and reinstall the push clips.
- Reinstall the wheel, lower the car, and torque the lug nuts to spec. Test drive to confirm the ABS light stays off.
ABS Light On
If the ABS light is on after replacing your vehicle’s ABS wheel speed sensor, you can use the YOUCANIC UCAN-II Pro to clear the stored codes/reset the ABS light. The scanner can also read and clear fault codes in the engine and other control modules on supported vehicles.
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Torque Specification
- ABS wheel speed sensor bolt: 4.0 to 6.0 Nm (36 to 53 in-lb)
Check these troubleshooting and repair guides for more help on your Mazda 3.
Frequently Asked Questions
Where is the ABS sensor on a Mazda 3?
Each wheel has one, mounted on the steering knuckle or hub carrier behind the brake rotor and held by a 10mm bolt.
Can a bad ABS sensor affect cruise control on a Mazda 3?
Yes. A failed wheel speed sensor can disable cruise control along with the ABS and traction control.
What is the torque for the Mazda 3 ABS sensor bolt?
4.0 to 6.0 Nm (36 to 53 in-lb). It is a small bolt, so do not overtighten it.
How do I know which ABS sensor is bad?
Read the ABS codes, which usually name the wheel, or compare the live wheel speed readings while the car moves.
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