After changing the hub and bearing assembly on a 2013 Mazda 3, the ABS warning light on the dash stayed lit. What might be wrong?

Asked by Jun 19, 2017 at 10:10 PM about the 2013 Mazda MAZDA3 i Sport

Question type: Maintenance & Repair

8 Answers

74,485

Did you hookup the ABS pigtail?

895

A few things to look at. The front bearing is a replacement bearing only, not a hub assembly. One possibility is the wrong bearing. The ABS compatible bearing has a magnetic ring in it that works with the sensor. If a non abs bearing was installed The sensor wont read wheel speed. Second is an improperly installed bearing. IF it was put in with the magnetic ring facing away from the sensor it will not read. If it was pressed in improperly It could have broken the magnet. If it was hammered in. The magnet is definitely broken. If the bearing is not seated all the way into the spindle The sensor wont read the magnet. Lastly If the sensor was not removed from the spindle It is now broken and needs to be replaced. If the sensor was stuck in the spindle and had to be pried out. There is a better than good chance that it is broken internally. Lots to check out. But I hope this helps.

1 of 1 people found this helpful.

The bearing and hub were purchased as a unit - bearing already installed in the hub. The only thing I had to change over from the old hub was the little unit in the back of the hub that the wire plugs into. This little unit is black and rectangular in shape - I assume this is the sensor?

895

That is the sensor. They are easily broken. Also if the hub was purchased used. It might be bad, or the non abs version.

285

X2 ^^^^^^ Have you checked all the wiring harnesses? How many miles have you driven the car since the new hub bearing was installed?

A broken wire is a possibility. It is a rear hub and bearing purchased new and the light came on immediately after installation.

There was no sensor with the new part. I removed it from the old hub and installed it in the new one. I can purchase a new sensor and try it.

895

That's probably the easiest way to solve this problem. The sensors are delicate and if it was stuck in the hub in any way there is a very good chance it's broken internally.

Your Answer

MAZDA3

Looking for a Used MAZDA3 in your area?

CarGurus has 2,577 nationwide MAZDA3 listings starting at $2,250.

Postal Code:

Mazda MAZDA3 Experts

  • #1
    Tom Demyan
    Reputation
    400
  • #2
    Richard Boettger
    Reputation
    240
  • #3
    Tracy Hooks
    Reputation
    150
View All

Related Models For Sale

Used Mazda MAZDA6
22 Great Deals out of 625 listings starting at $1,400
Used Honda Civic
307 Great Deals out of 4,113 listings starting at $1,494
Used Toyota Corolla
162 Great Deals out of 3,413 listings starting at $2,394
Used Honda Accord
62 Great Deals out of 1,114 listings starting at $748
Used Ford Focus
129 Great Deals out of 2,547 listings starting at $750
Used Toyota Camry
42 Great Deals out of 1,593 listings starting at $1,700
Used Hyundai Elantra
156 Great Deals out of 3,443 listings starting at $2,490
Used Mazda CX-5
43 Great Deals out of 2,051 listings starting at $8,995
Used Nissan Altima
70 Great Deals out of 1,275 listings starting at $2,750
Used Volkswagen Jetta
98 Great Deals out of 2,140 listings starting at $1,600
Used Mazda MAZDASPEED3
5 Great Deals out of 48 listings starting at $4,388
Used Subaru Impreza
46 Great Deals out of 891 listings starting at $2,490
Used Chevrolet Cruze
197 Great Deals out of 4,321 listings starting at $2,900
Used Mazda MAZDA5
22 Great Deals out of 450 listings starting at $1,995

Used Cars For Sale

2016 Mazda MAZDA3 i Sport For Sale
14 listings starting at $15,395
2015 Mazda MAZDA3 i Sport For Sale
8 Great Deals out of 33 listings starting at $11,499
2014 Mazda MAZDA3 i Sport For Sale
48 Great Deals out of 212 listings starting at $7,994

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.