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Delphi Technologies Expert standing underneath a vehicle, inspecting the wheel.
1 min read

How to replace an ABS sensor

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Resource Highlights

Exposed to heat, dirt and moisture, ABS sensors can often need replacing. Learn how here.

How do I remove the existing ABS sensor? 

First, remove the wheel. Then, remove the clip on the arch liner to give access to the connector on the ABS sensor. Now, disconnect the faulty ABS sensor followed by the mounting rubbers. Next, pivot the hub so it’s easier to get to the 10mm securing bolt holding the ABS sensor in place. Remove the bolt, free the sensor from its mounting and remove it.  

Do I need to do a visual check of the new part? 

We always recommend checking the new part against the old one to make sure that it matches. It’s quick to do and ensures you’re fitting a like-for-like new part. To do this, hold the old and new ABS sensors next to each other. Now check that their heads are identical, also that the electrical connectors have the same pins and locating point.   

In what order do I fit the new component? 

Start by fitting the electrical connector. Next, secure the cable to the chassis using the clips. You now need to clean the hub for a flush fit. Once you’ve done this, fit the ABS sensor in place. Now, replace the 10mm bolt before resecuring the arch liner. Finally, refit the wheel. 

Have I finished once I’ve fitted the new ABS sensor? 

No, one last job to do. Lower the vehicle and connect the diagnostic tool. Clear any fault codes and confirm wheel speed using the live data. 

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