Rear and front brake pad wear sensor for my car

Replace a Spare part Brake pad wear sensor – a defective one or if the limit of use has been already reached. Find out useful information about Brake pad wear sensor

A brake pad wear sensor is a mechanical or electronic device which informs the driver about necessity to check residual thickness of brake pads or replace them.

4 tips on brake pad wear sensor operation

1. Check the wear sensor every time when you perform brake pads replacement.
2. Mounting the sensor, make sure that its cable is reliably secured.
3. Regularly clean connectors from soiling, and terminals – from corrosion.
4. After installation of a new component, reset the readings from the previous sensor in the on-board computer, according to the procedure given by the car manufacturer.

Defects of the brake pad wear sensor, their causes and signs

1. Breakage of sensor electric wiring. Usually it occurs as a result of wires abrasion or improper installation, driving on poor-quality roads, hitting by foreign objects during moving. It may be indicated by absence of signal in case of worn-out brake pads if the contacts are normally opened, or false activation of the component if it activates upon the circuit opening.
2. Terminals oxidation. Sensor terminals may oxidize under the influence of moisture and various pollutants. This may be manifested as improper activation of the signal, for example, as periodical turning on and off of an indicator lamp.
3. Connectors cracking. Temperature changes, influence of chemicals, unqualified installation may become the cause of sensor connectors cracking. The signs of their unreliable fastening are the same, as for wiring breakage or sensor terminals oxidation.

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