What is a pad wear sensor?

The brake pad wear sensor accurately informs the driver about the current wear of the vehicle’s brake pad. Mounted in the brake pad, one sensor for the front axle and one sensor for the rear can be installed to determine and indicate when the driver needs to perform a replacement.

What are the sensors on the brake pads?

Known as two-stage wear sensors, these are monitored by the ABS module and instrument cluster module on some vehicles. The system wear sensors use information such as wheel speed, mileage, brake pressure, brake disc temperature and brake operating time to determine the life remaining in the pads.

Where does the wear indicator go on the front brake pads?

The wear indicator normally and on your vehicle goes on at the inner position on the front brakes. And also you are correct on the rear pads, the wear indicator goes on the outer pad.

What does a position sensor on a car do?

Position sensor: A sensor that measures the position of the brake mechanics and indicates to the driver when the desired position has been achieved. Of the alternatives above the first three are simple and cheap since their lifetime coincides with the service life of the brake pad.

How are brake pads mounted on a car?

Pads B are mounted on carriers G. These are pushed against the rotor A by the piston D which is pushed by the brake fluid E. This induces wear on the brake pads. The rotor A also experiences some wear, but to a lesser extent than the brake pads.

Do all brake pads have wear indicators?

Conveniently, most brake pads have a wear indicator, which warns you when the pads have worn down. The wear indicator is a small piece of metal embedded in the brake pad that makes contact with the rotor when the pad wears down, resulting in a squealing noise as you apply the brakes.

How do I Reset my brake sensor?

Press the ODO reset button a few times until you see the symbol for front or rear brakes. Depending on which sensor you replaced and would like to reset. When the symbol for the desired brakes is displayed on the screen, press and hold the ODO reset until you see the word RESET below the symbol.

How do brake wear sensors work?

Brake wear sensors are devices that monitor the thickness of the brakes, and alert the driver when the brake material is almost gone. The sensor is inserted within the brake material at a predetermined depth. The depth is set so that when the sensor is activated, there is approximately 100 miles of brake material left.

How does the brake pad sensor work?

Brake pad sensors generally consists of a rubber enclosed wire loop. The loop is installed in a predetermined location on the pad. Once the pad wears down past this point, the wire becomes frayed and/or cut, breaking the circuit which your ECU ( engine computer ) will detect. This is when a brake pad warning shows up on your dash.