When the pole tip defect, rupture, should be replaced.

Detecting wheel speed sensor output waveform of the wheel speed sensor signal voltage is generally read from the oscilloscope. The body lift, the wheels leave the ground, the oscilloscope input termination to the ABS electronic control system under test (sensors) corresponding to the terminal, start the engine low-speed rotation of the wheel (wheel Yi-integrated sensor can be turned by hand wheel) waveforms under normal circumstances should be sine wave, for the sensor failure occurs when abnormal waveform (electronic control system intact) when.

Disassembly and adjustment of the sensor head due to different models of the sensors and the installation location, its disassembly and adjustment method is also different. Ford family car has installed tanks Corfu (Teves) ABS, now with this system, for example, outlining its front wheel speed sensor disassembly and adjustment method 1.

a. The ignition switch is turned off, lifting car, remove the front wheel fixing nut and remove the front wheel is adjusted.

b. Loosen the sensor fixing screws on the stand, disc brakes fender hole by removing the sensor head.

c. Clear pickup pole surface dirt and adsorption of ferromagnetic particles.

d. Adjusting the thickness of approximately 1.3mm pasted cardboard pole sensor surface.

e. Loosen the screw with a bushing and turn bushing to provide a new locking concave fixing screws.

Fender hole through the inner liner sensor head mounted on the frame people, and ensuring that adjustment does not fall off the cardboard.

Tighten the bush fixing screws and check the sensor wires and connectors to make a good connection.

Moving the sensor head to the sensor ring to the top, until the adjustment ring in contact with the board and top up (not too tight), then tighten the screws, about to head positioning sensor. Installed front, put down car, start the engine, observe the ABS warning light is normal. If not normal should be re-adjusted.