NTK explains the performance of ABS sensors

The brand's specialist also helps mechanics with tips for the moment of

Component exchange

São Paulo, August 2024 – ABS sensors are key to
safety, preventing wheel lock-up and ensuring directional control
of the vehicle, that is, the ability to steer the vehicle in conditions of
Strong braking in various driving conditions, Especially on floors
Slippery, low-friction. They indicate the speed of each wheel of the
vehicle individually, An electronic module will assess the need for
ABS System Performance. Prioritizing the well-being of drivers, The NAT,
brand of Niterra, Japanese multinational company that also owns the NGK brand and is
Specialist in components for ignition systems, explains how the
performance of these sensors at different times and how they improve the
Driver drivability.
1. Actuation with the brake pedal on: if the brake system is
triggered and a possible tendency to wheel lock is detected, a
pressure exerted by the brake fluid in the cylinder will be released to prevent the
Locking. As soon as the speed returns to normal, Pressure is resumed,
resuming wheel braking, This process is repeated several times for
minute and causing a slight shake in the brake pedal, that is normal and
indicates the actuation of the ABS system.
2. Actuation without the brake pedal depressed: if the brake pedal is not
Fired, The difference in speed may indicate the performance of other systems,
as a stability control, traction and ramp descent, These systems
work together with the ABS system, if it is necessary to brake
a specific wheel, The system will apply the brake without the driver's action.
Reduced stretch.
Variations in wheel speed are normal in corners, where the wheels
internals rotate slower than externals due to the radius of the curve. Tires
New and used can also cause differences in wheel speed by

Its variation in height, which does not normally trigger the anomaly light. If
there are problems with the ABS sensor signal, The warning light will remain on in the
dashboard, and other systems related to wheel speed will also be able to
Turn on your warning lights. In this situation, the vehicle must not be used and
Requires immediate repair.
Troubleshooting ABS sensors
ABS sensors can be damaged by water ingress, lack of
Sensor Power, Accident damage, improper car maintenance,
Damage to the sprocket or even from maintenance on the wheel bearings.
Some vehicles have magnetized wheel bearings that work in
Set with wheel speed sensors. When this happens, The
vehicle must be analyzed and tested by a professional mechanic, that can
assist in detecting problems.
&;Quot;In case the component is actually damaged, its replacement is
Relatively simple. First of all, It is necessary to identify which
sensor presents the fault and its real cause and, soon after, See the
Correct sensor application. Furthermore, it is necessary to clean the
system before applying the sensor and using the tightening torque
recommended. After replacement, A road test must be carried out,
with diagnostic equipment attached, checking if the speed of the
wheel is being registered by the system. On some specific vehicles, It's
A sensor presentation procedure required, carried out with
equipamento de scanner.&;Quot;, comments Hiromori Mori assistance consultant
Technique of Niterra do Brasil.
NTK ABS sensors are manufactured to meet the requirements of the
replacement, with a qualified team dedicated to satisfying the
specific needs of this sector. Furthermore, The brand also offers
A range of automotive sensors, including fuel level sensors,
temperature, rotation, speed, TPS (butterfly position), MAP (pressure
Absolute) and oil pressure switches.