A witness that goes off is not necessarily an excellent omen. You may think that it is only a malfunction related to sensors . However, it is essential to pay attention to it. What is the role of an ABS? Why is the light on? what are the solutions? We will try to elucidate all these questions, so that you can drive your Toyota Previa in complete safety.
What is ABS on a Toyota Previa
ABS means Anti Blocking System . It is a device which makes it possible to improve braking, in particular for sustained braking. Before the creation of ABS, the brake pedal was directly connected to the pads. When you depressed the pedal, the pads tightened on the discs. The disadvantage with this device is that there can be a chance of skating. By means of the probes, the ABS calculated braking. Instead of holding the discs, the pressure will vary several times in a very short time, thus avoiding a blocking total tires of the Toyota Previa. No slippage, and braking is more efficient.
Toyota Previa: why the ABS warning light is on
If the ABS warning light comes on, it is sure that this Toyota Previa has a malfunction. As with all other indicator lights, it is rather ordinary that it concerns only a contact malfunction. However, you better be sure.
False contact
Reassemble the lines of the ABS sensors of this Toyota Previa and read the electrical intensity with a multimeter . If ever one of them does not hold the same value as the other three, there is an electrical problem. Follow the wiring, if you find a bad connection you will have to fix it. When a wire is in bad condition, you are going to have to replace it.
A sensor problem
This is indeed a rather recurring malfunction for a Toyota Previa. It is possible that the detector emits an incorrect message. In this situation, it will suffice to replace the sensor in question. You will be able to test the probes using a oscilloscope .
A problem with the hydraulic block
The ABS of this Toyota Previa works by using a system hydraulic , which will make it possible to manage the pressure of the brake pads. In the event that this system is damaged, replacement of the ABS unit is usually necessary. If it's a block malfunction, it's usually noticeable when braking.
Conclusion
The ABS warning light that comes on can have quite different causes. Whether it's a sensor malfunction, an electrical fault. If the ABS unit is not functional, you will probably have to change it. And this operation is relatively expensive, for a Toyota Previa or for each type of vehicle. It is essential not to neglect an ABS indicator, for obvious safety reasons. You can write a comment if this specific ABS witness article has served you well. See you soon!