An indicator that lights up is not necessarily a good omen. One can think that it is simply a problem coming from sensors . However, it is important to pay attention to it. What is the role of ABS? For what reasons does the witness start? what are the solutions? We will answer all these questions, so you can get behind the wheel of your Toyota 4runner safely.warning-abs-Toyota-4runner

What is ABS on a Toyota 4runner

ABS means Anti Blocking System . It is a mechanism that will improve your braking, especially during sustained braking. Before the invention of ABS, the brake pedal was simply connected to the pads. When the pedal was depressed, the pads tightened on the discs. The downside with this device is that there can be a risk of skidding. With the help of sensors, ABS assesses braking. Instead of staying pressed on the discs, the pressure will decrease and then increase various times in a very short time, in order to avoid a blocking total wheels of the Toyota 4runner. No skidding, and braking becomes even more efficient.

Toyota 4runner: why the ABS warning light is on

When the ABS warning light comes on, there's no question that the Toyota 4runner has a problem. As with all the other witnesses, it is quite ordinary that it simply concerns an electrical connection problem. That said, it's better to be sure.

False contact

Follow the wiring of the ABS probes of the Toyota 4runner and take the electric voltage using a multimeter . In the event that one of them does not have the same value as the others, it is because there is an electrical problem. Reassemble the line, if you find a connection fault it is necessary to resolve it. When a cable is damaged, it must be replaced.

A sensor problem

This is of course a fairly common problem for a Toyota 4runner. The sensor may be sending the wrong message. In this specific case, it will suffice to replace the problematic sensor. It is possible to check the sensors using a oscilloscope .

A problem with the hydraulic block

The ABS of the Toyota 4runner works using a device hydraulic , which will manage the pressure of the brake pads. When this device is defective, changing the ABS block is usually necessary. When it's a block problem, you can usually feel it when you brake.

Conclusion

An ABS warning light that comes on can come from many different causes. Either a sensor problem, an electrical fault. In the event that the ABS unit fails, it is probably necessary to replace it. And this operation is found to be relatively expensive, for a Toyota 4runner or for each model of automobile. It is important not to abandon an ABS warning light, for obvious safety reasons. Do not hesitate to leave a comment if this specific ABS witness article was useful to you. Good road!