ABS light on intermittently – no error codes


Why does my ABS light only come on sometimes?

The four common reasons that typically cause this light to turn on include a malfunctioning ABS module, low levels in the fluid reservoir, broken wheel speed sensors, or the system is turned off. Your ABS actually shares some important components with another system in your vehicle: your traction control system.

Can a ABS sensor be intermittent?

Rust can develop between the axle and the ABS speed sensor ring. The rust acts like a wedge and causes the ring to crack, creating a false or erratic signal that results in intermittent ABS operation.

What is the most common cause of intermittent ABS concerns?

The most common ABS problems occur when sensors become contaminated with debris or metal shavings. Malfunctions also occur when sensor wiring becomes damaged, resulting in intermittent or no continuity.

Can blown fuse cause ABS light to come on?

Sometimes a blown fuse to the ABS can cause the light to come on and stay on. Fuses are easy to blow, so sometimes it’s an easy fix to check.

Can low differential fluid cause ABS light to come on?

Your Low on Brake Fluid in Your Vehicle



One reason your vehicle’s ABS light is on is that it may be sensing abnormally low levels of brake fluid. If your brake fluid is low, you will be able to notice through the quality of your car’s braking as it may seem soft or spongy.

Can a weak battery cause ABS problems?

A weak battery can cause the ABS light to turn on. A brake light that is not working or has burned out can also cause the ABS light to illuminate.

How do you tell which ABS wheel sensor is bad?

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You know if it's producing a signal now I can use an advantage Pro and hook it up.

How do you know if you have a bad wheel speed sensor?

If a wheel speed sensor fails, the ABS light, Check Engine light, or the traction control light will illuminate on your vehicle’s dashboard.

How do you test a faulty wheel speed sensor?

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In we're spinning the wheel hub anti-clockwise. The direction the car goes. And as we spin. We're getting no ac voltage at all. So that is a very good indicator.

Is it OK to pull the ABS fuse?

It’s best to pull one fuse at a time and test drive your car to see how it’s been affected. Sometimes, when you pull a fuse, multiple systems can turn off, which might create an unfavorable situation. Of course, if the fuses don’t work, you can start unplugging sensors.

Where is ABS fuse located?

The fuse box for the ABS is located in the engine compartment on the passenger’s side.

What fuse controls ABS light?

This is controlled by the anti-lock fuses and relay. The first fuse (a 10 amp fuse) must be good in order for electricity to flow to the relay, and the relay must function to provide power to the second fuse (a 30 amp fuse). This fuse must be good as well in order for power to flow into the entire ABS system.

What happens if I remove the ABS fuse?

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You could shut it off by removing the fuse your brakes will still work normally.

How do you test an ABS relay?

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First locate your connector for an ABS sensor. And take it about then switch on a multimeter to resistance. And put the leads into the connector.

How do you check ABS brake module?

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Test component activation and now these things for the returning pump this is the break part. But before we go there okay check you can check your whole brake module guys bring with the little valves.

How do you check if ABS pump is working?

These are the signs your ABS pump is failing and requires immediate attention.

  1. THE DASHBOARD’S ABS LIGHT IS ON. When your ABS experiences a mechanical issue, your dashboard’s ABS light will illuminate as a warning. …
  2. YOUR BRAKE PEDAL LOCKS UP. …
  3. INCORRECT SPEEDOMETER READINGS. …
  4. BRAKING SYSTEM IS UNRESPONSIVE.


What are the symptoms of a faulty ABS pump?

Brakes Locking Up



However, if your brakes are locking up under normal driving conditions this may be caused by a faulty ABS pump. If you start to experience some strange behaviour from your brakes or notice random clicking noises or pumping of the brakes, these can be the first indicators of this problem.