What should I do if my wheel speed sensor is not working?
When the wheel speed sensor is broken or not working as it should, one of the first things that are affected is the ABS system. If you press your brakes and you notice that the front tires lock up, you should immediately contact a local ASE certified mechanic to inspect this problem. This problem can be a safety concern and should not be put off.
Is there wheel speed sensor on Mercedes C class?
A few days later a Mercedes C Class arrived also having had a wheel speed sensor fitted by a previous garage. This time the garage didn’t go any further but recognising that they needed more information they enlisted our help to test the car.
What happens if you change the ABS sensor on a Mercedes?
This repair guide will help you change the Mercedes wheel ABS speed sensor on models such as E, C, S, SL, CLS, ML, R, GL models. If the wheel speed sensor fails on your Mercedes-Benz, you will get an ABS warning light on the dashboard, plus your vehicle will go into LIMP mode, and the transmission may no longer shift properly.
How to test an automotive ABS wheel speed sensor?
This is an example of an ABS sensor wiring diagram. Be observant when first driving the vehicle after testing the ABS system. Listen for abnormal noises or performance issues that could indicate a problem which will need further inspection. If you have any questions about ABS testing visit our forum.
What happens when the wheel speed sensor does not work?
ABS does not work properly The anti-lock braking system is designed to apply smooth application of brake fluid to engage the brake calipers and pads to slow your car without locking up the tires. The wheel speed sensor is responsible for relaying the wheel speed to the ECU so that it can tell the ABS system how much pressure to safely apply.
A few days later a Mercedes C Class arrived also having had a wheel speed sensor fitted by a previous garage. This time the garage didn’t go any further but recognising that they needed more information they enlisted our help to test the car.
Can a front wheel speed ABS sensor go bad?
Nice! They replaced the front wheel speed abs sensor, got ride of one error but now they need the abs module too which is in califronia and won’t be here for a few days. Coicidence that both parts went bad at same time? no way.
Where is the ABS sensor on a Mercedes Benz?
Use the same small screw driver and remove the metal clip retaining the connector in the mount on the inner fender well. Pull the connector from the mount and separate the brake wear sensor from the ABS sensor. Move to the rear of the car. With the wheel off you can see the speed sensor on the forward part of the hub.
Where is the speed sensor on a new car?
In most of the cases, it is located near the frame of the wheel. New car owners are usually confused by other wiring harnesses that connect with the wheel, brake pad wear sensor for example. Disconnect the sensor wire by unlocking the safety clasp and pull it away gently.
What was the last wheel speed sensor job?
The final wheel speed sensor job of the week was a Jaguar X Type. Again this job came to us with a bit of history. Two years ago the customer had come to us when his car had failed its MOT on the ABS light.
How does a wheel speed sensor work Chrysler?
Active WSS sensors, which Chrysler refers to as “magneto-resistive” sensors, work like a “Hall effect” sensor and generate a square wave on-off digital signal that changes frequency with wheel speed. This type of sensor detects the change in magnetic polarity (flux) as the teeth on the tone ring or small magnets pass under it.
When to replace a bad wheel speed sensor?
1. ABS Light is illuminated on the dashboard Since the wheel speed sensor also monitors the anti-lock braking system on your car, it’s common for the ABS Light to illuminate when the sensor is worn out, disconnected, or has been struck by debris, which means you’ll have to replace the wheel speed sensor.
What should I do if my speedometer is not working?
Solution : If a bad sensor turns out to be the primary cause, the solution will most likely be to replace the wheel speed sensor. Behind the scenes of your speedometer, there’s a computer and electrical system that helps relay signals about how fast your car is moving, among many other things.
In most of the cases, it is located near the frame of the wheel. New car owners are usually confused by other wiring harnesses that connect with the wheel, brake pad wear sensor for example. Disconnect the sensor wire by unlocking the safety clasp and pull it away gently.
How to pinpoint a wheel speed sensor fault?
We have the dealer level tool and the customer was recommend to Pinpoint Diagnostics by a local garage. At this time we tested the wheel speed sensors and proved conclusively that the right hand front sensor was faulty. The part was replaced and the light was reset.