What happens if ABS sensor is bad?
Faulty ABS sensors will surely cause your brakes to stop responding quickly. You will notice that your brakes take a longer time to respond. However, when the sensor is good, but the module is bad, you may experience significant traction loss when driving.
What does ABS speed sensor do?
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.
When does the ABS light come on on a Pontiac Sunfire?
Your Pontiac Sunfire’s ABS Light comes on when it fails a self diagnostic cycle. When on, it indicates that the Sunfire does not have Anti-Lock brakes, and the safety they provide. Your Sunfire’s ABS system uses a system of sensors to determine wheel speed when braking.
Why do I have an unwanted ABS activation?
If the brakes are applied while the vehicle is traveling at a speed greater than 3.7 mph but less than 10 mph, the corrosion may cause an unwanted ABS activation. Use the following procedure to repair corrosion where the front wheel speed sensor mounts on the front wheel bearing assembly:
How does the ABS system work on a car?
The ABS system is made up of the ABS module, and ABS sensors at each wheel. The sensors detect wheel speed, and will send a message to the ABS module to rapidly pump the brakes when it is detected that the vehicle is skidding or has lost traction.
What happens when the ABS control module fails?
Unresponsive brake pedal In certain cases, depending on the model of vehicle, when the ABS module fails, the brake pedal may become unresponsive. This is an obvious problem, as an unresponsive brake pedal will not stop a vehicle, or will not be able to do so in an adequately safe manner. In most cases, this will happen slowly, over time.