The most common problem is the wheel bearing or the wiring harness has broken, a visual examination will find the broken wire, but a scan must be done to locate which bearing is At Fault.
The ABS module does a self check everytime the ignition is turned on. During the self check mode the ABS module has detected a problem with the ABS and the ABS light will illuminate until the problem is fixed. As long as the ABS light is on the ABS function is disabled. As already mentioned a scan must be done to help locate and repair the problem.
usually a bad wheel sensor.
why the abs light come on and how rest
No , the brake light should come on when you press the parking brake pedal , but the ABS light should not come on
Faulty ABS unit .
The ABS and brake lights sole purpose is to signal you that you may have a problem with each / or one individual system. From your question we can assume that your ABS and brake lights come on continuously. There by we can safely deduce that you may have a problem with your ABS system and / or your brakes.
ABS stands for Automatic Braking System. The ABS light in a 1997 Ford Explorer will come on when this braking system is activated.
There is a problem with your ABS. Get it seen by a mechanic.
Something is wrong with the ABS system.
An ABS fault.
Problem with the ABS system.
There is a problem with the system. Have this looked at by a professional.
The ABS module has detected a problem with the ABS system so it illuminates the ABS light to alert you. Until the problem is fixed the light will remain on and the ABS system will not function if needed. Consult a trusted mechanic for a diagnoses.