Bring to a shop that has an ABS scanner to determine the problem
On a 2002 Lincoln LS : The Antilock Brake System warning light is displayed in the tachometer It is near the number " 7 " The warning light shows ( ABS ) with a circle around the letters ABS
frist the brake light looks like its on but its just the glow of the antilock light it is very bright. the antilock is on your rear axle needs replaceing.
It could be a fuse , a sensor , or some other problem with the antilock brake system ( as long as the red " brake " light in your dash is not on you still have " normal " braking )
your brake fluid is probably low or very dirty.
Antilock Brake Light comes on and stays on when the ABS computer detects some problem with the antilock brakesystem components. You will still have normal brake use, but the Antilock system will probably not work as an Antilock brake system is supposed to work. ABS system diagnostic code readers are available and are recommended for diagnostic purposes, however fixing ABS systems is perhaps best left up to the Pros. . .
A problem with the Antilock Brake System has been detected . It could be a fuse , a sensor , or some other problem . As long as the red " BRAKE " light in your dash is not on you still have " normal " brakes
Antilock brake system
It is on because there is a problem with the Antilock Brake System (ABS).
This warning lamp means your antilock brake system has detected a fault. When this happens, the ABS system logs one or more fault codes that correspond to the problem and turns on the ABS warning light. In most cases, it also temporarily DISABLES your ABS system. You vehicle should still brake and stop normally, but it will NOT have antilock braking when making a sudden panic stop or braking on wet or slick surfaces. You can continue driving, but you should have the problem diagnosed and repaired at your earliest convenience. NOTE: If the Brake Warning light is also on, it may indicate a serious hydraulic problem with the brake system. Your vehicle may NOT be safe to drive (see the info on Brake Warning Light above).
Antilock brake system
The Antilock Brake System or ABS light stays on in a 1997 Nissan Pathfinder because there is a problem with the brakes. The brakes are either low on fluid or they need to be changed or adjusted.
Antilock-Braking-System