If the light of ur anti lock sensor doesn't come up when car start..what might be wrong? car does have a it.?

The brake doesn't engage when sliding. 1997 Acura 2.2 cl. I did verify that the car has an anti-lock system. i bought it used last year.|||bulb blown. if there is a problem with system it would stay on. when it comes on at start up and goes off that means the computer is going threw it's systems check. it could be the computer for the anti-lock is not working properly but i would start with the bulb. even if the computer was not work properly the light should come on and stay