1996 eldorado ABS light keeps comin on and off

it is an abs relay

as both units are indicated I would be checking the wheels for broken sensor wires or faulty sensors
both units use the same wheel sensors.

If you mean the check engine light, what are the trouble codes ?
And what is the make model and year ?

On this website you find fuse box diagram and description for Cadillac Eldorado (1996)


https://www.carknowledge.info/cadillac-eldorado-1996-fuse-box-diagram

take it in for a computer scan of the brake system.seems like abs system is causing pulsation .if rotors shake when you are braking then could be rotors need machining.

You have a trouble code in the ABS. You need to have it scanned for codes or you can scan it yourself with the onboard diagnostics. You likely have a bad wheel speed sensor.

I had this problem when I change dsmy rear brakes and accidently disconnected the electrical connector for ABS/traction control. Make sure they are all seated well..........

look for any wires touching under the hood. possibly change throttle control. check the abs plugs one at each wheel . check engine light is most likely on due to the transmission issue

If the light is not on it may not be the ABS that is pulsating on slow braking but it may be that your have warped brake rotors, even if the rotors were replaced with the pads the new ones may be warped already, we always check new rotors on a brake lathe before installing them because we have seen this happen many times