ive read codes off of gm's before...and this doesn't seem like a normal code, something goofy is up

here is exactly what happens

turn the car on -not start, (with jumper in)

abs light comes on, stays on for about 2 seconds then goes out

5 seconds later, comes on for about .5 seconds

5 seconds later, comes on for about .5 seconds

never comes on again.

the first light, i thought, didn't mean anything. and usually the code recycles itself but its not doing that. and is it usually 5 seconds between blinks?