ok thx!!

I actually found the problem happening 15-30mins after i shuts off the car, if its completely cold and left for couple hours or start it right after i shutted it off, its alrite, but if its after 15-30mins after i shutted it off, the light would come on once its started and goes off which its normal at this way, but then it comes back on for like a second then it would go off again. is this normal as well?

thx