Yes it sounds like your ABS sensor is bad and the sensor is located behind the hub assembley connected to the hub Remove it and get a new one or just deal with it. It will not hurt anything, you just will not have Anti lock brakes.
Like the old Christmas tree lights, no; lights connected in series will not stay lit if one (or more) are either burned out or disconnected from the circuit. Lights in series are connected "head-to-tail". Take one out, and the circuit is incomplete and will not work.
Nothing will happen to the rest of the lights if they are connected in paralell. If they are connected in series when one light is broken all of the lights go out.
If you mean Christmas lights; that was before. Nowadays Christmas lights are connected in parallel.
Overhead lights are typically connected in parallel. If they were connected in series, then, if one light went out, all of the lights would go out. Think of Christmas lights, they are connected in series. When one of the lights burns out, the whole string of lights goes out.
Day time running lights?
Yes.
behind the head lights
you need to change the flasher can for the signal lights
The 1995 Pontiac Grand Am has reflectors on the sides that may look like side marker lights, but they are only reflectors. The tail lights and front parking lights are so positioned that they can be viewed from the sides, so separate side marker lights are unnecessary.
series
no
it would be great to know..