Chosen Solution
my 2000 grand prix GT 4 door sedan tries restarting itself in accessory in the ignition key
It was the ignition switch. Bought a new one and it works great now.
I would say it needs an ignition switch. The switch could be located behind the key and tumbler or on the steering column. I would need a picture of the key tumbler and the steering column on the right side and I can tell you where it’s located. But the solenoid and the relay will only work if they have a power signal to them. And the only place that happens is the ignition switch.
