1997 Pontiac Grand Am Anti Theft Issue?

[David]

Have a 1997 Pontiac Grand Am. Around 8 months ago, the gages on the instrument panel started to do what they wanted. During idle, driving, they would bounce all over the place. The car worked fine, except for the instrument panel. Then one day, the car was started and the engine stopped. The anti theft light blinked a few times then stayed on steady. The car then sat for 8 months. Now, my daughter is starting drivers ed soon and I am trying to get the car back up to snuff. This is where I am now. Because the key for the ignition could always be removed from the ignition during any position, I had the ignition rebuilt. That is now working (the key will not come out like it used to). The relearn procedure, the long and short kind do not work. After doing the procedure, the anti theft light blinks and stays on steady. It has NEVER gone out. I see a lot on the net about how the light will go out after 11 minutes. I have been doing 15 minute intervals and the light stays on. And 30 sec off intervals. Also, have taken out the instrument cluster and it looks fine behind it where the cable hooks to the back of it. And the ground and positive side where the wires hook to the battery look fine.
I am thinking that there is more than one problem here. I was wondering if there is a way to check the electronic thing under the tumbler with an ohm meter? And since the instrument cluster was having problems for a while before the car finally quit completely is there a way to check the instrument cluster electrically?
Thanks in advance
Also, all relearning has been done with a battery charger on the battery. So, it is not a low battery...