89hatchman

So I'm pretty stumped here. I recently bought a 95 S14 with the stock KA24DE and an auto transmission.

It sometimes will crank but 90% of the time it won't. It cranked yesterday morning and then wouldn't the rest of the day, it cranked this morning and now it won't at all.

When I turn the key to crank it the radio turns off, lights dim, and all the usual stuff happens that you'd expect. So I'd have to assume the key cylinder is functioning correctly. I even took it out and rotated it manually all the way but had the same results.

In an attempt to trouble shoot this I have jumped the auto plug that you loop when you do a manual swap. Still the same results.

I've replaced the black relay under the hood which I believe is the "clutch relay", also labeled ASCD relay. Same results.

Battery is good, it's fairly new and on a charger as I've done all this testing. Starter is good, because when I crawl under the car and manually send 12v to the solenoid it cranks and starts.

Could this be some sort of immobilizer system? As far as I know it's all stock. It's an SE model and has the factory alarm light near the hazards and defroster buttons.

Help!