I recently purchased a 90 300ZX. I have a problem with the stock alarm system. Currently it thinks that there is a door ajar because I have that indication on my dash" door ajar". The alarm is constantly alarming so I had to pull a fuse to deenergize the alarm. That unfortunately deenergizes my alot of my console so I would like to either find the problem or just find the alarm unit loccally and disable it. I know that all the sensors work properly because I took them apart. The door ajar light indication that I have is a DIM indication and not a full light, like when I open the door normally it is alot brighter. So I believe it is grounded out somewhere on the door light indication. The problem is I don't know where the alarm system is so that I can cut power out to it locally. If you know of anything could you please repley. I am against the ropes with this one. Any help would be deeply appreciated.

Thanks
Mike

 

I"m not sure if the alarm system in the 2nd gens is the same as the 1st, but I have an 85 300ZXT, and it kept telling me that my right door was open, even tho I can assure you, it wasn't. But I thought it was a ground at first, cuz my window on that side is missing a ground (window goes down, doesn't come up, motor and switch work perfectly) but lo and behold, the striker plate on the sill had moved just a little tiny bit, just enough to trip the sensor. I don't know if that's your problem, but if you're stuck, try loosening the latch plate on the sill and move it in just a little bit, tighten it up, and see if it helps. Mine didn't talk much at first, but it got worse and worse over time until I had to crank my stereo up real loud to drown my lady out (right door is open... right door is open...) (aftermarket stereo)

Hope that helps!