I have a 84 300zx non turbo and I have been noticing whenever i park the car and turn it off. In 15 minutes or less the car's headlights turn on regardless of the fact the car is turned off and the headlight is switch is turned off. They turn on even without them being flipped up. If anyone knows what it may be please help me out because this scenario is killing my battery daily. Thank you

 

try pulling the fuse on the alarm system. it maybe trying to alarm

 

Maybe your headlight relay shorting ?

 

have you solved the problem? i had the same one, but i found when i left it turned off but clicked into high beam it didnt do it, i have a spare switch assembly here that im going to put in when i get a chance and see it that stops it

 

My '88 would do this all the time, I eventually just pulled the headlight fuses while I drove, and if I needed the lights I would just plug them back in. It seemed that they would turn on at the slightest bump. I replaced the switch assembly and I have't had any issues since.

 

I have the same problem. I also just flick my high beams on with the lights off. I was told to check my contacts.

 

This.