The early Z's have tension releasers in the seatbelt itself to ease the tension in the belt when you open the door so if the seatbelt is fastened it is easier to open. I cant remember exactlty what the cause is that makes it come on when it shouldnt but it will drain the battery.
If I remember its a switch in the outer door handle that causes this.
I would suck monkey balls to get my Z black... (n/m) - scottyfender 02/22/08 23:14:01