So I have had some problems with my car battery dying. So I took it into the shop and had a guy look at it. He said that there is something drawing power away from the battery when it is turned off. One of the door ajar sensors is not working correctly so it says that the door is always open, so I have the dome lights turned permanently off so that it does not draw power. (but maybe it does anyway)
The mechanic began to play with the fuses and finally got to the one that controls the door ajar sensors and when he took it out the draw on the battery stopped. So now I do not have dome lights in the car which i can deal with, but the fuse is also connected to the car alarm, which he said may also be the problem, and also the CD player. So now I do not have a CD player. I talked so some one and they suggested taking out the car alarm to see if that is the problem, but I do not want to cut the wire and wait a week to see if the car doesn't start when I need it. The mechanic said that he wouldn't be able to fix it, and told me to try to take it to a specially shop.
Now I want to narrow it down, is it the alarm, or the door ajar sensor that is the problem. So I am thinking of checking out the current on the battery, with and with out the car ajar sensor and also the alarm system to see which one is the problem. I figured out a way to make the car ajar light go off, so I want to do that and then compare the current before and after I change it so see if that is the problem.
So I do not have tons of experience with electronics, so I was wondering what the best way to check the current is. I would need to go and buy a voltmeter from the store I'm assuming.
Do any of you have any experience with this kind of stuff? If I buy the voltmeter what settings should I use to check for it, and what should I connect the wires to?
oh and the car is a 1996 4Runner.