Expert: Sean Halliday - 1/14/2007

Question
I have a problem with something draining the battery.
I have replaced the battery,cables,alternator,everything I can think of. I have checked the wiring and can't find the problem. Do you have any ideas what to check next?

Answer
Ok,heres how to test for drain.Remove the negative terminal from your battery and using a 12 volt bulb(any single bulb will do),hook it up to the negative terminal on the battery and the cable that you took off.Ignition off and all electrical items,radio etc,,off(small crocidile clips are best).If you have a small glow then thats normal for clock or radio but if its bright then theres a big drain and simply remove one fuse at a time until you find what is doing it.As the light will dim when you remove the fuse .Also check your interior lights are going out when the door is closed,best in the dark.Sometimes can be staying on very dimly.As well as the side lights and all running lights are off when supposed to be.Again in the dark.