Gentlemen,
We've all had this problem at some time or other. Your car's battery doesn't stay charged for extended periods. Maybe it's 2 weeks, maybe 2 or 3 days. Something is leaching current from your battery and if it's something more involved than a simple boot light not turning off, you could be in for a world of pain. In the old days before everything got crazy, we'd just pull fuses one by one and find the circuit repsonsible easily enough. But things have changed and your car now has a brain and likes to remain sentient at all times. This can be a major PITA as it means you may have to wait anything up to 2 hours between fuse-pulls for the systems to settle down again into a genuine quiescent state. And given the sheer number of fuses in a modern car, you may be looking at a *huge* amount of time to get through them all properly. However, there *is* an alternative which overcomes these issues. This helpful hillbilly explains how to go about it - and all you need is a cheapo DVM.