I attempted to help my brother with a confounding problem with his car this afternoon, and after a few hours of work, we were no closer to an answer than when we started.
Recently, his battery has been draining down overnight. He thought maybe he had a bad battery, so he got a new one. Same problem.
I went over there today and found that the car is drawing 1.6 amps from the battery even when turned off.
We started troubleshooting by pulling fuses. The car kept drawing 1.6 amps through all of them.
I pulled the main fuse, and the car still drew 1.6 amps.
For a while, we thought it was maybe the alternator rectifier, but that wasn't it.
We unwrapped the sheath from the main bundle of wires coming off the battery and found no shorts.
We disconnected the wiring to the starter and that wasn't it.
The car still draws 1.6 amps! We can't figure out what's doing it!
