Tried to reply earlier but my post didn't go through, at least it didn't show up after a couple hours so figured I would answer again. My apologies if any of you see a repeat.
Apial, I was absent because I couldn't reset my password. Paul finally had to do it for me. I had requested the instructions several times but they apparently kept pulling left and never got to my mailbox...
If you blew out a 1/2 amp fuse (hope it didn't damage your meter!), you have a major problem with the electrical system. I suggest you get to the dealer and get it sorted ASAP. Draining a battery and recharging it repeatedly is going to shorten the life of it. Deep cycle (marine) batteries are designed for it but automotive batteries are not.
Whatever is drawing the current is going to be dissipating power, so will be warm or hot. With the car overnight cold, pop the hood and feel around the engine, on or under the dash, on the doors, etc., to see if you feel a hot spot. If you do, it means the ECU is not shutting that part off.
Excessive (over a few millamps) current drain when the car is parked is NOT normal. My neighbor has a Buick with central locking and an alarm. It stood in his driveway for two weeks without being driven (he was on holiday) and the battery did not go flat. It started right up when he got home.
When you shut the doors, the windows go up. I wonder if the power to the window motor is not shutting off. That is about the last thing that would be activated when you park and exit the car. To test it, you could roll the windows down an inch or two, get out and close the door, then test the standby current. Process of elimination is sometimes necessary to locate the source of the problem. |