I’ve got a pretty bad parasitic draw on my battery in my ’09 GT and I can’t figure it out. With the car off, I’m pulling 10.2 v. I can get it down to 8 v by pulling the Interior Lights fuse in the cabin. I isolated the radio and it’s not the problem. I don’t have any lights on that I can see.. trunk light is off, both dome lights are permanently set to off.. I can’t leave the car for more than 6 hours or it’s dead again. I replaced the battery in it in January so it shouldnt be my problem. I’ve also cleaned the ground to the frame and the alternator. Has anybody dealt with this and/or know how many volts the battery should be drawing with the key off?

 

Current is in amps, not volts, so I'm not sure what you mean. I would get a multimeter and measure current through each fuse in the fusebox to narrow down which circuit is responsible.

For example I have a weak phantom current through the headlight washer circuit, solved by removing the headlight washer fuse.

 

So you don't use your washer anymore?

*Edit: Nevermind, headlights.
Stoopid Canada, eh?