Im having problems with something draining the battery on my dads 2005 TL. If the car sits for two days the battery is dead. I have replaced my battery and tested the charging system and everything is fine. Thanks in advance for your assistance

 

Check out the hfl.

 

The HFL/Bluetooth units sometimes continue to stay on more than 30 minutes after the ignition is cut off, thereby causing a continuous drain. Do a draw test on the HFL through the fuse box.
A bad HFL usually requires replacement-- $180 or so in cost, plus a few minutes of time to replace, per several threads here on bad HFL units.

 

Feel the plastic piece behind your map light, if it's warm then it's staying on or you can press the HFL talk button and see if it comes on if not then it's bad. You can either replace it if u use it or just unhook the HFL unit if you don't use it and save you 150 bucks or so and it only takes no even 5 mins to do

 

Thanks to all for the response.