Just joined, reading posts to help with parasitic battery drain issues that occur on 2007 TL's. Have previously disconnected HF because of drain issues, now researching other drain probabilities.

 

Interesting article from Acura that I found buried in the sites posts: LinkDeny



Other possible sources of battery drain that have been listed within posts on this site:

Hands free unit


The A/C Relay was stuck so the A/C compressor was trying to click on even when the car was off causing a large power draw.

Parasitic draw traced to the MICU for the interior lights

Bad outside temp sensor was causing battery to wear the battery down. It got to the point that it would go dead in 2 days if not started.

 

link should have read: "www.in.honda.com/Rjanisis/pubs/SN/B080700.PDF" note: take out quote marks when posting to a browser