View Single Post
      05-14-2009, 06:45 PM   #35
Major General
lucid's Avatar

Drives: E30 M3; Expedition
Join Date: Apr 2007
Location: USA

iTrader: (0)

Originally Posted by sparkyg View Post
Errr, not looking good Lucid.

Didn't know the CA drew that much current. Is it on all the time actively trying to search for a transponder?

I thought once you touch the door it turns on then I would think it looks for the right electronic key.
These kinds of systems go into some kind of power save mode, but they are, by definition, still active, scanning for a signal. So yes, CA will draw a small amount of current. However, I have had my car sit for 2 weeks (with stock battery), and I had no problems cranking the car after I got back. So, I don't see how CA is able to draw enough current from the Braille battery over a couple of days or so to cause problems...