Texas Ground Pounder
Join Date: Feb 2007
location: McKinney, TX
Thanked 54 Times in 47 Posts
Number 1, you have a parasitic draw somewhere. From past reads on this same subject (and some of my own experience) it is usually a bad door switch, door lock actuator, or bad starter. However, trying to determine this on your own will be difficult. Honda techs have a pretty advanced computer which can tell exactly where this draw is with ease. So you may need to visit your local dealer to hash this one out.
Something to keep in mind on your testing. After shutting down the car and closing it all up, the computers inside keep drawing power for a few minutes before they go in to sleep mode. Each time you open a door or hood, this "wakes up" the computers causing them to draw again. So if you are opening and closing the doors in between readings, that could be the cause of the drain.
Number 2, you need to get some readings on the battery with the engine running. This will help determine if the alternator is charging properly or not. As mentioned earlier, you should be reading 14+ with it running. If the alternator is not charging properly, than that would be the start of the issue.
2003 Accord EX Sedan V6 Auto NAVI (Noble Green Pearl)
Mods:Fog Lights-front & rear TL sway bar-V6 MT shock tower bar-AEM V2-Magnaflow cat-back-Window & Moon visors-Kaminari Lip Kit-Bug Shield-CUSCO Type II TSX Lower brace-Enkei EV5 wheels-Trans Cooler
Audio/Video:audio under construction-KP window up, one touch moonroof, mirror tilt-Dice iPod-Rear Camera-TVandNav2go Video
Wish List:Air Ride-Charger