Another Battery Drain Thread
I have owned my 2005 N/A Limited Roadster for just under a year. The car will not start if not driven every 4-5 days or so (dead battery). The used car dealer where I purchased the car replaced the battery before delivering the car to me. Apparently, it had the battery drain problem before my purchase. I can put a trickle charger on the battery and charge it for a few hours, and the car will start and run fine. I have had the battery checked, and it passes.
Referencing the numerous threads on this topic here on the Forum, I checked the amps being drawn at rest, and the meter shows ~ 190mA. Pulling the two 50 amp fuses in the engine fuse block yields the same result. Pull the 200 amp fuse, and the residual draw goes away. I then pulled each fuse (one at a time) in the underhood fuse block and the ones in the panel to the left of the headlight switch in the driver's doorjamb and observed the following: 190 mA draw until I pulled fuse #9 (Anti-Theft/Body Control Module/Dome Lamp/Cargo Lamp/Garage Opener/Tire Pressure Monitor), then the draw drops by about 100mA to approx 93-95 mA. For all other fuses, the draw is 190 mA with fuse #9 installed, and 93-95 mA with fuse #9 removed as well.
The 100 mA reduction in draw with fuse #9 removed is significant, and I will continue to investigate possible causes. My question for the experts here on the forum is:
Assuming I fix what's causing the 100 mA draw from fuse #9, is the remaining residual draw of 93-95 mA a reason to continue troubleshooting? It is a higher reading than what is considered normal. If I should continue, what do you recommend I try next?
Thanks-
Tommy