Originally Posted by
edcross1608
My 2005 coupe also has a parasitic drain. Here are my finding after digging into it this morning: With the car locked the drain was significant and fluctuating. In unlocked state the draw settled down to .25 Amp with all fuses in place. After checking all fuses I found Fuse #35 (instrument cluster) accounted for .05amp drain and #9 (int lights, horn, alarm) accounted for .17amp drain. Remembering that the RCM had been updated allowing the horn to work independently I'm removing fuse #9 to reduce the draw to .08amp, when unlocked. I did not check the draw by locking manually. Not ideal but an improvement
More notes:
Fuse 35 feeds a LOT more than the IC. It also feeds the "FOB Receiver" in the SKREEM, the Keyless Entry Relay, part of the Climate Control module (part that does the REST function), Hazard Warning lights, and the "Key is in the ignition switch" sense circuit. That line should show less than 12mA, not the 50 you are showing.
And if you are in the USA with a USA car, its' like this:
Fuse 13: BCM, Homelink, Dome Light, Anit-tow Sensor
Fuse 9: Siren and Intrusion Sensor
(Based on my 2007 SE and the 2007 manual - I dont' have the 2005 manual here but I think it agreed, altho I do know some changes were made for 2007/8 and this might be one of the changes.
Use my text here with caution as it may not apply to 2004-2006.)