John Posted October 29, 2009 Report Share Posted October 29, 2009 Long story short. I was disconnecting the battery I have up front(standard lead acid battery from oreilys) After removing the negative and positve connections. I begin to pull the battery out...I tell myself how nice it is to have such a bright engine light for working in the dark. LIGHTBULB ON! How in the hell do I still have power to my truck if my battery is completely disconnected? To double check myself, I run to the interior and flip on the interior lights as well as my headlights. Now these, ofcourse, shouldn't work with the battery completely disconnected from the car. So...unless I have a hidden battery I just don't know about or I am high as a damn kite...I shouldn't have power to my truck. Got any ideas? Quote 1999 Chevy Tahoe Level 4 15" AP 3000d Rockford and Phoenix Gold Componets T400.2 Mechman 250 amp Rhino 2 Kinetik 2400 GET LOUD : STAY LOUD : SLAP RESPONSIBLY Link to comment Share on other sites More sharing options...
JasonJones Posted October 29, 2009 Report Share Posted October 29, 2009 No joke I had this same situation happen to me the other day. I was trying to isolate a problem with my PCM and disconnected my main battery harness as well as side terminals that run to my rear batteries. Only positives that are running to the back are my positives from Alt to rear battery.... Next thing you know with main battery harness disconnected I have lights.... So to clarify you only have one battery up front that is connected by factory harness and no capacitors or extra batteries anywhere else located in the car? Quote Link to comment Share on other sites More sharing options...
raytard Posted October 29, 2009 Report Share Posted October 29, 2009 uh, ur sig says 2 hc2400 so you have 2 other batteries in there? forget about those? Quote Build: http://www.stevemeadedesigns.com/board/ind...hl=avalon+build monster/rockford/kicker/stinger cables, pioneer source, jbl highs/amps, kinetik/shuriken batts, iraggi alt, dei security, dc subs(atleast for now) Team DC Link to comment Share on other sites More sharing options...
HHR Ed Posted October 29, 2009 Report Share Posted October 29, 2009 Caps in the PCM, BCM, ECU, etc... Do hold residual power. Also, do you have a CAP in your system? Or perhaps an alarm with a back up battery? Quote Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
HHR Ed Posted October 29, 2009 Report Share Posted October 29, 2009 uh, ur sig says 2 hc2400so you have 2 other batteries in there? forget about those? haha, yeah, you may wanna check those. Quote Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
kl0wn Posted October 29, 2009 Report Share Posted October 29, 2009 .... you were just high as a damn kite ...jk! Quote 06 Mini Cooper S Sundown, SoundQubed Cadence, XS Power 151s Sealed 155s Outlaw Windshield @ 37hz Link to comment Share on other sites More sharing options...
John Posted October 29, 2009 Author Report Share Posted October 29, 2009 I do have two batteries in the back but they are ran directly from the front battery. I dont even have a run coming from the alternator to them. I have no other equipment related to the source in my vehicle. No battery backups for alarms or capacitors or anything. I understand that my pcm and my ecu do hold a charge. But not for upwards of 10 minutes with all lights on and radio playing... Quote 1999 Chevy Tahoe Level 4 15" AP 3000d Rockford and Phoenix Gold Componets T400.2 Mechman 250 amp Rhino 2 Kinetik 2400 GET LOUD : STAY LOUD : SLAP RESPONSIBLY Link to comment Share on other sites More sharing options...
Blackedout Posted October 29, 2009 Report Share Posted October 29, 2009 (edited) 2 batts in the back... Edited October 29, 2009 by JDirty96 Quote Trunk Build Log Link to comment Share on other sites More sharing options...
John Posted October 29, 2009 Author Report Share Posted October 29, 2009 Not to mention...everytime in the past that I have disconnected that battery, everything goes night night like it should. Quote 1999 Chevy Tahoe Level 4 15" AP 3000d Rockford and Phoenix Gold Componets T400.2 Mechman 250 amp Rhino 2 Kinetik 2400 GET LOUD : STAY LOUD : SLAP RESPONSIBLY Link to comment Share on other sites More sharing options...
raytard Posted October 29, 2009 Report Share Posted October 29, 2009 if the line going to the back batts is touching the car side of the positive terminal (like mine are) there is still a full loop, and current is still available. Quote Build: http://www.stevemeadedesigns.com/board/ind...hl=avalon+build monster/rockford/kicker/stinger cables, pioneer source, jbl highs/amps, kinetik/shuriken batts, iraggi alt, dei security, dc subs(atleast for now) Team DC Link to comment Share on other sites More sharing options...
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