Thanks in advance for any help with this. I have been troubleshooting this problem off and on for months. I've pretty much read everything I could find on the internet about this. I've done all of the basics, new battery, check for light at night, etc. Did have a little trouble with the six disc changer under the armrest and removed the cartridge but that is not the cause.
Here is what I've learned. Placed an analog current meter between the negative battery terminal and the cable. It has a 500ma scale and a 100mz scale that I can work with. When you first complete the circuit it pegs the meter for 5 to 10 seconds then it comes back down to about 1/2 scale and then a short time later drops to about 68ma. I believe that this is where it should be resting.
If you open the door it pegs the meter again, close the door and the meter eventually drops to about 350ma, it never returns to 68ma. That is the current draw that is killing my battery. I have learned that if I use the key fob to lock the doors that the meter does return back to 68ma where it should be. Repeated this test many times.
I have also removed all of the fused in the box under the hood and discovered that the draw is coming through the supply to the fuse box on the passenger side, kick panel, fuse box. I narrowed that down to the draw going away when I remove the ECU-B2 fuse.
Something that powers up when the door is opened (doesn't matter which door) does not power all the way back down after the door is closed, even after waiting for 30 minutes, still drawing about 350ma. Note that I have the dome lights turned off with the switch and also have the headlight switch set to off. I see the lights in the door come on when I open the door but they turn off when I close it. Again, I waited for dead of night, pitch black, to see if I could see anything glowing. Nothing is lit up, no glove box light, no rear DVD player activity, checked all of that.
We borrowed a very sophisticated Snap On reader and determined that there were no error codes in any of the modules, specifically the body module. Cleared the readings and started the car, moved it a bit and read the computers again, nothing, no error codes.
Anybody know all of the things that come on when you open the door and that shut off completely when you lock the door with the key fob? Help! I just had to spend a couple hundred on one of those emergency start batteries.
Here is what I've learned. Placed an analog current meter between the negative battery terminal and the cable. It has a 500ma scale and a 100mz scale that I can work with. When you first complete the circuit it pegs the meter for 5 to 10 seconds then it comes back down to about 1/2 scale and then a short time later drops to about 68ma. I believe that this is where it should be resting.
If you open the door it pegs the meter again, close the door and the meter eventually drops to about 350ma, it never returns to 68ma. That is the current draw that is killing my battery. I have learned that if I use the key fob to lock the doors that the meter does return back to 68ma where it should be. Repeated this test many times.
I have also removed all of the fused in the box under the hood and discovered that the draw is coming through the supply to the fuse box on the passenger side, kick panel, fuse box. I narrowed that down to the draw going away when I remove the ECU-B2 fuse.
Something that powers up when the door is opened (doesn't matter which door) does not power all the way back down after the door is closed, even after waiting for 30 minutes, still drawing about 350ma. Note that I have the dome lights turned off with the switch and also have the headlight switch set to off. I see the lights in the door come on when I open the door but they turn off when I close it. Again, I waited for dead of night, pitch black, to see if I could see anything glowing. Nothing is lit up, no glove box light, no rear DVD player activity, checked all of that.
We borrowed a very sophisticated Snap On reader and determined that there were no error codes in any of the modules, specifically the body module. Cleared the readings and started the car, moved it a bit and read the computers again, nothing, no error codes.
Anybody know all of the things that come on when you open the door and that shut off completely when you lock the door with the key fob? Help! I just had to spend a couple hundred on one of those emergency start batteries.
