Re: Was that .02 mA, or 20 mA? 11.4 V is a dead>>
Well, you could be right, but I am not really sure exactly what the instrument cluster display is showing during this 'test 13', I just was watching it looking for spikes or dips while I was driving and saw none.
This morning I went out and measured voltages after sitting overnight. The car started right up and I got a constant 13.9 - 14.1 volts across the battery at an idle. I turned on the ac and all the lights and was still getting a constant 13.9 volts. I left the meter connected and turned off the car. The volts dropped immediately to 12.4V and after 30 seconds fell to 12.22 volts and sat there. I disconnected the negative lead, and got a reading of exactly 10mA of load. After 20 minutes the load was Still the same. See next post below for a pic of my meter, maybe I am reading it wrong.
This is all with the FSU removed since last nite.
While the car was running, I switched the meter to AC volts and did get readings which fluctuated between .02 and .04 volts. Not sure if ANYTHING non-zero is significant, or if .04 volts is essentially zero. If this small voltage indicates a bad diode or two, then perhaps this is the problem. 1997 540i Automatic