I think that the defective circuit may not be drawing 4 amps, but drawing just enough to not allow the car to sleep.

I guess my next step would be to test the current flowing through that circuit at the fuse.

Regarding the washer pump, I have already burned out one, and am hesitant to install the second replacement unit. There seems to be 8.5V to the windshield pump, even when it isn't active. I am wondering if that is normal, or is what burned out the first replacement unit. I posted a question about this many months ago and received no reply. I need to go across the street to the inlaws, who have an 04 X5, and test their system.

Oh yes, regarding California: We live in the Central Valley, just south of Sacramento. 90 minutes to the ocean (San Francisco) and 90 minutes to the mountains (South Lake Tahoe). We have a place at the base of the Heavenly Valley Ski Resort, so we are up many weekends in the Winter. Having washer pumps that function are a necessity.

Regards,

Gary