It sounds like pulling the connector off the BMRA is what I need to do to be sure whatever is shorting in the BMRA is disconnected and does not continue to drain the battery.

 

worth a shot

 

I have a parasitic draw on my battery.
I found it going thru fuse 51. I can only find that fuse 51 feeds the HIGH speed of the blower.

I did a desk top continuity test of BMRA and do not see anything I identify as a short. (?)
See Image Below.

I assume that to have a parasitic draw thru the BMRA it would have to have a short in it feeding power to ground.

Anyone see what I am missing?
Could this mean there is a short in the r/blk wire from fuse 51 to the wide connector?

Since the blower motor is feed by the BMRA could it short without the BMRA? ... clutching at straws

 

I have a parasitic drain on my 1988 G20 van I still can't figure out.I've pulled all of the fuses and put a test light between the positive cable and the positive post and it still lights up.

 

how much is the draw? Use a amp meter instead of the test light. anything over 50mamps is excessive. What aftermarket items are wired into the van. Aftermarket remote start modules can add 30mamps.