Originally Posted by JCL

Patrick-Irish:

You don't need to change the final stage resistor. You don't need to disconnect the alarm or sensors. At least not yet.

What you need to do, as you intimated, is a residual current test, to determine how much load the various accessories in the vehicle are drawing.

The vehicle goes into sleep mode after 20 minutes or so, and the power consumption is greatly reduced at that point. It should be under 50 mA. If any small load is still present that load can prevent the vehicle going into sleep mode. In that case, the total draw can be much higher than just the faulty item, whether it be an FSR, alarm, telephone module, or what have you. Be aware that when you check for the residual current draw, you can't disconnect the battery, as that can reset things and invalidate the test you are doing. You need to keep the battery connected, and a door open to access the battery (with the sensor tripped so that the vehicle doesn't know the door is open).

Some instructions here:

http://www.xoutpost.com/bmw-sav-foru...dies-fast.html

Good luck.

Jeff