Inspection of BCM and its Circuits: Notes
WARNING: This page is about a different car, the 2006 Suzuki XL-7. However, it is still accessible from the selected car via links, so may be relevant.
BCM and its circuits can be checked at BCM wiring couplers by measuring voltage and resistance.
CAUTION:
BCM cannot be checked by itself. It is strictly prohibited to connect voltmeter or ohmmeter to BCM with couplers disconnected from it.