Hi Rich; if the blower's dead then we follow this chart, C 1-d:



The next image in this chart is the wiring diagram previously posted. By 'backprobing' they mean we insert the meter probe into the connector at the same place the wire goes. This is necessary when checking for an output from a module. Pins make this job easy:


if there's room and the probe tips are small in diameter and they fit easily:


The BCM has two connectors; one has 24 cavities and the other has 32. These are typically called 24 pin and 32 pin connectors [as are all connectors] even though there may be no actual pins in many locations. Your two connectors with their circuit to pin assignments and wire colors follow:

CAUTION! This view of the connectors is the pin side, not the wire or harness side. Some [most Asian] manufacturers tell you this, GM engineers [the, um, nice people who designed all their flow charts and diagnostic procedures] chose not to. Above, as you can see, is the connector with rows A and B, next is the C/D connector:


If your voltage measurements call for a BCM, I would try disconnecting the Fuel Data Center [FDC] and Electronic Climate Control panel [ECC] one at a time. With only one of these connected [and nothing else disconnected] turn the key on and see if it 'wakes up'. If it's dead, cycle the key off and try the other. There have been rare instances where one of these was pulling down the 16v supply from the bcm, but not enough to damage the bcm-just enough to prevent any of them from turning on. If you get no reaction, try turning the key on with both the FDC and ECC disconnected>watch the IP for any activity. If anything happens with the IP when both modules are out, one of them or both of them could be the culprit [very, very rare]. There is a rather extensive built in self diagnostic [scanner] system, but the ECC panel needs to be working to use it.
Your BCM is here:


It's behind the dash on the passenger side, way up high in 'don't cut yourself on those sharp edges' territory. The procedure to get it out, and another illustration:

I once tried to put together a list of acronyms in the industry. I gave up. DERM=Diagnostic Energy Reserve Module; it's what most others call the Airbag Module. The 'reserve' means it's got the capability to store enough electrical energy to blow the airbags if, in a verified crash event, the power supply to the DERM is cut off. If you swap the bcm: key is off, battery is disconnected, ["battery cables shorted together" - it seems this suggestion shows up quite often and I can't see why. It won't really do anything like discharge any stored energy for computer memories or in the DERM, but it makes people watching you think you know what you're doing. Plug in the 'new' BCM and flip on the key. Jeff