Unplug connectors

Unplug connectors
Unplug MCM connectors A , B, and C, and the BCM connector A. You also need to unplug the small grey fan connector at the far passenger side of the harness. There is a push clamp at the bottom of all of the connectors that must be pressed and held as the connector is pried out of the MCM and BCM body. A large flat blade screwdriver prying the top out, while you press the release clamp seems to be the easiest way to get them out. Make sure the clamp is released, or you could damage the connector rather than remove it.
It is also a good idea to use a sharpie to mark the connector with the proper number so it is easy to put it back together.