have you pulled the fuses yet?

to test your theory, you can disconnect the center hot lead that powers the ABS,TC system, this will shut off the torque mangament to the open diff.
it's located in the small flip open box next to the ecu or battery, there are battery leads going to it. you could install a simple knife switch on the fender to kill power for drag racing.

this is much simplier than futtsing around with the yaw sensors