@Number Twelve
I kinda don't think so. If equipped with 4X4 AUTO, PCM is programmed to recognize that the front wheels will
always be turning at unequal speeds when negotiating curves or parking, so unless a difference exists between
rear axle speed and either front wheel's speed, it purposely skips turning "ON" the clutch in the Transfer Case. If equipped with Advance-Trac or Stability Control, the rear will have wheel speed sensing on both wheels, otherwise only one sensor looking at differential carrier (and thus, axle) speed. The key here is that front wheels are "free-wheeling" in 4X4 AUTO until a rear wheel, either one or both, suddenly changes speed, as in wheel spin on gravel or slick surface. It is not a natural thing, but of course a faulty rear wheel speed sensor might give erroneous data, which might cause the front wheels to be driven, but then when driving straight ahead, PCM would recognize the failed speed sensor, and begin warning the driver, likely by flashing the 4X4 HIGH lamp, and setting an appropriate code. imp