The actuator is engaged/disengaged with vacuum only. The yellow vac hose with vacuum shifts to 2H and the blue vac hose with vacuum shifts to 4H. There is a sequence of operation for the solenoids (A&B). My manual has the test procedure using a vacuum pump, if you want it PM me.


92 Montero LS 3.0L V6 Auto, Stock, Original owner, 185,800K miles