HEXA

TOD 8 MODE OF SHIFTS A Momentary switch is used to provide two different modes of operating positions as given below:  4X2 Mode  Auto mode The ECU will control mode shifts between 4X4 (AUTO) and 4X2 by receiving a non-latching mode switch request. When shifting between 4X2 to 4X4 (AUTO) mode the ECU will utilize the TOD clutch for synchronization of the front propeller shaft and axle, and activate the front axle disconnect unit to connect the front axle to the driveline. The Front Axle Disconnect (FAD) feedback line is used to indicate the completion of the shift. When shifting from 4X4 (AUTO) to 4X2 the module will turn off the TOD clutch and releases the front axle disconnect. The Front Axle Disconnect (FAD) feedback line is used to indicate the completion of the shift. Shifts are only allowed when vehicle conditions specified are satisfied. The shift conditions must be met before the shift sequence can begin. The shift conditions are as follows:  The battery voltage must be within the normal operating range.  There is no active ABS/ESP event  No Active Clutch faults  No Active Front Axle Disconnect Faults BENEFITS  Controlled distribution of torque to front and rear axles.  Enhanced vehicle stability and handling capability by interacting with ESP.  No need to drive the vehicle in reverse for disengaging.  Improved fuel economy over full-time 4X4 (2%-4%).