Transfer Case

The 233/244 Electronic Transfer Case is a conventional transfer case that uses a shift motor to place the transfer case into the desired range. A multi-position switch selector is located on the dash panel in place of a manual shift lever located on the floor. The Transfer Case shift motor is a bi-directional, 2-wire motor. When the motor is energized, one of the leads is 12-volts and the other is ground. Reversing the polarity of the motor changes the direction of the rotation of the motor. The motor has a low speed, high torque output.

The Transfer Case Mode Sensor consists of a magnetic ring and four Hall Effect transistors that convert the shaft position into a coded signal sent to the TCCM. The magnet forces the output of the Hall device low when it is passed over it. The Mode Sensor is supplied 5 volts and a ground from the TCCM and has four output lines that feed back to the TCCM.

The Transfer Case Selector Switch is a multi-position, multi-resistance switch that tells the TCCM what range is commanded. The switch assembly also contains a separate Neutral button and four indicators, one for each selectable range.