if you can get the actuator off the t-case, then leave it plugged in and have someone hit the 4x and 2x switches. if the motor turns, then the problem is inside the t-case. if the motor doesn't turn, then check to see if the motor will turn by hand. if it can turn by hand, then the motor is not likely the issue. i *think* the GEM is up in the dash on the driver's side.