Once you manually moved the seat back, see if it will move forward with the switch. If so the switch is bad. The seat has 4 dc motors, the switches that control these motors are double pole, double throw, center off. If the motor moves in one direction, but not the other, the the control switch is normally the problem. If you own a digital volt meter, you could measure the voltage to the switch. If not, if it moves in one direction and not the other, you have a bad switch.