Town & Country Van AWD V6-230 3.8L VIN L SMFI (1998)
Air Door Actuator / Motor: Testing and Inspection
Mode Actuator Background
The Mode actuator can move the mode door in two directions. When the voltage at Pin 18 of the control module is high, about 11.5 volts, and the
voltage at Pin 12 is low, about 1.5 volts the door will move towards the Panel position. When Pin 12 is High and Pin 18 is Low the door will move
towards the Defrost position. When both Pin are high or when both Pins are low, the actuator will not move. The Mode door feedback signal is a voltage
signal that is supplied by the actuator to the control. The signal will be about 4.5 volts in the Panel position and 0.5 volts in the Defrost position. As the
position of the Mode actuator changes, so will the feedback signal. The feedback signal is necessary for the correct positioning of the mode door.
