Mode Door Motor

SYSTEM DESCRIPTION

Component Parts
Mode door control system components are:
1. Auto amp.
2. Mode door motor (LCU)
3. In-vehicle sensor
4. Ambient sensor
5. Sunload sensor
6. Intake sensor




System Operation
The auto amplifier receives data from each of the sensors. The amplifier sends air mix door and mode door opening angle data to the air mix door motor LCU and mode door motor LCU.

The air mix door motor and mode door motor read their respective signals according to the address signal. Opening angle indication signals received from the auto amplifier and each of the motor position sensors are compared by the LCUs in each motor with the existing decision and opening angles. Subsequently, HOT/COLD or DEFROST/VENT operation is selected. The new selection data is returned to the auto amplifier.

Mode Door Control Specification:

COMPONENT DESCRIPTION
The mode door motor is attached to the heater unit. It rotates so that air is discharged from the outlet set by the auto amplifier. Motor rotation is conveyed to a link which activates the mode door.