Murano AWD V6-3.5L (VQ35) (2003)
Air Door Actuator / Motor: Description and Operation
Mode Door Motor
SYSTEM DESCRIPTION
Component Parts
Mode door control system components are:
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Unified meter and A/C amp.
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Mode door motor (LCU)
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A/C LAN system (PBR built-in mode motor and air mix door motor)
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In-vehicle sensor
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Ambient sensor
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Sunload sensor
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Intake sensor
System Operation
The unified meter and A/C amp. (auto amp.) receives data from each of the sensors. The amplifier sends air mix door mode door and intake door
opening angle data to the air mix door motor LCU mode door motor LCU and intake door motor LCU.
The air mix door motor mode door motor and intake door motor read their respective signals according to the address signal. Opening angle indication
signals received from the unified meter and A/C amp. (auto amp.) 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 DEFROSTMENT or FRESH/RECIRCULATION operation is selected. The new
selection data is returned to the unified meter and A/C amp.
Mode Door Control Specification
COMPONENT DESCRIPTION