Pathfinder SE 4WD V6-3.5L (VQ35) (2002)
The air mix door motor is attached to the heater unit. It rotates so that the air mix door is opened or closed to a position set by the auto amplifier. Motor
rotation is then conveyed through a shaft and the air mix door position is then fed back to the auto amplifier by PBR built-in air mix door motor.
Intake Door Motor
SYSTEM DESCRIPTION
Component Parts
Intake door control system components are:
1. Auto amp.
2. Intake door motor
3. A/C LAN system (PBR built-in mode motor and air mix door motor)
4. In-vehicle sensor
5. Ambient sensor
6. Sunload sensor
7. Intake sensor
System Operation
The intake door control determines intake door position based on the ambient temperature, the intake air temperature and the in-vehicle temperature.
When the ECON, DEFROST, or OFF switches are pushed, the auto amplifier sets the intake door at the "Fresh" position.
Intake Door Control Specification