RAM 1500 Truck 2WD V8-4.7L VIN N (2002)
Blower Motor: Description and Operation
This vehicle blower motor does not controled by a relay.
The blower motor and blower wheel are located in the passenger side end of the HVAC housing, below the glove box. The blower motor controls the
velocity of air flowing through the HVAC housing by spinning a squirrel cage-type blower wheel within the housing at the selected speed. The blower
motor and wheel can be removed from the housing inside the vehicle without removing the dash or HVAC housing assembly.
The blower motor will only operate when the ignition switch is in the ON position, and the A/C Heater mode control switch knob is in any position,
except OFF. The blower motor receives a fused battery feed through the ignition switch in the On position. The blower motor battery feed circuit is
protected by a fuse in the Power Distribution Center (PDC BATT A2) . Blower motor speed is controlled by regulating the ground path through the A/C
Heater control blower motor switch and the blower motor resistor.
The blower motor and blower motor wheel cannot be repaired and, if faulty or damaged, they must be replaced. The blower motor and blower wheel are
serviced only as a unit.
