Subaru Legacy 2002 Service Manual page 2785

HVAC System (Heater, Ventilator and A/C)
25. General Diagnostics
A: INSPECTION
Blower motor
Compressor
Cold air not emitted.
Warm air not emitted.
Temperature of air from vents does not change.
Unable to switch blow vents.
Unable to switch suction vents.
GENERAL DIAGNOSTICS
S701278
S701278A10
Symptom
Doesn't move.
Strange noise.
Doesn't move.
Strange noise
Fuse
Blower motor relay
Blower motor
Blower motor resistor
Blower switch
Wire harness
Blower motor
Refrigerant
Fuse
Air conditioning relay
Magnet clutch
Compressor
Pressure switch
A/C switch
Blower switch
Wire harness
V-Belt
Magnet clutch
Compressor
Refrigerant
V-Belt
Magnet clutch
Compressor
Pressure switch
A/C switch
Blower switch
Wire harness
Heater duct
Heater vent duct
Engine coolant
Blower switch
Heater core
Engine coolant
Mode actuator
Wire harness
Mode actuator
Air flow switch
Wire harness
Air inlet select switch
FRESH/RECIRC actuator
Wire harness
AC-52
Repair order