Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Impreza 2001-2002.2004-2007 Approved Subaru Impreza 2004 WRX STi 06. BODY 02. HVAC SYSTEM (AUTO AC) (DIAGNOSTICS) 09. Symptom Related Diagnostic

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                                      SYMPTOM RELATED DIAGNOSTIC
                                                                                                                                                                                  HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)

9. Symptom Related Diagnostic
A: GENERAL DIAGNOSTICS TABLE




                                                                                                                                                                                                                                                                                                     Compartment temperature does not decrease
                                                                                                                                                                                                                                                         Compartment temperature does not increase




                                                                                                                                                                                                                                                                                                                                                                                          Compartment temperature does not quickly
                                                                                                                                                                                                                                                                                                                                                 Compartment temperature is higher than
                                         Symptom




                                                                                                          Illumination does not dim at night.




                                                                                                                                                                                   "Fresh" to "Recirc" or vise versa.




                                                                                                                                                                                                                                                                                                                                                                                                                                       Condenser fan does not operate
                                                                                                                                                Blower motor does not rotate or




                                                                                                                                                                                                                        Air outlet cannot be switched.
                                                        A/C system fails to operate.




                                                                                                                                                                                                                                                                                                                                                 or lower than the set value.
                                                                                                                                                                                                                                                                                                     (No cool air is discharged).
                                                                                                                                                                                   A/C does not change from




                                                                                                                                                                                                                                                         (No hot air is discharged).




                                                                                                                                                                                                                                                                                                                                                                                          respond to the set value.


                                                                                                                                                                                                                                                                                                                                                                                                                                       during A/C operation.
                                                                                                                                                rotates erroneously.
                                                                                       Burned-out fuse.
 Component parts



Fuses (M/B No. 5, F/B No. 17)

Poor connector contacts

Ground

A/C control module

Air mix door actuator and potentiometer (including
links)


Mode door actuator and potentiometer (including
links)


Intake door actuator and potentiometer (including
links)

Blower fan motor

Blower fan relay

A/C relay

Magnet clutch

Radiator fan motors (Main and sub)

Radiator fan relays (Main and sub)

Sensors (In-vehicle, ambient, water temperature,
evaporator, sunload, etc.)                           (Evaporator
                                                     sensor)


In-vehicle sensor aspirator duct

                                                                                                                                                                                                                                                                                                                                                                                                                                     AC-00681




                                                                                                AC-31
                         SYMPTOM RELATED DIAGNOSTIC
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)




                                       AC-32

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