Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Forester 1999-2004 Approved Subaru Forester 2004 5 - Body HVAC SYSTEM (AUTO AC) (DIAGNOSTICS) Symptom Related Diagnostic

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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

 Auto 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

 Compressor (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 hose

                                                                                                                                                                                                                                                                                                                                                                                                                                 AC-00681




                                                                                                 AC-38



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