Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Forester 1999-2004 Approved Subaru Forester 2003 `03 for3_body_2
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HVAC SYSTEM (AUTO A/C)
(DIAGNOSTICS)
AC
Page
1. Basic Diagnostic Procedure ........................................................................2
2. General Description ....................................................................................3
3. Electrical Components Location..................................................................6
4. A/C Control Module I/O Signal ....................................................................8
5. Self-diagnosis............................................................................................10
6. Diagnostics for A/C System Failure ..........................................................13
7. Diagnostic Procedure for Actuators ..........................................................22
8. Diagnostic Procedure for Sensors ............................................................33
9. Symptom Related Diagnostic....................................................................43
BASIC DIAGNOSTIC PROCEDURE
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
Step Value Yes No
1 START INSPECTIONS. Self-diagnosis operates. Go to step 2. DIAGNOSIS SYS-
2)Perform the self-diagnosis. OPERATE, Diag-
Does the self-diagnosis operate? nostics for A/C
System Failure.>
2 CONFIRM MALFUNCTION PART. Malfunction part can be con- Repair the mal- Go to step 3.
Confirm the malfunction part with self-diagno- firmed. function part
sis. according to each
Can the malfunction part be confirmed? diagnostics chart.
3 CHECK COMPARTMENT TEMPERATURE. Temperature changes. Go to step 4.
4 CHECK A/C SYSTEM RESPONSE. A/C syastem responds. A/C system is OK.
AC-2
GENERAL DESCRIPTION
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
2. General Description B: INSPECTION
Before performing diagnosis, check the following
A: CAUTION items which might affect A/C system problems.
1) Never connect the battery in reverse polarity.
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