Subaru B9 TRIBECA WX 2007 Manual page 441

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HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
Step
1 START INSPECTIONS.
1) Perform the pre-inspection. <Ref. to
AC(diag)-3, INSPECTION, General Descrip-
tion.>
2) Perform the self-diagnosis. <Ref. to
AC(diag)-10, OPERATION, Diagnostic Chart
for Self-diagnosis.>
2 IDENTIFY MALFUNCTION PART.
Identify the malfunction part with self-diagnosis.
3 CHECK COMPARTMENT TEMPERATURE.
1) Turn on the A/C switch.
2) Turn the temperature control dial at maxi-
mum cool position.
3) Check the compartment temperature
change.
4 CHECK A/C SYSTEM RESPONSE.
Change the temperature setting, and check the
response of A/C system.
Basic Diagnostic Procedure
Check
Does the self-diagnosis oper-
ate?
Can the malfunction part be
confirmed?
Does the compartment temper-
ature change?
Does the A/C system respond
quickly?
AC(diag)-2
Yes No
Go to step 2. <Ref. to AC(diag)-
15, A/C OR SELF-
DIAGNOSIS SYS-
TEMS DO NOT
OPERATE, Diag-
nostics for A/C
System Malfunc-
tion.>
Repair the mal- Go to step 3.
function part in
accordance with
each diagnostic
chart.
Go to step 4.
<Ref. to AC(diag)-
20, COMPART-
MENT TEMPERA-
TURE DOES NOT
CHANGE, OR A/C
SYSTEM DOES
NOT RESPOND
PROMPTLY., Diag-
nostics for A/C
System Malfunc-
tion.>
A/C system is nor- <Ref. to AC(diag)-
mal. 20, COMPART-
MENT TEMPERA-
TURE DOES NOT
CHANGE, OR A/C
SYSTEM DOES
NOT RESPOND
PROMPTLY., Diag-
nostics for A/C
System Malfunc-
tion.>