Subaru Legacy 2003 Service Manual page 3476

Step
4 CHECK FRESH/RECIRC MODE.
Change FRESH/RECIRC mode by pushing
mode switch.
Is FRESH/RECIRC mode changed?
5 CHECK COMPARTMENT TEMPERATURE.
1) Turn A/C switch ON.
2) Set temperature at 18°C (65°F) (FULL
COOL).
3) Check compartment temperature changes.
Is the compartment temperature changed?
BASIC DIAGNOSTIC PROCEDURE
FRESH/RECIRC mode
changes.
Compartment temperature
changes.
AC-3
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
Value
Go to step 5.
Go to step 6.
Yes No
LHD: <Ref. to AC-
30, FRESH/
RECIRC DOES
NOT CHANGE,
Diagnostics for A/
C System Failure
(LHD Model).>
RHD: <Ref. to AC-
41, FRESH/
RECIRC DOES
NOT CHANGE,
Diagnostics for A/
C System Failure
(RHD Model).>
LHD: <Ref. to AC-
24, COMPART-
MENT TEMPERA-
TURE DOES NOT
CHANGE FROM
"SET" TEMPERA-
TURE OR AIR
CONDITIONING
SYSTEM DOES
NOT RESPOND
QUICKLY, Diag-
nostics for A/C
System Failure
(LHD Model).>
RHD: <Ref. to AC-
44, COMPART-
MENT TEMPERA-
TURE DOES NOT
CHANGE FROM
"SET" TEMPERA-
TURE OR AIR
CONDITIONING
SYSTEM DOES
NOT RESPOND
QUICKLY, Diag-
nostics for A/C
System Failure
(RHD Model).>