Subaru Legacy 2002 Service Manual page 3145

HVAC System (Auto A/C) (Diagnostics)
1. Basic Diagnostic Procedure
A: PROCEDURE
No.
1 START INSPECTIONS.
1) Perform pre-inspection.
2) Perform self-diagnosis. LHD: <Ref. to
AC-28, SELF-DIAGNOSIS MODE, Diagnos-
tics Chart for Diagnosis System (LHD
Model).> RHD: <Ref. to AC-32, SELF-DIAG-
NOSIS MODE, Diagnostics Chart for Diagno-
sis System (RHD Model).>
2 CHECK DTC.
Check DTC.
3 CHECK BLOWER MOTOR OPERATION.
1) Turn blower switch ON.
2) Check blower motor operation.
BASIC DIAGNOSTIC PROCEDURE
S001501E45
Step
S001501
Check
Dose self-diagnosis oper-
ate?
Is DTC indicated?
Is blower motor rotated?
AC-2
Yes
Go to step 2. LHD: <Ref. to
AC-34, A/C
AND/OR SELF-
DIAGNOSIS SYS-
TEM DO NOT
OPERATE, Diag-
nostics for A/C
System Failure
(LHD Model).>
RHD: <Ref. to
AC-46, A/C
AND/OR SELF-
DIAGNOSIS SYS-
TEMS DO NOT
OPERATE, Diag-
nostics for A/C
System Failure
(RHD Model).>
LHD: <Ref. to Go to step 3.
AC-60, Diagnostic
Procedure with
Diagnostic
Trouble Code
(DTC) (LHD
Model).> RHD:
<Ref. to AC-69,
Diagnostic Proce-
dure with Diag-
nostic Trouble
Code (DTC) (RHD
Model).>
Go to step 4. LHD: <Ref. to
AC-36, BLOWER
MOTOR DOES
NOT ROTATE,
Diagnostics for
A/C System Fail-
ure (LHD
Model).> RHD:
<Ref. to AC-48,
BLOWER
MOTOR DOES
NOT ROTATE,
Diagnostics for
A/C System Fail-
ure (RHD
Model).> and
<Ref. to AC-50,
BLOWER
MOTOR
ROTATES
ABNORMALLY,
Diagnostics for
A/C System Fail-
ure (RHD
Model).>
No