Subaru Impreza 2004 Service Manual page 24

HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
Step
16 CHECK CONNECTION OF ASPIRATOR
DUCT.
Make sure the connection of aspirator duct is
correct.
17 CHECK EACH ACTUATOR.
Check the actuators for proper operation using
the self-diagnostic function. <Ref. to AC(diag)-
9, Diagnostics Chart for Self-diagnosis.>
18 CHECK POOR CONTACT.
Check poor contact in A/C control module con-
nector.
Diagnostics for A/C System Malfunction
Is the connection of aspirator
duct correct?
Is the operation of each actua-
tor normal?
Is there poor contact in con-
nector?
AC(diag)-22
Check
Repair the aspira-
tor duct connec-
tion.
Go to step 18.
Repair the con-
nector.
Yes No
Go to step 17.
Check the actuator
and circuit. <Ref.
to AC(diag)-23,
Diagnostic Proce-
dure for Actua-
tors.>
Replace the A/C
control module.