Subaru Forester 2004 - Page 85

AC-31
HVAC SYSTEM (AUTO A/C)(DIAGNOSTIC)
Diagnostic Procedure for Actuators
5 CHECK AIR MIX DOOR ACTUATOR POSI-
TION SWITCH SIGNAL.
1) Connect the connector of auto A/C control
module and air mix door actuator.
2) Turn the ignition switch and AUTO switch to
ON.
3) Check the voltage between auto A/C con-
trol module connector terminals while chang-
ing the setting temperature between maximum
COOL and maximum HOT.
Connector & terminal
(i49) No. 1 (+) — (i48) No. 16 (
− ):
Does the voltage change
between 0.5 (Max. HOT) — 4.5
(Max. COOL) V?
Go to step 6. Replace the air
mix door actuator.
6 CHECK POOR CONTACT.
Check poor contact in auto A/C control module
and connector.
Is there poor contact in con-
nector?
Repair the con-
nector.
Replace the auto
A/C control mod-
ule.
Step Check Yes No