Mazda CX-9 Grand Touring 2009 Manual page 1745

POSSIBLE CAUSE
DIAGNOSTIC PROCEDURE
NO.1 INSUFFICIENT AIR (OR NO AIR) BLOWN FROM FRONT VENTS DIAGNOSTIC
PROCEDURE
STEP
INSPECT FRONT AIRFLOW MODE
ACTUATOR
1
Is it okay?
INSPECT TO SEE WHETHER MALFUNCTION
IS IN FRONT VENT MODE OR OTHER MODES
2
Does air blow out when in the front VENT
mode?
INSPECT FRONT VENT
3
Is the front vent clogged?
VERIFY THAT DUCT IN DASHBOARD IS
INSTALLED
4
Is the duct in the dashboard properly installed?
INSPECT TO SEE WHETHER MALFUNCTION
IS IN FRONT HEAT MODE OR FRONT
DEFROSTER MODE
5
Does air blow out when in the front HEAT
mode?
INSPECT FRONT DEFROSTER MODE
6
Does air blow out when in the front
DEFROSTER mode?
INSPECT FRONT VENT
7
Is the vent clogged?
VERIFY THAT DEFROSTER DUCT IS
INSTALLED
8
Is the defroster duct properly installed?
2008 Mazda CX-9 Grand Touring
2008 HVAC Symptom Troubleshooting (HVAC) - Mazda CX-9
Malfunction in front VENT mode system
Malfunction in front HEAT mode system
Malfunction in front DEFROSTER mode system
INSPECTION ACTION
Yes Go to the next step.
Repair or replace malfunctioning part
No
in accordance with inspection result.
Yes Go to Step 5.
No Go to the next step.
Yes Remove obstruction, then go to Step 9.
No Go to the next step.
Inspect the duct for clogging,
Yes deformation and air leakage, then go
to Step 9.
Install the duct securely in the proper
No
position, then go to Step 9.
Yes Go to the next step.
Inspect the vent for clogging, then go
No
to Step 9.
Operation is normal. Recheck
Yes
malfunction symptoms.
No Go to the next step.
Yes Remove obstruction, then go to Step 9.
No Go to the next step.
Inspect the duct for clogging,
Yes deformation, and air leakage, then go
to the next step.
Install the duct securely in proper
No
position, then go to the next step.