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