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STEP
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INSPECTION
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ACTION
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1
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INSPECT AIRFLOW MODE CONTROL SYSTEM FROM FRONT CLIMATE CONTROL UNIT
• When airflow mode control dial from front climate control unit is operated, is appropriate resistance felt and can it be moved throughout its full range?
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Yes
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Go to next step.
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No
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Go to Step 1 of troubleshooting index No. 3.
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2
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VERIFY WHETHER MALFUNCTION IS IN VENT MODE OR ANOTHER MODES
• Does air blow out in VENT mode?
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Yes
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Go to Step 5.
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No
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Go to next step.
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3
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INSPECT VENT
• Is vent clogged?
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Yes
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Remove obstruction, then go to Step 9.
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No
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Go to next step.
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4
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VERIFY THAT DUCT IN DASHBOARD IS INSTALLED
• Is duct in dashboard properly installed?
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Yes
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Check duct for clogging, deformation and air leakage, then go to Step 9.
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No
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Install duct securely in the proper position, then go to Step 9.
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5
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VERIFY WHETHER MALFUNCTION IS IN HEAT MODE OR DEFROSTER MODE
• Does air blow out in HEAT mode?
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Yes
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Go to next step.
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No
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Check vent for clogging, then go to Step 9.
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6
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INSPECT DEFROSTER MODE
• Does air blow out in DEFROSTER mode?
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Yes
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Operation is okay. Recheck malfunction symptoms.
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No
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Go to next step.
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7
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INSPECT VENT
• Is vent clogged?
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Yes
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Remove obstruction, then go to Step 9.
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No
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Go to next step.
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8
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VERIFY THAT DEFROSTER DUCT IS INSTALLED
• Is defroster duct properly installed?
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Yes
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Check duct for clogging, deformation, and air leakage, then go to next step.
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No
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Install duct securely in the proper position, then go to next step.
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9
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VERIFY THAT MALFUNCTION SYMPTOM OCCURS AFTER REPAIR
• Does air blow out?
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Yes
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Troubleshooting completed. Explain repairs to customer.
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No
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Recheck malfunction symptoms, then repeat from Step 1 if malfunction recurs.
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