AIR INTAKE MODE DOES NOT CHANGE [MANUAL AIR CONDITIONER]
AIR INTAKE MODE DOES NOT CHANGE [MANUAL AIR CONDITIONER]
SM2335687
id0703c2700500
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Troubleshooting item |
Air intake mode does not change |
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Description
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• Air intake mode does not change when switching REC/FRESH mode
• No change in wind noise when airflow volume is set to 3 or more even if REC/FRESH switch is operated
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Possible cause
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• Dash-electrical supply unit detects DTC
• Air intake link malfunction
• Air intake actuator malfunction
• Air intake door malfunction
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• When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while performing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, inspect to make sure connectors, terminals and wiring harnesses are connected correctly and undamaged.
Diagnostic Procedure
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Step |
Inspection |
Action |
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1
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PERFORM DASH-ELECTRICAL SUPPLY UNIT DTC INSPECTION
• Perform the dash-electrical supply unit DTC inspection using the M-MDS. (See DTC INSPECTION.)
• Are any DTCs displayed?
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Yes
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Go to the applicable DTC inspection.
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No
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Go to the next step.
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2
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INSPECT AIR INTAKE LINK
• Inspect air intake links. (See BLOWER UNIT DISASSEMBLY/ASSEMBLY [(US)].)
• Are the above items normal?
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Yes
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Go to the next step.
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No
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Apply grease to links.
If any links are damaged, replace malfunctioning part.
Then perform the repair completion verification.
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3
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INSPECT AIR INTAKE ACTUATOR
• Inspect the air intake actuator. (See AIR INTAKE ACTUATOR INSPECTION [MANUAL AIR CONDITIONER].)
• Is it normal?
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Yes
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Inspect the air intake doors, then perform the repair completion verification.
• If any doors are cracked or damaged, replace them.
• If any doors are not installed securely and properly. Install them in proper positions.
• If there are any obstructions, remove them.
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No
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Replace the air intake actuator, then perform the repair completion verification.
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Repair completion verification
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VERIFY THAT MALFUNCTION SYMPTOM DOES NOT RECUR AFTER REPAIR
• Does the air intake mode change smoothly?
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Yes
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Troubleshooting completed.
Explain repairs to customer.
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No
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Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, perform the diagnosis from Step 1.
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