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1
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INSPECT CABIN TEMPERATURE SENSOR, AIR MIX ACTUATOR, AND AIRFLOW MODE ACTUATOR FOR OPEN CIRCUIT
• Switch the ignition to off.
• Disconnect the cabin temperature sensor connector.
• Verify the continuity between cabin temperature sensor connector terminal B and body ground.
• Is there continuity?
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Yes
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Go to Step 4.
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No
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Go to the next step.
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2
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INSPECT CABIN TEMPERATURE SENSOR, AIR MIX ACTUATOR, AND AIRFLOW MODE ACTUATOR FOR OPEN CIRCUIT
• Inspect the wiring harness for continuity between climate control unit connector terminal S and body ground.
• Is there continuity?
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Yes
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Repair/replace the malfunctioning vehicle wiring harness.
After repair procedure, go to the next step.
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No
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Go to the next step.
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3
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INSPECT CLIMATE CONTROL UNIT CONNECTOR CONDITION
• Disconnect the climate control unit connector.
• Inspect the connector and terminals (corrosion, damage, pin disconnection).
• Are the connector and terminals normal?
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Yes
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Go to the next step.
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No
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Repair/replace the malfunctioning vehicle wiring harness, connector, or terminal.
After repair procedure, go to the next step.
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4
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VERIFY THAT SAME DTC IS NOT OUTPUT AGAIN
• Reconnect the disconnected connectors.
• Verify DTCs.
• Are DTCs 06, 18, and/or 21 output?
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Yes
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Repeat the inspection from Step 1.
• If the malfunction does not recur, go to the next step.
• If the malfunction recurs, replace the climate control unit.
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No
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Go to the next step.
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5
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VERIFY THAT NO OTHER DTCs ARE PRESENT
• Verify other DTC displayed.
• Are any other DTCs output?
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Yes
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Perform the corresponding DTC inspection.
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No
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DTC trouble shooting completed.
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