DTC S2.3
id070200811300
DTC S2.3 |
Air mix actuator (potentiometer) |
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POSSIBLE CAUSE
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• Air mix actuator malfunction
• Climate control unit malfunction
• Open circuit between air mix actuator and climate control unit
• Short circuit between air mix actuator (terminal B) and climate control unit (terminal X)
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Diagnostic Procedure
STEP |
INSPECTION |
ACTION |
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1
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• Disconnect air mix actuator connector.
• Disconnect airflow mode actuator connector.
• Is resistance between terminals C and E of air mix actuator as indicated below?
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Yes
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Go to the next step.
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No
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Replace air mix actuator. (See AIR MIX ACTUATOR REMOVAL/INSTALLATION.)
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2
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• Is resistance between terminals B and E of air mix actuator as indicated below?
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Yes
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Go to the next step.
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No
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Replace air mix actuator. (See AIR MIX ACTUATOR REMOVAL/INSTALLATION.)
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3
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• Connect air mix actuator connector.
• Disconnect climate control unit connector.
• Is resistance between terminals U and V of climate control unit as indicated below?
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Yes
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Go to the next step.
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No
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Repair wiring harness.
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4
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• Is resistance between terminals V and X of climate control unit as indicated below?
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Yes
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Replace climate control unit. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION.)
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No
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Repair wiring harness. (Open circuit)
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