DTC 76
id070200804400
DTC 76 |
Rear air mix actuator (potentiometer) (present) |
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POSSIBLE CAUSE
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• Rear air mix actuator malfunction
• Open circuit between rear air mix actuator and front climate control unit
• Short circuit between rear air mix actuator (terminal E) and front climate control unit (terminal 2N: 16-pin)
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Diagnostic Procedure
STEP |
INSPECTION |
ACTION |
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1
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• Inspect rear air mix actuator. (See REAR AIR MIX ACTUATOR INSPECTION.)
• Is it okay?
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Yes
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Go to the next step.
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No
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Replace rear air mix actuator. (See REAR AIR MIX ACTUATOR INSPECTION.)
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2
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• Disconnect driver side and passenger side front air mix actuator connector.
• Disconnect front airflow mode actuator connector.
• Disconnect rear airflow mode actuator connector.
• Disconnect ambient temperature sensor connector.
• Disconnect cabin temperature sensor connector.
• Disconnect front and rear evaporator temperature sensor connector.
• Is resistance between terminals 2N and 2P of front climate control unit connector (16-pin) more than 840 ohms?
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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. (Short circuit)
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3
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• Disconnect front climate control unit connector (16-pin).
• Is resistance between terminals 2B and 2P of front climate control unit connector (16-pin) less than 7.8 kilohms?
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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. (Open circuit)
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4
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• Is resistance between terminals 2B and 2N of front climate control unit connector (16-pin) less than 6.24 kilohms?
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Yes
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Inspect the connection of the front climate control unit connector.
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No
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Repair wiring harness. (Open circuit)
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