DTC 19, 22
id070200812300
DTC 19, 22 |
Air mix actuator, airflow mode actuator (+5 V power supply) system inspection |
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POSSIBLE CAUSE
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• Open circuit in wiring harness between A/C amplifier connector terminal 2P and airflow mode actuator connector terminal A
• Short to ground in wiring harness between A/C amplifier connector terminal 2P and airflow mode actuator connector terminal A
• Short to ground in wiring harness between A/C amplifier connector terminal 2P and air mix actuator connector terminal C (L.H.D.), A (R.H.D.)
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Diagnostic Procedure
STEP |
INSPECTION |
ACTION |
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1
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INSPECT +5 V POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT
• Disconnect the A/C amplifier connector (16-pin) and the airflow mode actuator connector.
• Is there continuity between A/C amplifier connector (16-pin) terminal 2P and airflow mode actuator connector terminal A?
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Yes
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Go to the next step.
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No
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Repair the wiring harness.
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2
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INSPECT +5 V POWER SUPPLY CIRCUIT FOR SHORT TO GROUND
• Is there a short circuit to ground in the wiring harness between A/C amplifier connector (16-pin) terminal 2P and airflow mode actuator connector terminal A?
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Yes
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Repair the wiring harness.
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No
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Go to the next step.
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3
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INSPECT +5 V POWER SUPPLY CIRCUIT FOR SHORT TO GROUND
• Is there a short circuit to ground in the wiring harness between A/C amplifier connector (16-pin) terminal 2P and air mix actuator connector terminal C (L.H.D.), A (R.H.D.)?
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Yes
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Repair the wiring harness.
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No
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The system is normal at present. (Clear the past malfunction from memory.)
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