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Infiniti
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2004
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FX45
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Repair and Diagnosis
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Transmission
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Automatic Trans
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Diagnosis
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DTC Test Procedures
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DTC P1730: A/T Interlock
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Possible Cause
Possible Cause
Harness or connectors (Solenoid and switch circuit is open or shorted.)
Low coast brake solenoid valve
ATF pressure switch 2