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Nissan-Datsun
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2004
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Altima Base, Automatic
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Repair and Diagnosis
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Transmission
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Automatic Trans
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Automatic Transaxle
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DTC P0731 A/T 1ST Gear Function
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Possible Cause
Possible Cause
Check the following items.
Shift solenoid valve A
Shift solenoid valve B
Each clutch
Hydraulic control circuit