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Home >> Infiniti >> 2013 >> FX37 Base, AWD >> Repair and Diagnosis >> Transmission >> Transfer Case >> DTC/Circuit Diagnosis >> DTC P1809: Transfer Control Unit >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC Display item Malfunction detected condition Possible cause
P1809 CONTROL UNIT 4 Malfunction has occurred inside AWD control unit. AD converter system of transfer control unit is malfunctioning.
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