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Home >> Infiniti >> 2010 >> FX50 >> Repair and Diagnosis >> Transmission >> Transfer Case >> Component Diagnosis >> DTC P1809: Transfer Control Unit >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC MALFUNCTION DETECTED CONDITION AND POSSIBLE CAUSES REFERENCE TABLE

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.