LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2011 >> M56 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 258 (Transfer Case) >> DTC/Circuit Diagnosis >> DTC P1809: Transfer Control Unit >> DTC Logic >> DTC Confirmation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Confirmation Procedure

WARNING: This page is about a different car, the 2013 Infiniti M56 and 2013 Infiniti M37. However, it is still accessible from the selected car via links, so may be relevant.
  1. DTC REPRODUCTION PROCEDURE 

    With CONSULT 

    1. Turn the ignition switch ON.
    2. Perform self-diagnosis for "ALL MODE AWD/4WD".

    Is DTC "P1809" detected? 

    YES: Proceed to diagnosis procedure. Refer to "DIAGNOSIS PROCEDURE ".

    NO: INSPECTION END.

scientia non olet · About LEMON Manuals