LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2012 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 111 (EV Control System) >> DTC/Circuit Diagnosis >> DTC P3178: Ecu Activation Error >> 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 2011 Nissan Leaf. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Before performing the following procedure, confirm that 12V battery voltage is more than 11 V.
  1. PERFORM DTC CONFIRMATION PROCEDURE-I
    1. Turn power switch OFF and wait at least 60 seconds.
    2. Set the vehicle to READY and wait at least 200 seconds.
    3. Check DTC.

    Is DTC detected? 

    YES: Proceed to "DIAGNOSIS PROCEDURE ".

    NO: Go to 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE-II
    1. Turn power switch OFF and wait at least 60 seconds.
    2. Make sure that the charging status indicator does not illuminate.
    3. Connect normal charge connector (with AC power input) and wait at least 20 seconds.
    4. Check DTC.

    Is DTC detected? 

    YES: Proceed to "DIAGNOSIS PROCEDURE ".

    NO: Go to 3.

  3. PERFORM DTC CONFIRMATION PROCEDURE-III
    1. Turn power switch OFF and wait at least 60 seconds.
    2. Make sure that the charging status indicator does not illuminate.
    3. Connect quick charge connector.
    4. Start quick charging and wait at least 20 seconds.
    5. Check DTC.

    Is DTC detected? 

    YES: Proceed to "DIAGNOSIS PROCEDURE ".

    NO: INSPECTION END

scientia non olet · About LEMON Manuals