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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 897 (Body, Lock & Security System) >> NVIS (NISSAN Vehicle Immobilizer System-NATS) >> Diagnostic Procedure 4

Diagnostic Procedure 4

WARNING: This page is about a different car, the 2007 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Self-diagnostic results: 

"LOCK MODE" displayed on CONSULT-II screen 

  1. CONFIRM SELF-DIAGNOSTIC RESULTS 

    Confirm SELF-DIAGNOSTIC RESULTS "LOCK MODE" is displayed on CONSULT-II screen.

    Fig 1: CONSULT-II Display - SELECT DIAG RESULTS
    G04902629Courtesy of NISSAN MOTOR CO., U.S.A.

    Is CONSULT-II screen displayed as shown in  Fig 1 ? 

    YES: GO TO 2.

    NO: GO TO "SYMPTOM MATRIX CHART 1 ".

  2. ESCAPE FROM LOCK MODE 
    1. Turn ignition switch OFF.
    2. Turn ignition switch ON with registered key. (Do not start engine.) Wait 5 seconds.
    3. Return the key to OFF position. Wait 5 seconds.
    4. Repeat steps  2 and  3 twice (total of three cycles).
    5. Start the engine.

    Does engine start? 

    YES: System is OK (Now system is escaped from "LOCK MODE").

    NO: GO TO 3.

  3. PERFORM INITIALIZATION WITH CONSULT-II 

    Perform initialization with CONSULT-II.

    For initialization, refer to "CONSULT-II Operation Manual NATS-IVIS/NVIS".

    NOTE: If the initialization is not completed or malfunctions, CONSULT-II shows the message on the screen.
    Fig 2: CONSULT-II Display - IMMU INITIALIZATION
    G04902626Courtesy of NISSAN MOTOR CO., U.S.A.

    Can the system be initialized? 

    YES: System is OK.

    NO: GO TO 4.

  4. PERFORM INITIALIZATION WITH CONSULT-II AGAIN 
    1. Replace BCM.
    2. Perform initialization with CONSULT-II.

      For initialization, refer to "CONSULT-II Operation Manual NATS-IVIS/NVIS".

    NOTE: If the initialization is not completed or malfunctions, CONSULT-II shows the message on the screen.

    Can the system be initialized? 

    YES: System is OK. BCM is malfunctioning.

    NO:

    • ECM is malfunctioning.
    • Replace ECM.
    • Perform initialization with CONSULT-II.

      For initialization, refer to "CONSULT-II Operation Manual NATS-IVIS/NVIS".

    Fig 3: CONSULT-II Display - IMMU INITIALIZATION
    G04902626Courtesy of NISSAN MOTOR CO., U.S.A.