Diagnostic Procedure 4

WARNING: This page is about a different car, the 2005 Infiniti QX56. 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

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

Is CONSULT-II screen displayed as above?
1. Yes: GO TO 2.
2. No: GO TO "SYMPTOM MATRIX CHART 1 ".
Fig 1: Identifying "LOCK MODE"
Courtesy of NISSAN MOTOR CO., U.S.A.
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?
1. Yes: System is OK (Now system is escaped from "LOCK MODE"). Clear all codes.
2. No: GO TO 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.

Can the system be initialized?
1. Yes: System is OK.
2. No: GO TO 4.
Fig 2: Displaying "Initialization Fail" Message
Courtesy of NISSAN MOTOR CO., U.S.A.
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?
1. Yes: System is OK. (BCM is malfunctioning. Ref. part No. A )
2. No: ECM is malfunctioning.
  - Replace ECM. Ref. part No. B
  - Perform initialization with CONSULT-II.
    For initialization, refer to "CONSULT-II Operation Manual NATS-IVIS/NVIS".
Fig 3: Displaying "Initialization Fail" Message
Courtesy of NISSAN MOTOR CO., U.S.A.