2004 Infiniti QX56 AWDFACTORY OEM SERVICE PROCEDURE

Inspection Procedure

CAUTION: If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be detected in self-diagnosis depending on control unit which carry out CAN communication.
  1. Turn ignition switch OFF.
  2. Connect "CONSULT-II" and "CONSULT-II CONVERTER" to data link connector, which is located under LH dash panel near the center console.
  3. Turn ignition switch ON.
    Fig 1: Locating Data Link Connector
    G02691142Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Touch "START (NISSAN BASED VHCL)".
    Fig 2: Display "START (NISSAN BASED VHCL)" On Screen
    G02691143Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Touch "ENGINE".

    If "ENGINE" is not indicated, go to CONSULT-II DATA LINK CONNECTOR (DLC) CIRCUIT .

    Fig 3: Display "ENGINE" On Screen
    G02691144Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Perform each diagnostic test mode according to each service procedure.

    For further information, see the CONSULT-II Operation Manual.Β 

    Fig 4: Display "Select Diagnostic Mode" On Screen
    G02691145Courtesy of NISSAN MOTOR CO., U.S.A.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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