2004 Infiniti QX56 AWDFACTORY OEM SERVICE PROCEDURE

Diagnostic Procedure

  1. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I 
    1. Turn ignition switch ON.
    2. Connect CONSULT-II and select "DATA MONITOR" mode.
    3. Select "LOAD SIGNAL" and check indication under the following conditions.
    INDICATION CHECKING CONDITION

    Condition Indication
    Lighting switch ON at 2nd position ON
    Lighting switch OFF OFF

    OK or NG

    OK: INSPECTION END 

    NG: GO TO 2.

    Fig 1: Identifying Data Monitor Display
    G02691946Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK HEADLAMP SYSTEM 

    Refer to HEADLAMP (FOR USA) , or HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM .

    : INSPECTION END 

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:

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

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