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Home >> Infiniti >> 2005 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> Electrical Load Signal >> Diagnostic Procedure
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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.
      REAR WINDOW DEFOGGER SWITCH CONDITION - INDICATION

      Condition Indication
      Rear window defogger switch: ON ON
      Rear window defogger switch: OFF OFF
      Fig 1: CONSULT-II Display - "LOAD SIGNAL"
      G02389439Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO 2.
    2. NG: GO TO  3.
  2. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II 

    Check "LOAD SIGNAL" indication under the following conditions.

    LIGHTING SWITCH CONDITION - INDICATION

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

    OK or NG 

    1. OK: INSPECTION END 
    2. NG: GO TO  4.
    Fig 2: CONSULT-II Display - "LOAD SIGNAL"
    G02389440Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK REAR WINDOW DEFOGGER SYSTEM 

    Refer to "REAR WINDOW DEFOGGER ".

    1. : INSPECTION END 
  4. CHECK HEADLAMP SYSTEM 

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

    1. : INSPECTION END 
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