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Home › Nissan-Datsun › 2005 › Altima Base › Repair and Diagnosis › Engine Performance › Engine Control System - Qr25DE › Electrical Load Signal › Diagnostic Procedure

Diagnostic Procedure

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

      Condition Indication
      Rear window defogger switch ON ON
      Rear window defogger switch OFF OFF

      OK or NG

      • OK: GO TO 2.
      • NG: GO TO  3.
      Fig 1: Display Data Monitor Mode Screen
      G02527069Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II 

    Check "LOAD SIGNAL" Indication under the following conditions.

    CONDITION AND INDICATION REFERENCE

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

    OK or NG

    • OK: INSPECTION END 
    • NG: GO TO 4.
    Fig 2: Display Data Monitor Mode Screen
    G02527070Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK REAR WINDOW DEFOGGER SYSTEM 

    Refer to "REAR WINDOW DEFOGGER ".

    : INSPECTION END 

  4. CHECK HEADLAMP SYSTEM 

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

    : INSPECTION END 

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