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Check Inside Key Antenna

  1. CHECK INSIDE KEY ANTENNA FUNCTION

    With CONSULT-III 

    1. Check the operation with ("ANTENNA") in the ACTIVE TEST.
    2. Touch "ROOM ANT1" "ROOM ANT2" "ROOM ANT3" "LUG ANT" on screen.
    3. Carry the Intelligent Key into the antenna detection area.
    INSIDE KEY ANTENNA FUNCTION CHART

    Test item Corresponding antenna
    ROOM ANT1 Inside key antenna instrument center
    ROOM ANT2 Inside key antenna console
    ROOM ANT3 Inside key antenna rear seat
    LUG ANT1 Inside key antenna trunk room

    Do the hazard lamps flash? 

    Yes: Inside key antenna is OK.

    No: GO TO  2.

  2. CHECK INSIDE KEY ANTENNA INPUT SIGNAL 1
    1. Turn ignition switch OFF.
    2. Check signal between Intelligent Key unit connector and ground with oscilloscope.
    SIGNAL REFERENCE CHART

    Terminals Condition Signal (Reference value.)
    (+) (-)
    Intelligent Key unit connector Terminal
    M33 Instrument center 47 Ground Any door is open → close
    G04916787Courtesy of NISSAN MOTOR CO., U.S.A.
    Console 49
    Rear seat 51
    Trunk room 53
    Fig 1: Checking Signal Between Intelligent Key Unit Connector And Ground
    G05212251Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Check the condition of harness and connector.

    NG: GO TO  3.

  3. CHECK INSIDE KEY ANTENNA CIRCUIT
    1. Disconnect Intelligent Key unit and inside key antenna connector.
    2. Check continuity between Intelligent Key unit connector and inside key antenna connector.
      CONTINUITY REFERENCE CHART

      A B Continuity
      Intelligent Key unit connector Terminal Inside key antenna connector Terminal
      M33 47 M83 Instrument center 1 Yes
      48 2
      49 M142 Console 1
      50 2
      51 B45 Rear seat 1
      52 2
      53 B473 Trunk room 1
      54 2
    3. Check continuity between Intelligent Key unit connector and ground.
    Fig 2: Checking Continuity Between Intelligent Key Unit And Inside Key Antenna Connector
    G05212252Courtesy of NISSAN MOTOR CO., U.S.A.
    CONTINUITY REFERENCE CHART

    A Ground Continuity
    Intelligent Key unit connector Terminal
    M33 Instrument center 47 No
    48
    Console 49
    50
    Rear seat 51
    52
    Trunk room 53
    54

    OK or NG 

    OK: GO TO  4.

    NG: Repair or replace harness between Intelligent Key unit and inside key antenna.

  4. CHECK INSIDE KEY ANTENNA INPUT SIGNAL 2
    1. Replace inside key antenna. (New antenna or other antenna)
    2. Connect Intelligent Key unit and inside key antenna connector.
    3. Check signal between Intelligent Key unit connector and ground with oscilloscope.
    SIGNAL REFERENCE CHART

    Terminals Condition Signal (Reference value.)
    (+) (-)
    Intelligent Key unit connector Terminal
    M33 Instrument center 47 Ground Any door is open → close
    G04916787Courtesy of NISSAN MOTOR CO., U.S.A.
    Console 49
    Rear seat 51
    Trunk room 53
    Fig 3: Checking Signal Between Intelligent Key Unit Connector And Ground
    G05212251Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace malfunction inside key antenna.

    NG: Replace Intelligent Key unit.

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