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HOMESERVICE MANUALSINFINITI2006FX35 AWDREPAIR AND DIAGNOSISBODY & FRAMEEXTERIOR BODY PANELSBODY, LOCK & SECURITY SYSTEMINTELLIGENT KEY SYSTEMCHECK INSIDE KEY ANTENNA
2006 Infiniti FX35 AWD

Check Inside Key Antenna

2006 Infiniti FX35 AWDSECTION Check Inside Key Antenna
  1. CHECK INSIDE KEY ANTENNA POWER SUPPLY CIRCUIT 

    Push ignition knob and use an oscilloscope to check voltage waveform between Intelligent Key unit connector M34 terminals 13 (luggage room), 15 (dash board), 35 (dash board) and ground.

    VOLTAGE SPECIFICATIONS

    Terminal (Wire color) Condition Signal (Reference value)
    (+) (-)
    Luggage room:
    13 (P)    		 Ground Push ignition knob.
    G04077024
    Dash board:
    15 (G)
    35 (LG)
    Fig 1: Identifying Inside Key Antenna Power Supply Circuit
    G04077072Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK : GO TO 2.

    NG : GO TO  3.

  2. CHECK INSIDE KEY ANTENNA OPERATION 
    1. Disconnect inside key antenna connector.
    2. Check continuity between inside key antenna connector M70, M153 (dash board), B68 (luggage room) terminals 1 and 2.

      1 - 2 : Continuity should exist. 

    OK or NG 

    OK : GO TO 3.

    NG : Replace malfunctioning inside key antenna.

    Fig 2: Identifying Continuity Between Inside Key Antenna Connector M70, M153 (Dash Board), B68 (Luggage Room) Terminals 1 And 2
    G04077073Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK INSIDE KEY ANTENNA 
    1. Disconnect Intelligent Key unit connector.
    2. Check continuity between inside key antenna connector M70, M153 (dash board), B68 (luggage room) terminals 1, 2 and Intelligent Key unit connector terminals 13, 14, 15, 16, 35 and 36.
      CONTINUITY SPECIFICATIONS

      Item Terminal Continuity
      Inside key antenna-3 (Luggage room) 1 (OR/L) 13 (P) Yes
      2 (W/L) 14 (L)
      Inside key antenna-1 (Dash board) 1 (G) 15 (G)
      2 (R) 16 (R)
      Inside key antenna-2 (Dash board) 1 (LG) 35 (LG)
      2 (PU) 36 (PU)
    3. Check continuity between inside key antenna connector M70, M153 (dash board), B68 (luggage room) terminals 1 and 2 and ground.
      CONTINUITY SPECIFICATIONS

      Item Terminal Continuity
      Inside key antenna-3 (Luggage room) 1 (OR/L) Ground No
      2 (W/L)
      Inside key antenna-1 (Dash board) 1 (G)
      2 (R)
      Inside key antenna-2 (Dash board) 1 (LG)
      2 (PU)
      Fig 3: Identifying Continuity Between Inside Key Antenna Connector M70, M153, B68 Terminals 1, 2 And Intelligent Key Unit Connector Terminals
      G04077074Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK : Replace Intelligent Key unit.

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

RENDER: 1.0x

NO RELATED

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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.