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Home >> Infiniti >> 2011 >> FX50 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door & Lock (Without Automatic Back Door) -- FX35/FX50 >> DTC/Circuit Diagnosis >> Remote Keyless Entry Receiver >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL
    1. Turn ignition switch OFF.
    2. Check signal between remote keyless entry receiver harness connector and ground using oscilloscope.
      SIGNAL REFERENCE CHART

      (+) (-) Condition Signal (Reference value)
      Remote keyless entry receiver
      Connector Terminal
      M104 2 Ground Waiting (All door closed)
      G04888196
      When signal is received (All door closed)
      G04888197

      Is the inspection result normal? 

      YES: GO TO  3.

      NO: GO TO 2.

  2. CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT 1
    1. Disconnect BCM connector and remote keyless entry receiver connector
    2. Check continuity between BCM harness connector and remote keyless entry receiver harness connector.
      CONTINUITY REFERENCE CHART

      BCM Remote keyless entry receiver Continuity
      Connector Terminal Connector Terminal
      M122 83 M104 2 Existed
    3. Check continuity between BCM harness connector and ground.
      CONTINUITY REFERENCE CHART

      BCM Ground Continuity
      Connector Terminal
      M122 83 Not existed

      Is the inspection result normal? 

      YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness.

  3. CHECK REMOTE KEYLESS ENTRY RECEIVER POWER SUPPLY
    1. Disconnect remote keyless entry receiver.
    2. Check voltage between remote keyless entry receiver harness connector and ground.
      VOLTAGE REFERENCE CHART

      (+) (-) Voltage (V) (Approx.)
      Remote keyless entry receiver
      Connector Terminal
      M104 4 Ground Battery voltage

      Is the inspection result normal? 

      YES: GO TO  5.

      NO: GO TO 4.

  4. CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT 2
    1. Disconnect BCM connector.
    2. Check continuity between BCM harness connector and remote keyless entry receiver harness connector.
      CONTINUITY REFERENCE CHART

      BCM Remote keyless entry receiver Continuity
      Connector Terminal Connector Terminal
      M122 103 M104 4 Existed
    3. Check continuity between BCM harness connector and ground.
      CONTINUITY REFERENCE CHART

      BCM Ground Continuity
      Connector Terminal
      M122 103 Not existed

      Is the inspection result normal? 

      YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness.

  5. CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT

    Check continuity between remote keyless entry receiver harness connector and ground.

    CONTINUITY REFERENCE CHART

    Remote keyless entry receiver Ground Continuity
    Connector Terminal
    M104 1 Existed

    Is the inspection result normal? 

    YES: Replace remote keyless entry receiver. Refer to "REMOVAL AND INSTALLATION ".

    NO: GO TO 6.

  6. CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT 3
    1. Disconnect BCM connector.
    2. Check continuity between BCM harness connector and remote keyless entry receiver harness connector.
      CONTINUITY REFERENCE CHART

      BCM Remote keyless entry receiver Continuity
      Connector Terminal Connector Terminal
      M123 137 M104 1 Existed

      Is the inspection result normal? 

      YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness.

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