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Home >> Infiniti >> 2018 >> Q70 5.6 Luxe, RWD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door Lock (DTC/Circuit Diagnosis) (Except Hybrid) >> DTC/Circuit Diagnosis >> Remote Keyless Entry Receiver >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK BCM SIGNAL 1 
    1. Turn Ignition Switch OFF.
    2. Disconnect Remote Keyless Entry Receiver connector.
    3. Check voltage between Remote Keyless Entry Receiver harness connector and ground.

      (+)

      (-)

      Voltage (V)

      (Approx.)

      Remote Keyless Entry Receiver

      Connector

      Terminal

      M104

      4

      Ground

      5

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    GO TO 2.

  2. CHECK REMOTE KEYLESS ENTRY RECEIVER POWER SUPPLY CIRCUIT 
    1. Disconnect BCM connector.
    2. Check continuity between BCM harness connector and Remote Keyless Entry Receiver harness connector.

      BCM

      Remote Keyless Entry Receiver

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M123

      110

      M104

      4

      Existed
    3. Check continuity between BCM harness connector and ground.

      BCM

      Ground

      Continuity

      Connector

      Terminal

      M123

      110

      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. Reconnect Remote Keyless Entry Receiver connector.
    2. Check signal between Remote Keyless Entry Receiver harness connector and ground using oscilloscope.

      (+)

      (-)

      Signal

      (Reference value)

      Remote Keyless Entry Receiver

      Connector

      Terminal

      M104

      4

      Ground
      GNSJMKIA3838GB-838Courtesy of NISSAN NORTH AMERICA, INC.

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Replace Remote Keyless Entry Receiver. Refer to Removal and Installation .

  4. CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT 
    1. Disconnect BCM connector.
    2. Disconnect Remote Keyless Entry Receiver connector.
    3. Check continuity between BCM harness connector and Remote Keyless Entry Receiver harness connector.

      BCM

      Remote Keyless Entry Receiver

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M120

      18

      M104

      1

      Existed
    4. Check continuity between BCM harness connector and ground.

      BCM

      Ground

      Continuity

      Connector

      Terminal

      M120

      18

      Not existed

    Is the inspection result normal?

    YES

    GO TO 5.

    NO

    Repair or replace harness.

  5. CHECK BCM SIGNAL 2 
    1. Reconnect BCM connector.
    2. Check voltage between Remote Keyless Entry Receiver harness connector and ground.

      (+)

      (-)

      Voltage (V)

      (Approx.)

      Remote Keyless Entry Receiver

      Connector

      Terminal

      M104

      2

      Ground

      5

    Is the inspection result normal?

    YES

    GO TO 7.

    NO

    GO TO 6.

  6. CHECK REMOTE KEYLESS ENTRY RECEIVER SIGNAL CIRCUIT 
    1. Disconnect BCM connector.
    2. Check continuity between BCM harness connector and Remote Keyless Entry Receiver harness connector.

      BCM

      Remote Keyless Entry Receiver

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M123

      71

      M104

      2

      Existed
    3. Check continuity between BCM harness connector and ground.

      BCM

      Ground

      Continuity

      Connector

      Terminal

      M123

      71

      Not existed

    Is the inspection result normal?

    YES

    Replace BCM. Refer to Removal and Installation .

    NO

    Repair or replace harness.

  7. CHECK REMOTE KEYLESS ENTRY RECEIVER SIGNAL 
    1. Reconnect Remote Keyless Entry Receiver connector.
    2. Check signal between Remote Keyless Entry Receiver harness connector and ground using oscilloscope.

      (+)

      (-)

      Condition

      Signal

      (Reference value)

      Remote Keyless Entry Receiver

      Connector

      Terminal

      M104

      2

      Ground

      During waiting
      GNSJMKIA0064GB-064Courtesy of NISSAN NORTH AMERICA, INC.

      When operating either button on the Intelligent Key
      GNSJMKIA0065GB-065Courtesy of NISSAN NORTH AMERICA, INC.

    Is the inspection result normal?

    YES

    GO TO 8.

    NO

    Replace Remote Keyless Entry Receiver. Refer to Removal and Installation .

  8. CHECK BCM SIGNAL 3 
    1. Disconnect Remote Keyless Entry Receiver connector.
    2. Check voltage between Remote Keyless Entry Receiver harness connector and ground.

      (+)

      (-)

      Voltage (V)

      (Approx.)

      Remote Keyless Entry Receiver

      Connector

      Terminal

      M104

      3

      Ground

      5

    Is the inspection result normal?

    YES

    GO TO 10.

    NO

    GO TO 9.

  9. CHECK REMOTE KEYLESS ENTRY RECEIVER RSSI SIGNAL CIRCUIT 
    1. Disconnect BCM connector.
    2. Check continuity between BCM harness connector and Remote Keyless Entry Receiver harness connector.

      BCM

      Remote Keyless Entry Receiver

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M120

      22

      M104

      3

      Existed
    3. Check continuity between BCM harness connector and ground.

      BCM

      Ground

      Continuity

      Connector

      Terminal

      M120

      22

      Not existed

    Is the inspection result normal?

    YES

    Replace BCM. Refer to Removal and Installation .

    NO

    Repair or replace harness.

  10. CHECK REMOTE KEYLESS ENTRY RECEIVER RSSI SIGNAL 
    1. Reconnect Remote Keyless Entry Receiver connector.
    2. Check signal between Remote Keyless Entry Receiver harness connector and ground using oscilloscope.

      (+)

      (-)

      Condition

      Signal

      (Reference value)

      Remote Keyless Entry Receiver

      Connector

      Terminal

      M104

      3

      Ground

      During waiting
      GNSJMKIA5952GB-952Courtesy of NISSAN NORTH AMERICA, INC.

      When pressing and holding either button on Intelligent Key
      GNSJMKIA5953GB-953Courtesy of NISSAN NORTH AMERICA, INC.

    Is the inspection result normal?

    YES

    GO TO 11.

    NO

    Replace Remote Keyless Entry Receiver. Refer to Removal and Installation .

  11. CHECK INTERMITTENT INCIDENT 

    Refer to Intermittent Incident .

    INSPECTION END

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