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Home >> Infiniti >> 2005 >> Q45 >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Body, Lock & Security System >> Remote Keyless Entry System >> Check Remote Keyless Entry Receiver

Check Remote Keyless Entry Receiver

  1. CHECK REMOTE KEYLESS ENTRY RECEIVER POWER SUPPLY CIRCUIT 
    1. Remove electronic key from ignition key cylinder.
    2. Disconnect remote keyless entry receiver connector.
    3. Check the signal between remote keyless entry receiver connector and ground with oscilloscope.
      Fig 1: Connector Terminals Signal Reference Chart
      G02372429Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 2: Checking Signal Between Remote Keyless Entry Receiver Connector And Ground
      G02372430Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO 2.
    2. NG: GO TO  5.
  2. CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL 
    1. Connect remote keyless entry receiver connector.
    2. Check the signal between remote keyless entry receiver connector and ground with oscilloscope.
      Fig 3: Connector Terminals Signal Reference Chart
      G02372431Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 4: Checking Signal Between Remote Keyless Entry Receiver Connector And Ground
      G02372432Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO 3.
    2. NG: GO TO  4.
  3. CHECK REMOTE KEYLESS ENTRY RECEIVER HARNESS 
    1. Disconnect BCM and remote keyless entry receiver connector.
    2. Check continuity between BCM connector M4 terminal 44 and remote keyless entry receiver connector B246 terminal 1.
      1. 44 (Y) - 1 (Y): Continuity should exist. 
    3. Check continuity between BCM connector M4 terminal 44 and ground.
      1. 44 (Y) - Ground: Continuity should not exist. 
      Fig 5: Checking Remote Keyless Entry Receiver Harness
      G02372433Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: Remote keyless entry receiver circuit is OK.
    2. NG: Repair or replace harness.
  4. CHECK REMOTE KEYLESS ENTRY RECEIVER HARNESS 
    1. Disconnect BCM and remote keyless entry receiver connector.
    2. Check continuity between remote keyless entry receiver connector B246 terminal 2 and BCM connector M4 terminal 27.
      1. 27 (BR/W) - 2 (BR/W): Continuity should exist. 
    3. Check continuity between BCM connector M4 terminal 27 and ground.
      1. 27 (BR/W) - Ground: Continuity should not exist. 

    OK or NG 

    1. OK: Replace remote keyless entry receiver.
    2. NG: Repair or replace harness.
    Fig 6: Checking Remote Keyless Entry Receiver Harness
    G02372434Courtesy of NISSAN MOTOR CO., U.S.A.
  5. CHECK REMOTE KEYLESS ENTRY RECEIVER HARNESS 
    1. Disconnect BCM and remote keyless entry receiver connector.
    2. Check continuity between BCM connector M4 terminal 28 and remote keyless entry receiver connector B246 terminal 4.
      1. 28 (L) - 4 (L): Continuity should exist. 
    3. Check continuity between remote keyless entry receiver connector B246 terminal 4 and ground.
      1. 28 (L) - Ground: Continuity should not exist. 

    OK or NG 

    1. OK: Replace BCM.
    2. NG: Repair or replace harness.
    Fig 7: Checking Remote Keyless Entry Receiver Harness
    G02372435Courtesy of NISSAN MOTOR CO., U.S.A.