Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM - WITHOUT INTELLIGENT KEY SYSTEM ".

1. CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL
   1. Turn ignition switch OFF.
   2. Check remote keyless entry receiver signal with an oscilloscope.

      Terminals			Keyfob condition	Signal (Reference value)
      (+)		(-)
      Remote keyless entry receiver connector	Terminal
      M120	2	Ground	No function
      			Any button is pressed

      Fig 1: Checking Remote Keyless Entry Receiver Signal Using Oscilloscope

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO 2

      NO: GO TO  4

2. REMOTE KEYLESS ENTRY RECEIVER 5-VOLT CIRCUIT INSPECTION

   Check voltage between remote keyless entry receiver connector M120 terminal 4 and ground.

   4 - Ground: Approx. 5 volt  .

   Is the inspection result normal? 

   YES: GO TO 3

   NO: GO TO  4

   Fig 2: Checking Voltage Between Remote Keyless Entry Receiver Connector M120 Terminal 4 And Ground

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3. REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT INSPECTION

   Check continuity between remote keyless entry receiver connector M120 terminal 1 and ground.

   1 - Ground: Continuity should exist  .

   Is the inspection result normal? 

   YES: Replace remote keyless entry receiver.

   NO: GO TO 4

   Fig 3: Checking Continuity Between Remote Keyless Entry Receiver Connector M120 Terminal 1 And Ground

   Courtesy of NISSAN NORTH AMERICA, INC.
4. HARNESS INSPECTION BETWEEN BCM AND RKE RECEIVER
   1. Disconnect remote keyless entry receiver and BCM connectors.
   2. Check continuity between BCM connector M18 terminals 18, 19, 20 and remote keyless entry receiver connector M120 terminals 1, 2, 4.

      1 - 18: Continuity should exist  .

      2 - 20: Continuity should exist  .

      4 - 19: Continuity should exist  .

   3. Check continuity between remote keyless entry receiver connector M120 terminals 1, 2, 4 and ground.

      1 - Ground: Continuity should not exist  .

      2 - Ground: Continuity should not exist  .

      4 - Ground: Continuity should not exist  .

      Is the inspection result normal? 

      YES: Replace remote keyless entry receiver.

      NO: Repair or replace the harness between the remote keyless entry receiver and BCM.

      Fig 4: Checking Continuity Between BCM Connector M18 And Remote Keyless Entry Receiver Connector M120 Terminals

      Courtesy of NISSAN NORTH AMERICA, INC.