Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

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 Output Signal

      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. 

   Fig 2: Checking Keyless Entry Receiver 5-Volt Circuit

   Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal? 

   YES: GO TO 3

   NO: GO TO  4

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. 

   Fig 3: Checking Keyless Entry Receiver Ground Circuit Continuity

   Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal? 

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

   NO: GO TO 4

4. HARNESS INSPECTION BETWEEN INTELLIGENT KEY UNIT 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. 

      Fig 4: Checking Continuity Between Remote Keyless Entry Receiver Connector M120 Terminals 1, 2, 4 And Ground

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

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

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