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
      M25	2	Ground	No function
      			Any button is pressed

      Fig 1: Checking Remote Keyless Entry Receiver Output Signal Using Oscilloscope

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO 2

      NO: GO TO  5

2. REMOTE KEYLESS ENTRY RECEIVER VOLTAGE CIRCUIT INSPECTION 

   Check voltage between remote keyless entry receiver connector M25 terminal 3 and ground using an oscilloscope.

   Terminals			Signal (Reference value)
   (+)		(-)
   Remote keyless entry receiver connector	Terminal
   M25	3	Ground

   Fig 2: Checking Remote Keyless Entry Receiver Voltage Using Oscilloscope

   Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal? 

   YES: GO TO 3

   NO: GO TO  5

3. REMOTE KEYLESS ENTRY RECEIVER 5-VOLT CIRCUIT INSPECTION 

   Check voltage between remote keyless entry receiver connector M25 terminal 4 and ground.

   4 - Ground: Approx. 5 volt. 

   Is the inspection result normal? 

   YES: GO TO 4

   NO: GO TO  5

   Fig 3: Checking Remote Keyless Entry Receiver 5-Volt Circuit

   Courtesy of NISSAN NORTH AMERICA, INC.
4. REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT INSPECTION 

   Check continuity between remote keyless entry receiver connector M25 terminal 1 and ground.

   1 - Ground: Continuity should exist. 

   Fig 4: Checking Remote 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 "EXPLODED VIEW ".

   NO: GO TO 5

5. HARNESS INSPECTION BETWEEN INTELLIGENT KEY UNIT AND RKE RECEIVER 
   1. Disconnect remote keyless entry receiver and Intelligent Key unit connectors.
   2. Check continuity between Intelligent Key unit connector (A) M70 terminals 8, 9, 21, 30 and remote keyless entry receiver connector (B) M25 terminals 1, 2, 3, 4.

      1 - 8: Continuity should exist. 

      2 - 9: Continuity should exist. 

      3 - 21: Continuity should exist. 

      4 - 30: Continuity should exist. 

   3. Check continuity between remote keyless entry receiver connector (B) M25 terminals 1, 2, 3, 4 and ground.

      1 - Ground: Continuity should not exist. 

      2 - Ground: Continuity should not exist. 

      3 - Ground: Continuity should not exist. 

      4 - Ground: Continuity should not exist. 

      Fig 5: Checking Harness Between Intelligent Key Unit & RKE Receiver

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: Remote keyless entry receiver circuits are OK.

      NO: Repair or replace the harness between the remote keyless entry receiver and Intelligent Key unit.