Check Remote Keyless Entry Receiver

1. Turn ignition switch OFF.
2. Check remote keyless entry receiver connector M98 terminal 2 (L) and ground signal with oscilloscope.
   BCM CONNECTOR TERMINAL VOLTAGE SPECIFICATIONS
   
   

   Connector	Terminal (Wire color)		Condition of keyfob	Voltage (Reference value)
   	(+)	(-)
   M98	2	Ground	No function
   			Any button is pressed

   Fig 1: Identifying Remote Keyless Entry Receiver Connector M98 Terminal 2 (L) And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK : Remote keyless entry receiver circuit is OK.

NG : GO TO 2.

1. Disconnect remote keyless entry receiver connector.
2. Check voltage between remote keyless entry receiver connector M98 terminal 4 (R) and ground.

   4 (Y) - Ground : Approx. 4.5V 

   Fig 2: Identifying Voltage Between Remote Keyless Entry Receiver Connector M98 Terminal 4 (R) And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK : GO TO  4.

NG : GO TO 3.

1. Disconnect BCM connector.
2. Check continuity between remote keyless entry receiver connector M78 terminal 4 (R) and BCM connector M1 terminal 19 (R).

   4 (R) - 19 (R) : Continuity should exist. 

3. Check continuity between remote keyless entry receiver connector M78 terminal 4 (R) and ground.

   4 (R) - Ground : Continuity should not exist. 

   Fig 3: Identifying Continuity Between Remote Keyless Entry Receiver Connector M78 Terminal 4 (R) And BCM Connector M1 Terminal 19 (R)

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK : Check harness connection.

• If it is OK, replace BCM.
• If it is NG, repair or replace malfunction part.

NG : Repair or replace the harness.

1. Check continuity between remote keyless entry receiver connector M78 terminal 1 (B) and ground.

   1 (B) - Ground : Continuity should exist. 

   Fig 4: Identifying Continuity Between Remote Keyless Entry Receiver Connector M78 Terminal 1 (B) And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG 

OK : GO TO  6.

NG : GO TO 5.

1. Check continuity between remote keyless entry receiver connector M78 terminal 1 (B) and BCM connector M1 terminal 18 (B)

   1 (B) - 18 (B) : Continuity should exist. 

OK or NG 

OK : Check harness connection.

• If it is OK, replace BCM.
• If it is NG, repair or replace malfunction part.

NG : Repair or replace the harness.

Fig 5: Identifying Continuity Between Remote Keyless Entry Receiver Connector M78 Terminal 1 (B) And BCM Connector M1 Terminal 18 (B)

Courtesy of NISSAN MOTOR CO., U.S.A.

1. Check continuity between remote keyless entry receiver connector M78 terminal 2 (Y) and BCM connector M1 terminal 20 (Y).

   2 (Y) - 20 (Y) : Continuity should exist. 

2. Check continuity between remote keyless entry receiver connector M78 terminal 2 (Y) and ground.

   2 (Y) - Ground : Continuity should not exist. 

OK or NG 

OK : Check harness connection.

• If it is OK, replace remote keyless entry receiver.
• If it is NG, repair or replace malfunction part.

NG : Repair or replace harness.

Fig 6: Identifying Continuity Between Remote Keyless Entry Receiver Connector M78 Terminal 2 (Y) And BCM Connector M1 Terminal 20 (Y)

Courtesy of NISSAN MOTOR CO., U.S.A.