DTC Diagnosis Procedure

Receives keyfob operation and transmits to BCM.

1. CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL 
   1. Ignition switch OFF.
   2. Check signal between BCM harness connector and ground using oscilloscope.

      (+)		(-)	Condition	Signal (Reference value)
      BCM
      Connector	Terminal
      M18	20	Ground	Waiting (All doors closed)	Courtesy of NISSAN NORTH AMERICA, INC.
      			When signal is received (All doors closed)	Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal?

   YES

   Replace BCM. Refer to Removal and Installation .

   NO

   GO TO 2

2. CHECK REMOTE KEYLESS ENTRY RECEIVER POWER SUPPLY 
   1. Disconnect remote keyless entry receiver connector.
   2. Check signal between remote keyless entry receiver connector and ground with oscilloscope.

      (+)		(-)	Signal (Reference value)
      Remote keyless entry receiver
      Terminals	Terminal
      M120	4	Ground	Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal?

   YES

   GO TO 4

   NO

   GO TO 3

3. CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT 1 
   1. Disconnect BCM connector.
   2. Check continuity between BCM connector and remote keyless entry receiver connector.

      BCM		Remote keyless entry receiver		Continuity
      Connector	Terminal	Connector	Terminal
      M18	19	M120	4	Yes

   3. Check continuity between BCM connector and ground.

      BCM		Ground	Continuity
      Connector	Terminal
      M18	19		No

   Is the inspection result normal?

   YES

   Replace BCM. Refer to Removal and Installation .

   NO

   Repair or replace harness between BCM and remote keyless entry receiver.

4. CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT 

   Check continuity between remote keyless entry receiver connector and ground.

   Remote keyless entry receiver		Ground	Continuity
   Connector	Terminal
   M120	1		Yes

   Is the inspection result normal?

   YES

   GO TO 6

   NO

   GO TO 5

5. CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT 2 

   Check continuity between BCM connector and remote keyless entry receiver connector.

   BCM		Remote keyless entry receiver		Continuity
   Connector	Terminal	Connector	Terminal
   M18	18	M120	1	Yes

   Is the inspection result normal?

   YES

   Replace BCM. Refer to Removal and Installation .

   NO

   Repair or replace harness between BCM and remote keyless entry receiver.

6. CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT 3 
   1. Check continuity between BCM connector and remote keyless entry receiver connector.

      BCM		Remote keyless entry receiver		Continuity
      Connector	Terminal	Connector	Terminal
      M18	20	M120	2	Yes

   2. Check continuity between BCM connector and ground.

      BCM		Ground	Continuity
      Connector	Terminal
      M18	20		No

   Is the inspection result normal?

   YES

   Replace remote keyless entry receiver. Refer to Removal and Installation .

   NO

   Repair or replace harness between BCM and remote keyless entry.