Check Trunk Open Signal

1. Remove electronic key from ignition key cylinder.
2. Check voltage between BCM connector and ground.
   CONNECTOR VOLTAGE CHART
   
   

   Connector	Terminal (Wire color)		Condition	Voltage (V) (Approx.)
   	(+)	(-)
   M4	109 (LG)	Ground	Electronic key: Trunk open switch ON	0 (0.7 Second)
   			Electronic key: Trunk open switch OFF	Battery voltage

OK or NG 

• OK : BCM output signal (trunk open signal) is OK.
• NG : Replace BCM.
  Fig 1: Checking Voltage Between BCM Connector And Ground

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