Diagnosis Procedure

1. Turn Ignition Switch ON.
2. Check signal between BCM harness connector and ground using oscilloscope.

   (+)		(-)	Condition		Signal (Reference Value)
   BCM
   Connector	Terminal
   M15	99	Ground	Ignition Switch ON and any door is open	When Intelligent Key is not in the antenna detection area	Courtesy of NISSAN NORTH AMERICA, INC.
   				When Intelligent Key is in the antenna detection area	Courtesy of NISSAN NORTH AMERICA, INC.
   	100			When Intelligent Key is not in the antenna detection area	Courtesy of NISSAN NORTH AMERICA, INC.
   				When Intelligent Key is in the antenna detection area	Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES 

Replace BCM. Refer to REMOVAL AND INSTALLATION .

NO 

GO TO STEP 2  .

1. Turn Ignition Switch OFF.
2. Disconnect BCM connector and Inside Key Antenna (Trunk Room) connector.
3. Check continuity between BCM harness connector and Inside Key Antenna (Trunk Room) harness connector.

   BCM		Inside Key Antenna (Trunk Room)		Continuity
   Connector	Terminal	Connector	Terminal
   M15	99	B71	2	Existed
   	100		1

4. Check continuity between BCM harness connector and ground.

   BCM		Ground	Continuity
   Connector	Terminal
   M15	99		Not existed
   	100

Is the inspection result normal?

YES 

GO TO STEP 3  .

NO 

Repair or replace harness.

1. Replace Inside Key Antenna (Trunk Room). (New antenna or other antenna)
2. Connect BCM connector and Inside Key Antenna (Trunk Room) connector.
3. Turn Ignition Switch ON.
4. Check signal between BCM harness connector and ground using oscilloscope.

   (+)		(-)	Condition		Signal (Reference Value)
   BCM
   Connector	Terminal
   M15	99	Ground	Ignition Switch ON and any door is open	When Intelligent Key is not in the antenna detection area	Courtesy of NISSAN NORTH AMERICA, INC.
   				When Intelligent Key is in the antenna detection area	Courtesy of NISSAN NORTH AMERICA, INC.
   	100			When Intelligent Key is not in the antenna detection area	Courtesy of NISSAN NORTH AMERICA, INC.
   				When Intelligent Key is in the antenna detection area	Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES 

Replace Inside Key Antenna (Trunk Room).

NO 

Replace BCM. Refer to REMOVAL AND INSTALLATION .