Diagnosis Procedure

1. Turn ignition switch OFF.
2. Check signal between BCM harness connector and ground using oscilloscope.

   (+)		(-)	Condition	Signal (Reference value)
   BCM
   Connector	Terminal
   M71	84, 85	Ground	When Intelligent Key is in the antenna detection area	Courtesy of NISSAN NORTH AMERICA, INC.
   			When Intelligent Key is not 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. Disconnect BCM connector and inside key antenna (instrument center) connector.
2. Check continuity between BCM harness connector and inside key antenna (instrument center) harness connector.

   BCM		Inside key antenna (instrument center)		Continuity
   Connector	Terminal	Connector	Terminal
   M71	84	M105	1	Existed
   	85		2

3. Check continuity between BCM harness connector and ground.

   BCM		Ground	Continuity
   Connector	Terminal
   M71	84		Not existed
   	85

Is the inspection result normal?

YES 

GO TO STEP 3  .

NO 

Repair or replace harness.

1. Replace inside key antenna (instrument center). (New antenna or other antenna)
2. Connect BCM connector and inside key antenna (instrument center) connector.
3. Check signal between BCM harness connector and ground using oscilloscope.

   (+)		(-)	Condition	Signal (Reference value)
   BCM
   Connector	Terminal
   M71	84, 85	Ground	When Intelligent Key is in the antenna detection area	Courtesy of NISSAN NORTH AMERICA, INC.
   			When Intelligent Key is not in the antenna detection area	Courtesy of NISSAN NORTH AMERICA, INC.

Is the inspection result normal?

YES 

Replace inside key antenna (instrument center).

NO 

Replace BCM. Refer to REMOVAL AND INSTALLATION .