Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1
   
   
   1. Turn ignition switch OFF.
   2. Check signal between BCM harness connector and ground using oscilloscope.

      (+)		(-)	Condition		Signal (Reference value)
      BCM
      Connector	Terminal
      M19	100, 120	Ground	When the driver door request switch is operated with ignition switch OFF.	When Intelligent Key is in the antenna detection area. (The distance between Intelligent Key and antenna: 80 cm or less.)	Courtesy of NISSAN NORTH AMERICA, INC.
      				When Intelligent Key is not in the antenna detection area. (The distance between Intelligent Key and antenna: Approx. 2 m.)	Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal?

   YES 

   Replace BCM. Refer to REMOVAL AND INSTALLATION .

   NO 

   GO TO STEP 2  .

2. CHECK OUTSIDE KEY ANTENNA CIRCUIT
   
   
   1. Disconnect BCM connector and outside key antenna (LH) connector.
   2. Check continuity between BCM harness connector and outside key antenna (LH) harness connector.

      BCM		Outside key antenna (LH)		Continuity
      Connector	Terminal	Connector	Terminal
      M19	100	D11	1	Yes
      	120		2

   3. Check continuity between BCM harness connector and ground.

      BCM		Ground	Continuity
      Connector	Terminal
      M19	100		No
      	120

   Is the inspection result normal?

   YES 

   GO TO STEP 3  .

   NO 

   Repair or replace harness.

3. CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2
   
   
   1. Replace outside key antenna (LH). (New antenna or other antenna)
   2. Connect BCM connector and outside key antenna (LH) connector.
   3. Check signal between BCM harness connector and ground using oscilloscope.

      (+)		(-)	Condition		Signal (Reference value)
      BCM
      Connector	Terminal
      M19	100, 120	Ground	When the driver door request switch is operated with ignition switch OFF.	When Intelligent Key is in the antenna detection area. (The distance between Intelligent Key and antenna: 80 cm or less.)	Courtesy of NISSAN NORTH AMERICA, INC.
      				When Intelligent Key is not in the antenna detection area. (The distance between Intelligent Key and antenna: Approx. 2 m.)	Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal?

   YES 

   Replace outside key antenna (LH). Refer to REMOVAL AND INSTALLATION .

   NO 

   Replace BCM. Refer to REMOVAL AND INSTALLATION .