Check Outside Key Antenna

1. Turn ignition switch OFF.
2. Check signal between Intelligent Key unit connector and ground with oscilloscope.

Connector	Item	Terminal (wire color)		Condition	Signal (Reference value)
		(+)	(-)
M75	Rear bumper	17 (W/L)	Ground	Request switch is pushed
	Driver side	19 (P)
	Passenger side	37 (LG)

Fig 1: Identifying Signal Between Intelligent Key Unit Connector And Ground

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

OK or NG

• OK: Outside key antenna is OK.
• NG: GO TO 2.

1. Disconnect Intelligent Key unit connector and outside key antenna connector.
2. Check continuity between each outside key antenna harness connector D13 (driver side), D41 (passenger side), B131 (rear bumper) terminals 1, 2 and Intelligent Key unit harness connector M75 terminals 17, 18, 19, 20, 37, and 38.
   TERMINALS CONTINUITY REFERENCE
   
   

   Item	Connector	Terminal (Wire color)	Connector	Terminal (Wire color)	Continuity
   Rear bumper	B131	1 (W)	M75	17 (W/L)	Yes
   		2 (B)		18 (W/R)
   Driver side	D13	1 (P)		19 (P)
   		2 (PU)		20 (PU)
   Passenger side	D41	1 (LG)		37 (LG)
   		2 (B/Y)		38 (BR/W)

   Fig 2: Identifying Continuity Between Each Outside Key Antenna Harness Connector Terminals 1, 2 And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check continuity between each outside key antenna harness connector terminals 1, 2 and ground.
   TERMINALS CONTINUITY REFERENCE
   
   

   Item	Connector		Terminal	Continuity
   Rear bumper	B131	1 (W)	Ground	No
   		2 (B)
   Driver side	D13	1 (P)
   		2 (PU)
   Passenger side	D41	1 (LG)
   		2 (B/Y)

   OK or NG

   • OK: GO TO 3.
   • NG: Replace harness between outside key antenna and Intelligent Key unit.

1. Replace outside key antenna. (New antenna or other antenna)
2. Connect Intelligent Key unit connector and outside key antenna connector.
3. Check signal between Intelligent Key unit connector and ground with oscilloscope.
   TERMINALS SIGNALS REFERENCE
   
   

   Connector	Item	Terminal (wire color)		Condition	Signal (Reference value)
   		(+)	(-)
   M75	Rear bumper	17 (W/L)	Ground	Request switch is pushed
   	Driver side	19 (P)
   	Passenger side	37 (LG)

   Fig 3: Identifying Signal Between Intelligent Key Unit Connector And Ground

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

   OK or NG

   • OK: Replace outside key antenna.
   • NG: Replace Intelligent Key unit.