Check Outside Key Antenna

WARNING: This page is about a different car, the 2008 Infiniti FX45 and 2008 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK OUTSIDE KEY ANTENNA POWER SUPPLY

Push each door request switch, and use an oscilloscope to check voltage waveform of harness between Intelligent Key unit connector M34 terminals 17 (back door), 19 (driver and rear LH door), and 37 (passenger and rear RH door) and ground.

Fig 1: Identifying Outside Key Antenna Power Supply

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

OUTSIDE KEY ANTENNA POWER SUPPLY

Terminal (Wire color)		Condition	Signal (Reference value)
(+)	(-)	Condition	Signal (Reference value)
Back door: 17 (L)	Ground	Push each door request switch	Courtesy of NISSAN MOTOR CO., U.S.A.
Driver, rear LH: 19 (SB)
Passenger, rear RH 37 (G)

OK or NG

OK: GO TO 2.

NG: GO TO 3.

CHECK OUTSIDE KEY ANTENNA OPERATION
1. Disconnect each outside key antenna connector.
2. Check the following.
  - Check continuity between door mirror (outside key antenna) connector D2 (driver side), D32 (passenger side) terminals 14 and 15
  - Check continuity between outside key antenna D62 (rear door LH), D82 (rear door RH), D116 (back door) terminals 1 and 2
    Driver side, Passenger side
    
    14 - 15 : Continuity should exist.
    
    Back door, Rear door
    
    1 - 2 : Continuity should exist.
    
    Fig 2: Identifying Continuity Between Outside Key Antenna D62, D82, D116 Terminals 1 And 2
    Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: GO TO 3.

NG: Replace outside key antenna.

CHECK OUTSIDE KEY ANTENNA CIRCUIT

Disconnect Intelligent Key unit connector.

Check continuity between each outside key antenna connector D2 (driver side), D32 (passenger side), D62 (rear door LH), D82 (rear door RH), D116 (back door) terminals 1, 2, 14, 15 and Intelligent Key unit connector M34 terminals 17, 18, 19, 20, 37, and 38.

Fig 3: Identifying Outside Key Antenna Circuit

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

OUTSIDE KEY ANTENNA CIRCUIT

Item	Terminal (Wire color)		Continuity
Back door	1 (L/B)	17 (L)	Yes
Back door	2 (W/B)	18 (W/L)
Driver side	14 (BR/W)	19 (SB)
Driver side	15 (R/Y)	20 (GY)
Passenger side	14 (G/Y)	37 (G)
Passenger side	15 (L/Y)	38 (G/W)
Rear door LH	1 (G/Y)	19 (SB)
Rear door LH	2 (PU/W)	20 (GY)
Rear door RH	1 (G/Y)	37 (G)
Rear door RH	2 (PU/W)	38 (G/W)

Check continuity between each outside key antenna connector terminals 1, 2, 6, 7 and ground.

OUTSIDE KEY ANTENNA CONNECTOR AND GROUND

Item	Terminal (Wire color)		Continuity
Back door	1 (L/B)	Ground	No
Back door	2 (W/B)
Rear door (LH, RH)	1 (G/Y)
Rear door (LH, RH)	2 (PU/W)
Driver side	14 (BR/W)
Driver side	15 (R/Y)
Passenger side	14 (G/Y)
Passenger side	15 (L/Y)

OK or NG

OK: Replace Intelligent Key unit.

NG: Replace harness between outside key antenna and Intelligent Key unit.