Ignition Signal Inspection

WARNING: This page is about a different car, the 2003 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

CHECK IGNITION SIGNAL
1. Disconnect AV control unit connector.
2. Check voltage between AV control unit and ground.
  
  Fig 1: Checking Voltage Between AV Control Unit & Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Identifying Terminal And Ignition Switch Position Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK >> Replace AV control unit.

NG >> Check harness for open or short between AV control unit and fuse.