Ignition Signal Check

1. Disconnect the following connector B29, M77 or B32.
   • B29 : AV and NAVI control unit connector
   • M77 : AV control unit connector (without rear control switch)
   • B32 : AV control unit connector (with rear control switch)
2. Check voltage between AV and NAVI control unit connector or AV control unit connector and ground.
   Fig 1: Ignition Signal Check (1 Of 2)

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 2: Ignition Signal Check (2 Of 2)

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

OK or NG 

1. OK >> Replace AV and NAVI control unit or AV control unit.
2. NG >> Check harness for open or short between AV and NAVI control unit or AV control unit and fuse.