Vehicle Speed Signal Check

1. Turn the ignition switch OFF.
2. Disconnect AV and NAVI control unit connector and combination meter connector.
3. Check continuity AV and NAVI control unit and combination meter.
   Fig 1: Checking Vehicle Speed Signal (1 Of 3)

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 2: Checking Vehicle Speed Signal (2 Of 3)

   Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity AV and NAVI control unit harness connector terminal 33 and ground.
   Fig 3: Checking Vehicle Speed Signal (3 Of 3)

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

OK or NG 

1. OK >> GO TO 2.
2. NG >>
   • Check harness for open or short between AV and NAVI control unit and combination meter.
   • Check connector housings for disconnected or loose terminals.

1. Connect AV and NAVI control unit connector and combination meter connector.
2. Turn the ignition switch ON.
3. Check voltage between AV and NAVI control unit and ground.
   Fig 4: Checking Vehicle Speed Signal 1 (1 Of 2)

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 5: Checking Vehicle Speed Signal 1 (2 Of 2)

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

OK or NG 

1. OK >> GO TO 3.
2. NG >> Replace AV and NAVI control unit

1. Connect combination meter connector.
2. While driving vehicle at a constant speed, check voltage signal between AV and NAVI control unit and ground.
   Fig 6: Checking Vehicle Speed Signal 2 (1 Of 2)

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 7: Checking Vehicle Speed Signal 2 (2 Of 2)

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

OK or NG 

1. OK >> Replace AV and NAVI control unit.
2. NG >> Check combination meter system, refer to INSPECTION/VEHICLE SPEED SIGNAL