NAVI Screen is Rolling

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector B151 and display control unit connector M95.
3. Check continuity between NAVI control unit and display control unit.
  
  Fig 1: NAVI Control Unit Connector B151 And Display Control Unit Connector M95 Terminals Continuity Specifications
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: NAVI Control Unit Connector B151 Terminals And Ground Continuity Specifications
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between NAVI control unit and ground.
  
  Fig 3: Checking Continuity Between NAVI Control Unit And Display Control Unit
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: GO TO 2.
- NG: Repair harness.
CHECK RGB SYNCHRONIZING SIGNAL
1. Connect NAVI control unit connector and display control unit connector.
2. Turn ignition switch ON.
3. Check signal between NAVI control unit connector M95 terminals 16 (BR) and 14 with CONSULT-II or oscilloscope.
  - 16 (BR) - 14: Refer to "TERMINALS AND REFERENCE VALUE FOR NAVI CONTROL UNIT ".
  Fig 4: Checking Signal Between NAVI Control Unit Connector M95 Terminals 16 And 14 With CONSULT-II Or Oscilloscope
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: GO TO 3.
- NG: Replace NAVI control unit. Refer to "REMOVAL AND INSTALLATION OF NAVI CONTROL UNIT ".
CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect display control unit connector M95 and display unit connector M93.
3. Check continuity between display control unit and display unit.
  
  Fig 5: Display Control Unit Connector M95 And Display Unit Connector M93 Terminals Continuity Specifications
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 6: Checking Continuity Between Display Control Unit And Display Unit
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between display control unit and ground.
  
  Fig 7: Display Control Unit Connector M95 Terminals And Ground Continuity Specifications
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: GO TO 4.
- NG: Repair harness.
CHECK RGB SYNCHRONIZING SIGNAL
1. Connect display control unit connector and display unit connector.
2. Turn ignition switch ON.
3. Check signal between display unit connector M93 terminals 19 (G) and 21 with CONSULT-II or oscilloscope.
  - 19 (G) - 21: Refer to "TERMINALS AND REFERENCE VALUE FOR DISPLAY CONTROL UNIT ".
  Fig 8: Checking Signal Between Display Unit Connector M93 Terminals 19 And 21 With CONSULT-II Or Oscilloscope
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK: Replace display unit. Refer to "REMOVAL AND INSTALLATION OF DISPLAY UNIT ".
- NG: Replace display control unit. Refer to "REMOVAL AND INSTALLATION OF DISPLAY CONTROL UNIT ".