RGB Screen Is Rolling

WARNING: This page is about a different car, the 2004 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

RGB SYNCHRONIZING CIRCUIT CHECK
1. Turn the ignition switch OFF.
2. Disconnect NAVI control unit connector and display unit connector.
3. Check continuity between NAVI control unit and display unit.
  
  Fig 1: NAVI Control Unit And Display Unit Continuity Check Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between NAVI control unit and ground.
  
  Fig 2: NAVI Control Unit And Ground Continuity Check Table
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 3: Checking Continuity Between NAVI Control Unit And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 2.
2. NG: Repair harness or connector.
RGB SYNCHRONIZING SIGNAL CHECK
1. Connect NAVI control unit connector and display unit connector.
2. Turn the ignition switch ON.
3. Push the "MAP" switch.
4. Check the signal between NAVI control unit harness connector M57 terminals 20(P) and 17 with CONSULT-II or oscilloscope.
  20 (P) - 17 Refer to TERMINALS AND REFERENCE VALUE FOR NAVI CONTROL UNIT .
  
  Fig 4: Checking Signal Between NAVI Control Unit Harness Connector M57 Terminals 20(P) And 17
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace display unit.
2. NG: Replace NAVI control unit.