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Home › Infiniti › 2004 › QX56 RWD › Repair and Diagnosis › Accessories & Equipment › Infotainment › Navigation System › Navigation System › NAVI Screen is Rolling

NAVI Screen is Rolling

  1. CHECK HARNESS 
    1. Turn ignition switch OFF.
    2. Disconnect NAVI control unit connector and display control unit connector.
    3. Check continuity between NAVI control unit and display control unit.
      Fig 1: NAVI Control Unit And Display Control Unit Terminals Continuity Chart
      G02406832Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check continuity between NAVI control unit and ground.
      Fig 2: NAVI Control Unit Continuity Chart
      G02406833Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 3: Checking Continuity Between NAVI Control Unit And Display Control Unit Connector Terminals
      G02406834Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: GO TO 2.
    2. NG: Repair harness.
  2. 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 (W) and 14 with CONSULT-II or oscilloscope.
      Fig 4: Checking Signal Between NAVI Control Unit Connector Terminal 16(W) And 14 With CONSULT-II
      G02406835Courtesy of NISSAN MOTOR CO., U.S.A.
      1. 16 (W) - 14: Refer to  TERMINALS AND REFERENCE VALUE FOR NAVI CONTROL UNIT   . 

    OK or NG

    1. OK: GO TO 3.
    2. NG: Replace NAVI control unit. Refer to REMOVAL AND INSTALLATION OF NAVI CONTROL UNIT  .
  3. CHECK HARNESS 
    1. Turn ignition switch OFF.
    2. Disconnect display control unit connector and display unit connector.
    3. Check continuity between display control unit and display unit.
      Fig 5: Display Control Unit And Display Unit Terminals Continuity Chart
      G02406836Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check continuity between display control unit and ground.
      Fig 6: Checking Continuity Between Display Control Unit And Display Unit Connector Terminals
      G02406837Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 7: Display Control Unit Terminals Continuity Chart
      G02406838Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: GO TO 4.
    2. NG: Repair harness.
  4. 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.
      Fig 8: Checking Signal Between Display Unit Connector Terminal 19(G) And 21 With CONSULT-II
      G02406839Courtesy of NISSAN MOTOR CO., U.S.A.
      1. 19 (G) - 21: Refer to  TERMINALS AND REFERENCE VALUE FOR DISPLAY CONTROL UNIT   . 

    OK or NG

    1. OK: Replace display unit. Refer to REMOVAL AND INSTALLATION OF DISPLAY UNIT  .
    2. NG: Replace display control unit. Refer to REMOVAL AND INSTALLATION OF DISPLAY CONTROL UNIT  .
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