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Screen is Not Shown

WARNING: This page is about a different car, the 2005 Nissan 350Z. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DISPLAY UNIT 

    Check if brightness of screen changes when DAY/NIGHT switch on NAVI switch is turned on after turning on ignition switch.

    Does brightness of screen change? 

    • YES : GO TO  3.
    • NO : GO TO 2.
  2. CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT 

    Check display unit power supply and ground circuit. Refer to "POWER SUPPLY AND GROUND CIRCUIT CHECK FOR DISPLAY UNIT ".

    OK or NG 

    • OK : Replace display unit.
    • NG : Repair malfunctioning parts.
  3. CHECK NAVI CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT 

    Check NAVI control unit power supply and ground circuit. Refer to "POWER SUPPLY AND GROUND CIRCUIT CHECK FOR NAVI CONTROL UNIT ".

    OK or NG 

    • OK : GO TO 4.
    • NG : Repair malfunctioning parts.
  4. CHECK HARNESS 
    1. Turn ignition switch OFF.
    2. Disconnect NAVI control unit connector and display unit connector.
    3. Check continuity between NAVI control unit harness connector B 104 terminal 12 (L) and display unit harness connector M35 terminal 8 (W/R).
      • 12 - 8 : Continuity should exist. 
    4. Check continuity between NAVI control unit harness connector B 104 terminal 12 (L) and ground.
      • 12 - Ground : Continuity should not exist. 
      Fig 1: NAVI Control Unit Harness Connector B 104 Terminal 12 (L), Display Unit Harness Connector M35 Terminal 8 (W/R) & Ground Continuity Test
      G02409448Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    • OK : GO TO 5.
    • NG : Repair harness or connector.
  5. CHECK RGB AREA SIGNAL 
    1. Connect NAVI control unit connector and display unit connector.
    2. Turn ignition switch ON.
    3. Check signal between NAVI control unit harness connector B 104 terminals 12 (L) and 17 with CONSULT-II or oscilloscope.

    OK or NG 

    • OK : GO TO 6.
    • NG : Replace NAVI control unit.
    Fig 2: NAVI Control Unit Harness Connector B 104 Terminals 12 (L) & 17 Signal Test
    G02409449Courtesy of NISSAN MOTOR CO., U.S.A.
  6. CHECK HARNESS 
    1. Turn ignition switch OFF.
    2. Disconnect NAVI control unit connector and power cluster lid amp. connector.
    3. Check continuity between NAVI control unit harness connector B 104 terminal 22 (R/Y) and ground.
      • 22 - Ground : Continuity should not exist. 

    OK or NG 

    • OK : GO TO 7.
    • NG : Repair harness or connector.
    Fig 3: NAVI Control Unit Harness Connector B 104 Terminal 22 (R/Y) & Ground Continuity Test
    G02409450Courtesy of NISSAN MOTOR CO., U.S.A.
  7. CHECK NAVI CONTROL UNIT INPUT SIGNAL 
    1. Connect NAVI control unit connector and power cluster lid amp. connector.
    2. Turn ignition switch ON.
    3. Check voltage between NAVI control unit harness connector terminal and ground.
      Fig 4: NAVI Control Unit Harness Connector Terminal & Ground Voltage Specifications Table
      G02409451Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    • OK : GO TO 8.
    • NG : Replace NAVI control unit.
    Fig 5: NAVI Control Unit Harness Connector Terminal & Ground Voltage Test
    G02409452Courtesy of NISSAN MOTOR CO., U.S.A.
  8. CHECK POWER CLUSTER LID AMP. AND CLUSTER LID D 
    1. Replace power cluster lid amp.
    2. Turn ignition switch ON.
    3. Make sure that screen is shown.

    OK or NG 

    • OK : INSPECTION END
    • NG : Replace cluster lid D.
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