2007 Lexus LS 460FACTORY OEM SERVICE PROCEDURE

RGB Screen is Not Shown

WARNING: This page is about a different car, the 2004 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK HARNESS 
    1. Turn ignition switch OFF.
    2. Disconnect display control unit connector and display unit connector.
    3. Check continuity between display control unit harness connector M95 terminal 49, 51 (B), 53 (W), 55 (R) and display unit harness connector M93 terminal 21, 9 (B), 20 (W), 8 (R).

      Continuity should exist. 

    4. Check continuity between display control unit harness connector M95 terminal 49, 51 (B), 53 (W), 55 (R) and ground.

      Continuity should not exist. 

      Fig 1: Checking Continuity Between Display Control Unit Harness Connector M95 Terminal 49, 51 (B), 53 (W), 55 (R) And Ground
      G03513542Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK : GO TO 2.
    2. NG : Repair harness.
  2. CHECK HORIZONTAL SYNCHRONIZATION SIGNAL 
    1. Connect display control unit connector and display unit connector.
    2. Turn ignition switch ON.
    3. Check signal between display control unit connector M95 terminals 55 (R) and 49 with CONSULT-II or oscilloscope.

      55 (R) - 49  : Refer to , "TERMINALS AND REFERENCE VALUE FOR DISPLAY CONTROL UNIT ".

      Fig 2: Checking Signal Between Display Control Unit Connector M95 Terminals 55 (R) And 49
      G03513543Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK : GO TO 3.
    2. NG : Replace display unit. Refer to , "Removal and Installation of Display Unit ".
  3. CHECK VERTICAL SYNCHRONIZATION SIGNAL 
    1. Turn ignition switch ON.
    2. Check signal between display control unit connector M95 terminals 53 (W) and 49 with CONSULT-II or oscilloscope.

      53 (W) - 49  : Refer to , "TERMINALS AND REFERENCE VALUE FOR DISPLAY CONTROL UNIT ".

      Fig 3: Checking Signal Between Display Control Unit Connector M95 Terminals 53 (W) And 49
      G03513544Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK : GO TO 4.
    2. NG : Replace display unit. Refer to , "REMOVAL AND INSTALLATION OF DISPLAY UNIT ".
  4. CHECK RGB AREA SIGNAL 
    1. Press the "TRIP" button.
    2. Check signal between display control unit connector M95 terminals 51 (B) and 49 with CONSULT-II or oscilloscope.

      51 (B) - 49  : Refer to , "TERMINALS AND REFERENCE VALUE FOR DISPLAY CONTROL UNIT ".

      Fig 4: Checking Signal Between Display Control Unit Connector M95 Terminals 51 (B) And 49
      G03513545Courtesy of NISSAN MOTOR CO., U.S.A.

    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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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.