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Home › Lexus › 2007 › RX 400h AWD › Repair and Diagnosis › Accessories & Equipment › Infotainment › Navigation › Navigation System › Display does not Dim when Light Control Switch is Turned ON › Inspection Procedure

Inspection Procedure

  1. CHECK IMAGE QUALITY SETTING 
    1. Enter the display adjustment screen by pressing the "DISP" switch.
    2. Turn the light control switch to the TAIL position.
    3. Check if "DAY MODE" on the display is ON.

      OK: "DAY MODE" is ON. 

    NG: GO TO step 2 

    Fig 1: Diagnostic Tool Display - Day Mode
    G04945332Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    OK: TURN "DAY MODE" SETTING OFF 

  2. CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE) 
    1. Enter the "Display Check Mode" (Vehicle Signal Check) (See DISPLAY CHECK MODE ).
    2. Check that the display changes between DIM and BRIGHT according to the light control switch operation.

    OK 

    LIGHT CONTROL SWITCH POSITION AND DISPLAY REFERENCE

    Light Control Switch Display
    TAIL or HEAD DIM
    OFF BRIGHT
    Fig 2: Diagnostic Tool Display - Vehicle Signal Check Mode Screen
    G04945333Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

    HINT:

    The display is updated once per second. It is normal for the display to lag behind the actual switch operation.

    NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

    OK: REPLACE MULTI-DISPLAY 

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