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Home >> Infiniti >> 2008 >> M45 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 53 (Navigation System) >> NAVIGATION SYSTEM (for CrewMax) >> Display does not Dim when Light Control Switch is Turned ON >> Inspection Procedure
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Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK IMAGE QUALITY SETTING 
    1. Enter the display adjustment screen by pressing the "DISP" switch.
    2. Fig 1: Identifying DISP Switch
      G05156660Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Turn the light control switch to the TA4L position.
    4. Check if "Day Mode" on the display is ON.

      OK: "Day Mode" is ON. 

    NG: Go to step 2 

    OK: TURN "DAY MODE" SETTING OFF 

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

      OK 

      VEHICLE SIGNAL (DISPLAY VEHICLE SIGNAL)

      Light Control Switch Condition Display Condition
      TAIL or ON ON
      OFF OFF
      Fig 2: Diagnostic Menu Screen Display - Vehicle Signal Check Mode
      G05156659Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

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

      Result 

      LIGHT CONTROL SWITCH RESULT CHART

      Result Proceed to
      OK (for Column Shift Type) A
      OK (for Floor Shift Type) B
      NG C

    B: REPLACE NAVIGATION RECEIVER  (see REMOVAL  (For Floor Shift Type) )

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

    A: REPLACE NAVIGATION RECEIVER  (see REMOVAL  (For Column Shift Type) )