LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2009 >> SC 430 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation (Diagnostics & Symptom Tests) >> Navigation System >> Display does not Dim when Light Control Switch is Turned ON >> Procedure

Display does not Dim when Light Control Switch is Turned ON: Procedure

  1. CHECK IMAGE QUALITY SETTING 
    1. Enter the display adjustment screen by pressing the "DISPLAY" switch.
      Fig 1: Identifying Day Mode On Display
      GTY132999Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the light control switch to TAIL.
    3. Check if "DAY MODE" on the display adjustment is ON.

      OK

      "DAY MODE" is ON.

    OK → TURN FORCED "DAY MODE" SETTING OFF 

    NG: Go to next step 

  2. CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE) 
    1. Enter the Display Check mode's Vehicle Signal Check Mode. Refer to DISPLAY CHECK MODE .
      Fig 2: Vehicle Signal Check Mode Screen
      GTY108726Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Cover the automatic light control sensor on the instrument panel with a cloth.
    3. Set the instrument panel light control to less than maximum (to activate the dimmer function that works when the light control switch is in the TAIL position).
    4. Check that the display changes between DIM and BRIGHT according to the light control switch operation.

      OK

      Light Control Switch Condition Display Condition
      TAIL or HEAD DIM
      OFF BRIGHT

      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