LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2009 >> Avalon XLS >> Repair and Diagnosis >> External Pages >> Different car >> Section 40 (Navigation) >> Navigation System >> Display does not Dim when Light Control Switch is Turned ON >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Avalon. 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. Turn the light control switch to the TAIL position.
    3. Check if "DAY MODE" on the display adjustment is ON.

      OK: "DAY MODE" is ON. 

    NG: Go to step 2 

    Fig 1: Locating Day Mode Switch
    G05006406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : TURN "DAY MODE" SETTING OFF 

  2. CHECK VEHICLE SIGNAL (DISPLAY CHECK MODE) 
    1. Enter the "DISPLAY CHECK MODE " .
    2. Check that the display changes between ON and OFF according to the light control switch operation.

      OK 

      LIGHT CONTROL SWITCH CHART

      Light Control Switch Display
      TAIL or ON ON
      OFF OFF

      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 

    Fig 2: Screen Display - Vehicle Signal Check Mode
    G05006407Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : REPLACE MULTI-DISPLAY