Display does not Dim when Light Control Switch is Turned ON

1. Enter the display adjustment screen by pressing the "DISPLAY" 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. 

Fig 1: Checking Image Quality Settings

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 2 

OK: TURN "DAY MODE" SETTING OFF 

1. Enter the "Display Check" mode (Vehicle Signal Check) (See DISPLAY CHECK MODE  ).
2. Check that the display changes between ON and OFF according to the light control switch operation.

   OK 

   VEHICLE SIGNAL (DISPLAY CHECK MODE)
   
   

   Light Control Switch	Display
   TAIL or ON	ON
   OFF	OFF

   Fig 2: Identifying Vehicle Signal Screen Display

   Courtesy 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.

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

OK: REPLACE RADIO AND NAVIGATION ASSEMBLY