Lexus IS250 · Service Manual BODY ELECTRICAL

Display does not Dim when Light Control Switch is Turned ON

Circuit diagnosis

INSPECTION PROCEDURE


1. CHECK IMAGE QUALITY SETTING
E124058E01
  1. Enter the display adjustment screen by pressing the "DISP" switch.

  1. Turn the light control switch to the TAIL position.

  1. 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 CHECK MODE)
I038223E04
  1. Enter the "Display Check" mode (Vehicle Signal Check) (Click here).

  1. Check that the display changes between DIM and BRIGHT according to the light control switch operation.

    OK:
    Light Control Switch
    Display
    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


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