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Home >> Lexus >> 2010 >> IS 250 AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation (For DVD) (Diagnostic Codes & Symptom Tests) >> NAVIGATION SYSTEM (for DVD) >> Illumination for Panel Switch does not Come on with Tail Switch ON >> Procedure

Illumination for Panel Switch does not Come on with Tail Switch ON: Procedure

  1. CHECK VEHICLE SIGNAL (OPERATION CHECK) 
    1. Enter the "Vehicle Signal Check Mode" screen. Refer to Check Vehicle Signal in Operation Check . Refer to OPERATION CHECK .
      Fig 1: Identifying Vehicle Signal Check Mode "Tail On" Screen Display
      GTY190961Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check that the display changes between ON and OFF according to the light control switch operation.

      OK

      Light Control Switch Display
      Tail or on ON
      Off OFF

      HINT: 

      This display is updated once per second. As a result, it is normal for the display to lag behind the actual switch operation.

    NG → See step   3 

    OK → See step   2 

  2. REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY. Refer to  REMOVAL 
  3. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE