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Home >> Lexus >> 2017 >> LX 570 >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge / Display (Service Information) >> HEADUP Display Switch >> Inspection [09/2015 - ] >> Procedure

Inspection [09/2015 - ]: Procedure

  1. INSPECT COMBINATION SWITCH ASSEMBLY (HEADUP DISPLAY SWITCH) 
    1. GTY642277Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Check the resistance.

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      5 (ILU) - 15 (CH) HUD switch on (Pushed) Below 1 Ω
      HUD switch off (Not pushed) 10 kΩ or higher

      If the result is not as specified, replace the combination switch assembly (headup display switch).

      TEXT IN ILLUSTRATION

      * a HUD Switch
      * b Component without harness connected
      (Combination Switch Assembly (Headup Display Switch))
    2. GTY672188Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Check the illumination.

      Apply battery voltage to the connector and check the illumination condition.

      OK

      Measurement Condition Specified Condition
      Battery positive (+) → Terminal 7 (ILL+)
      Battery negative (-) → Terminal 12 (ILL-)
      Illuminates

      If the result is not as specified, replace the combination switch assembly (headup display switch).

      TEXT IN ILLUSTRATION

      * a Illuminates
      * b Component without harness connected
      (Combination Switch Assembly (Headup Display Switch))