Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Lexus >> 2017 >> IS 300 Base >> Repair and Diagnosis >> Body & Frame >> Windows >> Window / Glass - Service Information >> Windshield Deicer Switch >> Inspection [04/2013 - 09/2020] >> Procedure

Inspection [04/2013 - 09/2020]: Procedure

  1. INSPECT OUTER MIRROR HEATER SWITCH ASSEMBLY 
    1. GTY467751Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Outer Mirror Heater Switch Assembly)

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      6 - 9 Outer mirror heater switch assembly on Below 1 Ω
      6 - 9 Outer mirror heater switch assembly off 10 kΩ or higher

      If the result is not as specified, replace the outer mirror heater switch assembly.

    2. Check that the indicator light illuminates.
      GTY467750Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Indicator Light
      *b Illumination
      *c Component without harness connected
      (Outer Mirror Heater Switch Assembly)

      OK

      Tester Connection Specified Condition
      Battery positive (+) → 6
      Battery negative (-) → 10
      Outer mirror heater switch assembly indicator illuminates

      If the result is not as specified, replace the outer mirror heater switch assembly.

    3. Check that the illumination illuminates.

      OK

      Tester Connection Specified Condition
      Battery positive (+) → 8
      Battery negative (-) → 7
      Outer mirror heater switch assembly illumination illuminates

      If the result is not as specified, replace the outer mirror heater switch assembly.