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Inspection [11/2021 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus IS 500, 2023 Lexus IS 500, and 2022 Lexus IS 500. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT COMBINATION SWITCH ASSEMBLY 
    1. Inspect the Eco mode switch:
      1. Measure the resistance according to the value(s) in the table below.
        GTY513704Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Component without harness connected
        (Combination Switch Assembly)

        Standard Resistance

        Tester Connection Condition Specified Condition
        11 (ECO) - 16 (E) Combination switch assembly knob turned and held at Eco position Below 50 Ω
        Combination switch assembly knob not turned to Eco position 10 kΩ or higher

        If the result is not as specified, replace the combination switch assembly.

    2. Inspect Normal/Custom mode switch:
      1. Measure the resistance according to the value(s) in the table below.
        GTY513701Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Component without harness connected
        (Combination Switch Assembly)

        Standard Resistance

        Tester Connection Condition Specified Condition
        9 (NORM) - 16 (E) Combination switch assembly knob pushed and held Below 50 Ω
        Combination switch assembly knob not pushed 10 kΩ or higher

        If the result is not as specified, replace the combination switch assembly.

    3. Inspect the Sport S/S+ mode switch:
      1. Measure the resistance according to the value(s) in the table below.
        GTY513700Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Component without harness connected
        (Combination Switch Assembly)

        Standard Resistance

        Tester Connection Condition Specified Condition
        10 (PWR) - 16 (E) Combination switch assembly knob turned and held at Sport S/S+ position Below 50 Ω
        Combination switch assembly knob not turned to Sport S/S+ position 10 kΩ or higher

        If the result is not as specified, replace the combination switch assembly.

    4. Inspect the SNOW switch:
      1. Measure the resistance according to the value(s) in the table below.
        GTY513698Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Component without harness connected
        (Combination Switch Assembly)

        Standard Resistance

        Tester Connection Condition Specified Condition
        3 (SNSW) - 16 (E) SNOW switch pushed and held Below 50 Ω
        SNOW switch not pushed 10 kΩ or higher

        If the result is not as specified, replace the combination switch assembly.

    5. Inspect the VSC OFF switch:
      1. Measure the resistance according to the value(s) in the table below.
        GTY513699Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Component without harness connected
        (Combination Switch Assembly)

        Standard Resistance

        Tester Connection Condition Specified Condition
        1 (+) - 16 (E) VSC OFF switch pushed and held Below 50 Ω
        VSC OFF switch not pushed 10 kΩ or higher

        If the result is not as specified, replace the combination switch assembly.

    6. Inspect the BRAKE HOLD switch:
      1. Measure the resistance according to the value(s) in the table below.
        GTY1083070Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Component without harness connected
        (Combination Switch Assembly)

        Standard Resistance

        Tester Connection Condition Specified Condition
        14 (+B) - 16 (E) BRAKE HOLD switch pushed and held Below 50 Ω
        BRAKE HOLD switch not pushed 10 kΩ or higher

        If the result is not as specified, replace the combination switch assembly.

    7. Check the illumination:
      1. Apply battery voltage to the combination switch assembly and check that the combination switch assembly illuminates.
        GTY958568Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Component without harness connected
        (Combination Switch Assembly)
        *b Illumination

        Standard

        Measurement Condition Specified Condition
        Battery positive (+) → 5 (ILL+)
        Battery negative (-) → 8 (ILL-)        		 Illuminates

        If the result is not as specified, replace the combination switch assembly.

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