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Combination Switch: Inspection: Inspection

WARNING: This page is about a different car, the 2012 Lexus CT 200h. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT COMBINATION SWITCH ASSEMBLY 
    1. Inspect EV switch
      1. Measure the resistance according to the value(s) in the table below.
        Fig 1: Identifying Combination Switch Assembly
        GTY351975Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard Resistance

        Tester Connection Condition Specified Condition
        H72-3 (S) - H72-14 (E) EV switch being pushed and held Below 1 Ω
        EV switch not operated 10 kΩ or higher
        TEXT IN ILLUSTRATION

        *a Component without harness connected
        (Combination Switch Assembly)

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

    2. Inspect SPORT mode switch
      1. Measure the resistance according to the value(s) in the table below.
        Fig 2: Identifying SPORT Mode Switch
        GTY357957Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard Resistance

        Tester Connection Condition Specified Condition
        H72-6 (PWR) - H72-14 (E) Mode switch being turned and held at SPORT position Below 1 Ω
        Mode switch not turned 10 kΩ or higher
        TEXT IN ILLUSTRATION

        *a Component without harness connected
        (Combination Switch Assembly)

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

    3. Inspect ECO mode switch
      1. Measure the resistance according to the value(s) in the table below.
        Fig 3: Identifying ECO Mode Switch
        GTY357980Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard Resistance

        Tester Connection Condition Specified Condition
        H72-5 (ECO) - H72-13 (E) Mode switch being turned and held at ECO position Below 1 Ω
        Mode switch not turned 10 kΩ or higher
        TEXT IN ILLUSTRATION

        *a Component without harness connected
        (Combination Switch Assembly)

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

    4. Inspect NORMAL mode switch
      1. Measure the resistance according to the value(s) in the table below.
        Fig 4: Identifying NORMAL Mode Switch
        GTY357977Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard Resistance

        Tester Connection Condition Specified Condition
        H72-4 (NORM) - H72-14 (E) Mode switch being pushed and held at NORMAL position Below 1 Ω
        Mode switch not pushed 10 kΩ or higher
        TEXT IN ILLUSTRATION

        *a Component without harness connected
        (Combination Switch Assembly)

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

    5. Inspect illumination
      1. Apply battery voltage between the terminals of the switch, and check the illumination condition of the combination switch assembly.
        Fig 5: Identifying E115 Connector Terminals
        GTY357776Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard

        Measurement Condition Specified Condition
        Auxiliary battery positive (+) →Terminal E115-1 (ILL+)
        Auxiliary battery negative (-) →Terminal E115-2 (ILL-)        		 Illuminates
        TEXT IN ILLUSTRATION

        *a Component without harness connected
        (Combination Switch Assembly)        		 *b Combination switch assembly illumination

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

  2. INSPECT POSITION INDICATOR HOUSING ASSEMBLY 
    1. Inspect illumination
      1. Apply battery voltage between the terminals of the switch, and check the illumination condition of the position indicator housing assembly.
        Fig 6: Identifying Position Indicator Housing Assembly
        GTY356784Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard

        Measurement Condition Specified Condition
        Auxiliary battery positive (+) →Terminal E115-1 (ILL)
        Auxiliary battery negative (-) →Terminal E115-2 (GND)        		 Illuminates
        TEXT IN ILLUSTRATION

        *a Component without harness connected
        (Position Indicator Housing Assembly)        		 *b Position indicator housing assembly illumination

        If the result is not as specified, replace the position indicator housing assembly.

  3. INSPECT SEAT HEATER SWITCH 
    1. Check operation of the seat heater switch.
      Fig 7: Identifying Seat Heater Switch
      GTY349642Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 0° (Off) *2 27° (On (Min.))
      *3 300° (On(MAX.)) *4 0 kΩ
      *5 0.28 to 0.42 kΩ *6 2.72 to 4.08 kΩ
      *7 Seat Heater Switch Indicator - -
      *a Component without harness connected
      (Seat Heater Switch)      		 - -
      1. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        LH SIDE

        Tester Connection Switch Condition Specified Condition
        3 (RV) - 4 (SW) Off 0.28 to 0.42 kΩ
        3 (RV) - 4 (SW) On (Min.) 0.28 to 0.42 kΩ
        3 (RV) - 4 (SW) On (Max.) 2.72 to 4.08 kΩ
        RH SIDE

        Tester Connection Switch Condition Specified Condition
        1 (REL1) - 6 (SW) Off 0.28 to 0.42 kΩ
        1 (REL1) - 6 (SW) On (Min.) 0.28 to 0.42 kΩ
        1 (REL1) - 6 (SW) On (Max.) 2.72 to 4.08 kΩ

        If the result is not as specified, replace the seat heater switch.

    2. Check operation of the seat heater switch indicator.
      1. Apply auxiliary battery voltage and check operation of the switch as shown in the table below.

        Standard

        Measurement Condition Switch Condition Specified Condition
        Auxiliary battery positive (+) → Terminal 2 (IG)
        Auxiliary battery negative (-) → Terminal 7 (E)        		 Seat heater switch on Indicator comes on

        If the result is not as specified, replace the seat heater switch.

    3. Check the illumination of the seat heater switch.
      1. Apply auxiliary battery voltage and check operation of the switch as shown in the table below.

        Standard

        Measurement Condition Specified Condition
        Auxiliary battery positive (+) → Terminal 8 (ILL+)
        Auxiliary battery negative (-) → Terminal 5 (ILL-)        		 Illumination comes on
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