HEATER SWITCH INSPECTION


  1. INSPECT HEATER SWITCH ASSEMBLY

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    Text in Illustration
    *1 Indicator Light
    *2 Illumination Light
    *a

    Component without harness connected

    (Heater Switch Assembly)
    *b ON
    *c OFF

    1. Inspect the heater switch.


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

        Standard Resistance
        Tester Connection Switch Condition Specified Condition
        4(SW) - 1(E) ON Below 1 Ω
        4(SW) - 1(E) OFF 10 kΩ or higher

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

    2. Inspect the switch illumination.


      1. Apply battery voltage between the terminals of the light, and check the operation of the light.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → Terminal - 3(ILL+)

        Battery negative (-) → Terminal - 6(ILL-)

        		 Light comes on

        If the result is not as specified, replace the bulb or heater switch assembly.

    3. Inspect the switch indicator illumination.


      1. Apply battery voltage between the terminals of the light, and check the operation of the light.

        OK
        Measurement Condition Specified Condition

        Battery positive (+) → Terminal 5(IND+)

        Battery negative (-) → Terminal 8(IND-)

        		 Light comes on

        If the result is not as specified, replace the bulb or heater switch assembly.