HEATER CONTROL ASSEMBLY INSPECTION


  1. INSPECT HEATER CONTROL ASSEMBLY

    A0137VKE01

    1. Check the heater blower switch resistance.


      1. Using an ohmmeter, measure the resistance and check the results in accordance with the values in the table below.

        Standard Resistance
        Blower Switch Position Tester Connection Specified Condition
        0 3 - 5 - 6 - 7 - 8 10 KΩ or higher
        0 - 1 3 - 5 - 6 - 7 - 8 10 KΩ or higher
        1 3 - 7 Below 1 Ω
        1 - 2 3 - 7 - 8 Below 1 Ω
        2 3 - 7 - 8 Below 1 Ω
        2 - 3 3 - 6 - 7 - 8 Below 1 Ω
        3 3 - 6 - 7 Below 1 Ω
        3 - 4 3 - 5 - 6 - 7 Below 1 Ω
        4 3 - 5 - 7 Below 1 Ω

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

    2. A0137R0E01

      Check the illumination operation.


      1. Connect the positive (+) lead from the battery to terminal 1 (P) and the negative (-) lead to terminal 2 (P), then check that the 2 bulbs illuminate.

        Standard
        Bulbs illuminate

        If the result is not as specified, check for faulty bulbs.

    3. A013845E01

      Inspect the bulb.


      1. Inspect continuity of the bulb by connecting the tester, as shown in the illustration.

        Standard Resistance
        Continuity

        If continuity exists, replace the heater blower switch.

        If no continuity exists, replace the bulb.