SEAT HEATER SWITCH INSPECTION

PROCEDURE

  1. INSPECT SEAT HEATER SWITCH LH

    B338636C01

    *a

    Component without harness connected

    (Seat Heater Switch LH)

    1. Check the resistance.

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

        Standard Resistance

        Tester Connection

        Switch Condition

        Specified Condition

        2 (IG) - 3 (HI)

        HI position on

        Below 1 Ω

        1 (LO) - 6 (E)

        Below 1 Ω

        2 (IG) - 1 (LO)

        LO position on

        Below 1 Ω

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

    2. Inspect the indicator operation.

      1. Apply auxiliary battery voltage to the seat heater switch LH connector, and check that the seat heater switch LH indicator LED illuminates.

        OK

        Measurement Condition

        Switch Condition

        Specified Condition

        Auxiliary battery positive (+) → 2 (IG)

        Auxiliary battery negative (-) → 6 (E)

        HI position on

        HI indicator LED illuminates

        Auxiliary battery positive (+) → 2 (IG)

        Auxiliary battery negative (-) → 6 (E)

        LO position on

        LO indicator LED illuminates

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

    3. Inspect the illumination operation.

      1. Apply auxiliary battery voltage to the seat heater switch LH connector, and check that the seat heater switch LH LED illuminates.

        OK

        Measurement Condition

        Specified Condition

        Auxiliary battery positive (+) → 4 (ILL+)

        Auxiliary battery negative (-) → 5 (ILL-)

        LED illuminates

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

  2. INSPECT SEAT HEATER SWITCH RH

    B338637C01

    *a

    Component without harness connected

    (Seat Heater Switch RH)

    1. Check the resistance.

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

        Standard Resistance

        Tester Connection

        Switch Condition

        Specified Condition

        3 (IG) - 4 (HI)

        HI position on

        Below 1 Ω

        2 (LO) - 10 (E)

        Below 1 Ω

        3 (IG) - 2 (LO)

        LO position on

        Below 1 Ω

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

    2. Inspect the indicator operation.

      1. Apply auxiliary battery voltage to the seat heater switch RH connector, and check that the seat heater switch RH indicator LED illuminates.

        OK

        Measurement Condition

        Switch Condition

        Specified Condition

        Auxiliary battery positive (+) → 3 (IG)

        Auxiliary battery negative (-) → 10 (E)

        HI position on

        HI indicator LED illuminates

        Auxiliary battery positive (+) → 3 (IG)

        Auxiliary battery negative (-) → 10 (E)

        LO position on

        LO indicator LED illuminates

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

    3. Inspect the illumination operation.

      1. Apply auxiliary battery voltage to the seat heater switch RH connector, and check that the seat heater switch RH LED illuminates.

        OK

        Measurement Condition

        Specified Condition

        Auxiliary battery positive (+) → 6 (ILL+)

        Auxiliary battery negative (-) → 8 (ILL-)

        LED illuminates

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