SEAT HEATER CONTROL (for Power Seat) INSPECTION


  1. INSPECT SEAT CLIMATE CONTROL CONTROLLER LH


    1. Disconnect the seat climate control controller LH connectors.

    2. A003ARHE01
      Text in Illustration
      *1

      Component without harness connected

      (Seat Climate Control Controller)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A1 (E) - B4 (HI-) Always Below 1 Ω

      If the result is not as specified, replace the seat climate control controller.

    3. A003DWPE01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Seat Climate Control Controller)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A1 (E) - Body ground Always Below 1 Ω
      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A4 (B) - A1 (E) Ignition switch ON 11 to 14 V
      A2 (THL) - A1 (E) Ignition switch ON, seat heater switch min → max Gradual increase from below 1 V to 11 to 14 V
      A3 (SWL) - A1 (E) Ignition switch ON, seat heater switch off → on Below 1 V → 11 to 14 V

      If the result is not as specified, repair or replace the wire harness or connector.

    4. Connect the seat climate control controller LH connectors.

    5. A003D1ZE01
      Text in Illustration
      *1

      Component with harness connected

      (Seat Climate Control Controller)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      B1 (HI+) - A1 (E) Ignition switch ON, seat heater switch min → max 11 to 14 V

      If the result is not as specified, replace the seat climate control controller.

  2. INSPECT SEAT CLIMATE CONTROL CONTROLLER RH


    1. Disconnect the seat climate control controller RH connectors.

    2. A003ARHE01
      Text in Illustration
      *1

      Component without harness connected

      (Seat Climate Control Controller)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A1 (E) - B4 (HI-) Always Below 1 Ω

      If the result is not as specified, replace the seat climate control controller.

    3. A003DWPE02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Seat Climate Control Controller)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A1 (E) - Body ground Always Below 1 Ω
      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A4 (B1) - A1 (E) Ignition switch ON 11 to 14 V
      A2 (THR) - A1 (E) Ignition switch ON, seat heater switch min → max Gradual increase from below 1 V to 11 to 14 V
      A3 (SWR) - A1 (E) Ignition switch ON, seat heater switch off → on Below 1 V → 11 to 14 V

      If the result is not as specified, repair or replace the wire harness or connector.

    4. Connect the seat climate control controller RH connectors.

    5. A003D1ZE01
      Text in Illustration
      *1

      Component with harness connected

      (Seat Climate Control Controller)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      B1 (HI+) - A1 (E) Ignition switch ON, seat heater switch min → max 11 to 14 V

      If the result is not as specified, replace the seat climate control controller.