SEAT HEATER SYSTEM DATA LIST / ACTIVE TEST


  1. READ DATA LIST

    Tech Tips

    Using the intelligent tester to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

    Note

    In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.


    1. Turn the power switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the power switch on (IG).

    4. Turn the intelligent tester on.

    5. Enter the following menus: Body / (desired system) / Data List.

    6. According to the display on intelligent tester, read the "Data List".

      Rear Console Switch
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Rear Right Seat A/C Level Adjust Switch (Up) Rear right seat heater switch up signal / ON or OFF

      ON: Rear seat heater switch up ON

      OFF: Rear seat heater switch up OFF

      		 -
      Rear Right Seat A/C Level Adjust Switch (Down) Rear right seat heater switch down signal / ON or OFF

      ON: Rear seat heater switch down ON

      OFF: Rear seat heater switch down OFF

      		 -
      Rear Left Seat A/C Level Adjust Switch (Up) Rear left seat heater switch up signal / ON or OFF

      ON: Rear seat heater switch up ON

      OFF: Rear seat heater switch up OFF

      		 -
      Rear Left Seat A/C Level Adjust Switch (Down) Rear left seat heater switch down signal / ON or OFF

      ON: Rear seat heater switch down ON

      OFF: Rear seat heater switch down OFF

      		 -
      Rear Right Seat A/C Auto Switch Rear right seat heater switch auto signal / ON or OFF

      ON: Rear seat heater switch auto ON

      OFF: Rear seat heater switch auto OFF

      		 -
      Rear Left Seat A/C Auto Switch Rear left seat heater switch auto signal / ON or OFF

      ON: Rear seat heater switch auto ON

      OFF: Rear seat heater switch auto OFF

      		 -
      Rear Left Seat A/C
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Seat Heat Temp Seat heater temperature sensor signal / MIN: 0°C (32°F), MAX: 85°C (185°F) Within range from 0 to 85°C (32 to 185°F) -
      Seat Target Temp Seat heater target temperature sensor signal / MIN: 0°C (32°F), MAX: 85°C (185°F) Within range from 0 to 85°C (32 to 185°F) -
      +B Power source / MIN: 0, MAX: 20 V Within range from 0 to 20 V -
      Outside Temp Outside temperature / MIN: - 30.8°C (23°F), MAX: 49.84°C (121°F) Within range from -30.8 to 49.84°C (23 to 121°F) -
      Heat Load Seat load / MIN: 0, MAX: 3 Within range from 0 to 3 -
      Pwr Consumption Seat climate control power consumption information / MIN: 0W, MAX: 280 W Within range from 0 to 280 W -
      Rear Left Seat Heater Sensitivity Adjust Seat heater control sensitivity adjustment customization setting output / -2, -1, 0, +1, +2 Customized value will be displayed -
      Rear Left Seat Heater Auto Function Fast acting seat heater auto function customization setting output / ON or OFF Customized value will be displayed -
      Rear Left Auto Quick Seat Heater Function Fast acting seat heater function customization setting output / ON or OFF Customized value will be displayed -
      Rear Left Auto Quick Seat Heater Timer Adjust Fast acting seat heater timer adjustment customization setting output / Standard, Short or Long

      Standard: Standard

      Short: Short

      Long: Long

      		 -
      Number of Trouble Codes Number of Past DTCs / Min.: 0, Max.: 255 Within range from 0 to 255 -
      Rear Right Seat A/C
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Seat Heat Temp Seat heater temperature sensor signal / MIN: 0°C (32°F), MAX: 85°C (185°F) Within range from 0 to 85°C (32 to 185°F) -
      Seat Target Temp Seat heater target temperature sensor signal / MIN: 0°C (32°F), MAX: 85°C (185°F) Within range from 0 to 85°C (32 to 185°F) -
      +B Power source / MIN: 0, MAX: 20 V Within range from 0 to 20 V -
      Outside Temp Outside temperature / MIN: - 30.8°C (23°F), MAX: 49.84°C (121°F) Within range from -30.8 to 49.84°C (23 to 121°F) -
      Heat Load Seat load / MIN: 0, MAX: 3 Within range from 0 to 3 -
      Pwr Consumption Seat climate control power consumption information / MIN: 0W, MAX: 280 W Within range from 0 to 280 W -
      Rear Right Seat Heater Sensitivity Adjust Seat heater control sensitivity adjustment customization setting output / -2, -1, 0, +1, +2 Customized value will be displayed -
      Rear Right Seat Heater Auto Function Fast acting seat heater auto function customization setting output / ON or OFF Customized value will be displayed -
      Rear Right Auto Quick Seat Heater Function Fast acting seat heater function customization setting output / ON or OFF Customized value will be displayed -
      Rear Right Auto Quick Seat Heater Timer Adjust Fast acting seat heater timer adjustment customization setting output / Standard, Short or Long

      Standard: Standard

      Short: Short

      Long: Long

      		 -
      Number of Trouble Codes Number of Past DTCs / Min.: 0, Max.: 255 Within range from 0 to 255 -

  2. PERFORM ACTIVE TEST

    Tech Tips

    Using the intelligent tester to perform the Active Tests allows relays, VSVs and actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.


    1. Turn the power switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the power switch on (IG).

    4. Turn the intelligent tester on.

    5. Enter the following menus: Body / (desired system) / Active Test.

    6. According to the display on intelligent tester, perform the "Active Test".

      Rear Left Seat A/C
      Tester Display Test Part Control Range
      Seat Heater Target Temperature Rear seat heater target operation 0 °C, 10 °C, 15 °C, 20 °C, 25 °C, 30 °C, 35 °C, 40 °C, 45 °C
      Rear Right Seat A/C
      Tester Display Test Part Control Range
      Seat Heater Target Temperature Rear seat heater target operation 0 °C, 10 °C, 15 °C, 20 °C, 25 °C, 30 °C, 35 °C, 40 °C, 45 °C