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Home >> Lexus >> 2007 >> LS 460L >> Repair and Diagnosis >> Body & Frame >> Seats >> Seats - Climate Control Seat System, Seat Vibration System >> Climate Control Seat System >> Data List / Active Test

Data List / Active Test

  1. READ DATA LIST 

    HINT:

    Using the intelligent tester or Techstream 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. Warm up the engine.
    2. Turn the engine switch off.
    3. Connect the intelligent tester (with CAN VIM) or Techstream to the DLC3.
    4. Turn the engine switch on (IG).
    5. Turn the tester on.
    6. Enter the following menus:
      1. Intelligent tester - Select: DIAGNOSIS / OBD / MOBD / (desired system) / DATA LIST / ALL /
      2. Techstream - Select: Body Electrical / (desired system) / Data List /
    7. According to the display on tester, read the "DATA LIST".
      1. Intelligent tester

        FL SEAT A/C 

        INTELLIGENT TESER - FL SEAT A/C

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        CUSHION TEMP Seat cushion temperature sensor signal / MIN: 0°C (32°F), MAX: 85°C (185°F) Within range from 0 to 85°C (32 to 185°F) -
        SEATBACK TEMP Seatback 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 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) -
        CUSHION BLOWER Seat cushion fan blower signal / MIN: 0, MAX: 31 Within range from 0 to 31 -
        CUSHION DUTY Seat cushion peltier output signal /MIN:-100%, MAX: 100% Within range from -100 to 100% -
        SEATBACK DUTY Seatback peltier output signal / MIN: -100%, MAX: 100% Within range from -100 to 100% -
        SEAT TRG 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 Within range from 0 to 20 -
        #CODES Number of Past DTCs / MIN: 0, MAX: 255 Within range from 0 to 255 -

        FR SEAT A/C 

        INTELLIGENT TESTER - FR SEAT A/C

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        CUSHION TEMP Seat cushion temperature sensor signal / MIN: 0°C (32°F), MAX: 85°C (185°F) Within range from 0 to 85°C (32 to 185°F) -
        SEATBACK TEMP Seatback 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 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) -
        CUSHION BLOWER Seat cushion fan blower signal / MIN: 0, MAX: 31 Within range from 0 to 31 -
        CUSHION DUTY Seat cushion peltier output signal /MIN:-100%, MAX: 100% Within range from -100 to 100% -
        SEATBACK DUTY Seatback peltier output signal / MIN:-100%,, MAX: 100% Within range from -100 to 100% -
        SEAT TRG 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 Within range from 0 to 20 -
        #CODES Number of Past DTCs / MIN: 0, MAX: 255 Within range from 0 to 255 -

        RL SEAT A/C 

        INTELLIGENT TESTER - RL SEAT A/C

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        CUSHION TEMP Seat cushion temperature sensor signal / MIN: 0°C (32°F), MAX: 85°C(185°F) Within range from 0 to 85°C (32 to 185°F) -
        SEATBACK TEMP Seatback 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 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) -
        CUSHION BLOWER Seat cushion fan blower signal / MIN: 0, MAX: 31 Within range from 0 to 31 -
        SEATBACK BLOWER Seatback fan blower signal / MIN:0, MAX: 31 Within range from 0 to 31 -
        CUSHION DUTY Seat cushion peltier output signal /MIN:-100%, MAX: 100% Within range from -100 to 100% -
        SEATBACK DUTY Seatback peltier output signal / MIN:-100, MAX: 100% Within range from -100 to 100% -
        SEAT TRG 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 Within range from 0 to 20 -
        #CODES Number of Past DTCs / MIN: 0, MAX: 255 Within range from 0 to 255 -

        RR SEAT A/C 

        INTELLIGENT TESTER - RR SEAT A/C

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        CUSHION TEMP Seat cushion temperature sensor signal / MIN: 0°C (32°F), MAX: 85°C (185°F) Within range from 0 to 85°C (32 to 185°F) -
        SEATBACK TEMP Seatback 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 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) -
        CUSHION BLOWER Seat cushion fan blower signal / MIN: 0, MAX: 31 Within range from 0 to 31 -
        SEATBACK BLOWER Seatback fan blower signal / MIN:0, MAX: 31 Within range from 0 to 31 -
        CUSHION DUTY Seat cushion peltier output signal / MIN: -100%, MAX: 100% Within range from -100 to 100% -
        SEATBACK DUTY Seatback peltier output signal / MIN:-100%, MAX: 100% Within range from -100 to 100% -
        SEAT TRG 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 Within range from 0 to 20 -
        #CODES Number of Past DTCs / MIN: 0, MAX: 255 Within range from 0 to 255 -

        CENTER CONSOLE SWITCH 

        INTELLIGENT TESTER - CENTER CONSOLE SWITCH

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        R SEAT HEAT SW Seat A/C main switch signal / ON or OFF ON: Seat A/C main switch ON
        OFF: Seat A/C main switch OFF
        -

        REAR CONSOLE SWITCH 

        INTELLIGENT TESTER - REAR CONSOLE SWITCH

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        RL A/C MAIN SW Rear left seat A/C main switch condition / ON or OFF ON: Rear left seat A/C main switch ON
        OFF: Rear left seat A/C main switch OFF
        -
        RR A/C MAIN SW Rear right seat A/C main switch condition / ON or OFF ON: Rear right seat A/C main switch ON
        OFF: Rear right seat A/C main switch OFF
        -
        RL A/C VOL SW Rear left seat A/C switch signal (volume)/ MIN: LEVEL 1, MAX: LEVEL 14 or NG Within range from LEVEL 1 to LEVEL 14
        NG: Rear left seat A/C switch malfunction
        -
        RR A/C VOL SW Rear right seat A/C switch signal (volume) / MIN: LEVEL 1, MAX: LEVEL 14 or NG Within range from LEVEL 1 to LEVEL 14
        NG: Rear right seat A/C switch malfunction
        -
      2. Techstream

        Front Left Seat A/C 

        TECHSTREAM - FORNT LEFT SEAT A/C

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        Cushion Temp Seat cushion temperature sensor signal / MIN: 0°C (32°F), MAX: 85°C (185°F) Within range from 0 to 85°C (32 to 185°F) -
        Seatback Temp Seatback 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 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) -
        Cushion Blower Seat cushion fan blower signal / MIN:0, MAX: 31 Within range from 0 to 31 -
        Cushion Duty Seat cushion peltier output signal /MIN:-100%, MAX: 100% Within range from -100 to 100% -
        Seatback Duty Seatback peltier output signal / MIN:-100%, MAX: 100% Within range from -100 to 100% -
        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 Within range from 0 to 20 -
        Number of Trouble Codes Number of Past DTCs / MIN: 0, MAX: 255 Within range from 0 to 255 -

        Front Right Seat A/C 

        TECHSTREAM - FRONT RIGHT SEAT A/C

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        Cushion Temp Seat cushion temperature sensor signal / MIN: 0°C (32°F), MAX: 85°C(185°F) Within range from 0 to 85°C (32 to 185°F) -
        Seatback Temp Seatback 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 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) -
        Cushion Blower Seat cushion fan blower signal / MIN:0, MAX: 31 Within range from 0 to 31 -
        Cushion Duty Seat cushion peltier output signal /MIN:-100%, MAX: 100% Within range from -100 to 100% -
        Seatback Duty Seatback peltier output signal / MIN:-100%,, MAX: 100% Within range from -100 to 100% -
        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 Within range from 0 to 20 -
        Number of Trouble Codes Number of Past DTCs / MIN: 0, MAX: 255 Within range from 0 to 255 -

        Rear Left Seat A/C 

        TECHSTREAM - REAR LEFT SEAT A/C

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        Cushion Temp Seat cushion temperature sensor signal / MIN: 0°C (32°F), MAX: 85°C(185°F) Within range from 0 to 85°C (32 to 185°F) -
        Seatback Temp Seatback 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 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) -
        Cushion Blower Seat cushion fan blower signal / MIN:0, MAX: 31 Within range from 0 to 31 -
        Seatback Blower Seatback fan blower signal / MIN:0, MAX: 31 Within range from 0 to 31 -
        Cushion Duty Seat cushion peltier output signal / MIN: -100%, MAX: 100% Within range from -100 to 100% -
        Seatback Duty Seatback peltier output signal / MIN: -100%, MAX: 100% Within range from -100 to 100% -
        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: 20V Within range from 0 to 20V -
        Number of Trouble Codes Number of Past DTCs / MIN: 0, MAX: 255 Within range from 0 to 255 -

        Rear Right Seat A/C 

        TECHSTREAM - REAR RIGHT SEAT A/C

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        Cushion Temp Seat cushion temperature sensor signal / MIN: 0°C (32°F), MAX: 85°C (185°F) Within range from 0 to 85°C (32 to 185°F) -
        Seatback Temp Seatback 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 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) -
        Cushion Blower Seat cushion fan blower signal / MIN:0, MAX: 31 Within range from 0 to 31 -
        Seatback Blower Seatback fan blower signal / MIN:0, MAX: 31 Within range from 0 to 31 -
        Cushion Duty Seat cushion peltier output signal /MIN:-100%, MAX: 100% Within range from -100 to 100% -
        Seatback Duty Seatback peltier output signal / MIN: -100%, MAX: 100% Within range from -100 to 100% -
        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 Within range from 0 to 20 -
        Number of Trouble Codes Number of Past DTCs / MIN: 0, MAX: 255 Within range from 0 to 255 -

        Center Console Switch 

        TECHSTREAM - CENTER CONSOLE SWITCH

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        Rear Seat Heater Main Switch Rear seat A/C main switch condition / ON or OFF ON: Rear seat A/C main switch ON
        OFF: Rear seat A/C main switch OFF
        -

        Rear Console Switch 

        TECHSTREAM - REAR CONSOLE SWITCH

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        RL Seat A/C Main Switch Rear left seat A/C main switch condition / ON or OFF ON: Rear left seat A/C main switch ON
        OFF: Rear left seat A/C main switch OFF
        -
        RR Seat A/C Main Switch Rear right seat A/C main switch condition / ON or OFF ON: Rear right seat A/C main switch ON
        OFF: Rear right seat A/C main switch OFF
        -
        RL Seat A/C Volume Switch Rear left seat A/C switch signal (volume)/ MIN: LEVEL 1, MAX: LEVEL 14 or NG Within range from LEVEL 1 to LEVEL 14
        NG: Rear left seat A/C switch malfunction
        -
        RR Seat A/C Volume Switch Rear right seat A/C switch signal (volume) / MIN: LEVEL 1, MAX: LEVEL 14 or NG Within range from LEVEL 1 to LEVEL 14
        NG: Rear right seat A/C switch malfunction
        -
  2. PERFORM ACTIVE TEST 

    HINT:

    Using the intelligent tester or Techstream to read the Data List allows the values or states of switches, sensor, 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. Warm up the engine.
    2. Turn the engine switch off.
    3. Connect the intelligent tester (with CAN VIM) or the Techstream to the DLC3.
    4. Turn the engine switch on (IG).
    5. Turn the tester on.
    6. Enter the following menus:
      1. Intelligent tester - Select: DIAGNOSIS / OBD / MOBD / (desired system) / ACTIVE TEST /
      2. Techstream - Select: Body Electrical / (desired system) / Active Test /
    7. According to the display on tester, perform the "ACTIVE TEST".
      1. Intelligent tester

        FL SEAT A/C 

        INTELLIGENT TESTER - FL SEAT A/C

        Tester Display Test Part Control Range
        SEAT TRG TEMP Rear seat heater target operation 0 to 85°C (5°C increments)
        {32 to 185°F (9°F increments)}
        AIRFLOW Airflow operation OFF / Low / High
        WARM AIR Warm air operation OFF/ON
        COOL AIR Cool air operation OFF/ON

        FR SEAT A/C 

        INTELLIGENT TESTER - FR SEAT A/C

        Tester Display Test Part Control Range
        SEAT TRG TEMP Rear seat heater target operation 0 to 85°C (5°C increments)
        {32 to 185°F (9°F increments)}
        AIRFLOW Airflow operation OFF / Low / High
        WARM AIR Warm air operation OFF / ON
        COOL AIR Cool air operation OFF / ON

        RL SEAT A/C 

        INTELLIGENT TESTER - RL SEAT A/C

        Tester Display Test Part Control Range
        SEAT TRG TEMP Rear seat heater target operation 0 to 85°C (5°C increments)
        {32 to 185°F (9°F increments)}
        AIRFLOW Airflow operation OFF / Low / High
        WARM AIR Warm air operation OFF / ON
        COOL AIR Cool air operation OFF / ON

        RR SEAT A/C 

        INTELLIGENT TESTER - RR SEAT A/C

        Tester Display Test Part Control Range
        SEAT TRG TEMP Rear seat heater target operation 0 to 85°C (5°C increments)
        {32 to 185°F (9°F increments)}
        AIRFLOW Airflow operation OFF / Low / High
        WARM AIR Warm air operation OFF / ON
        COOL AIR Cool air operation OFF / ON
      2. Techstream

        Front Left Seat A/C 

        TECHSTREAM - FRONT LEFT SEAT A/C

        Tester Display Test Part Control Range
        Seat Heater Target Temperature Rear seat heater target operation 0 to 85°C (5°C increments)
        {32 to 185°F (9°F increments)}
        Airflow Airflow operation OFF / Low / High
        Warm air Warm air operation OFF / ON
        Cool air Cool air operation OFF / ON

        Front Right Seat A/C 

        TECHSTREAM - FRONT RIGHT SEAT A/C

        Tester Display Test Part Control Range
        Seat Heater Target Temperature Rear seat heater target operation 0 to 85°C (5°C increments)
        {32 to 185°F (9°F increments)}
        Airflow Airflow operation OFF / Low / High
        Warm air Warm air operation OFF / ON
        Cool air Cool air operation OFF / ON

        Rear Left Seat A/C 

        TECHSTREAM - REAR LEFT SEAT A/C

        Tester Display Test Part Control Range
        Seat Heater Target Temperature Rear seat heater target operation 0 to 85°C (5°C increments)
        {32 to 185°F (9°F increments)}
        Airflow Airflow operation OFF / Low / High
        Warm air Warm air operation OFF / ON
        Cool air Cool air operation OFF / ON

        Rear Right Seat A/C 

        TECHSTREAM - REAR RIGHT SEAT A/C

        Tester Display Test Part Control Range
        Seat Heater Target Temperature Rear seat heater target operation 0 to 85°C (5°C increments)
        {32 to 185°F (9°F increments)}
        Airflow Airflow operation OFF / Low / High
        Warm air Warm air operation OFF / ON
        Cool air Cool air operation OFF / ON