ELECTRICAL TYPE POWER HEATER SYSTEM DATA LIST / ACTIVE TEST


  1. DATA LIST

    Tech Tips

    Using an 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 by 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. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Enter the following menus: Body / Air Conditioner / Data List.

    5. According to the display on the tester, read the Data List.

      Air Conditioner
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Ambient Temp Sensor

      Ambient temperature sensor /

      Min.: -23.3°C (-9.94°F)

      Max.: 65.95°C (150.71°F)

      		 Actual ambient temperature is displayed -
      Engine Coolant Temp

      Engine coolant temperature /

      Min.: 1.3°C (34.34°F)

      Max.: 90.55°C (194.99°F)

      		 Actual engine coolant temperature is displayed after engine warmed up -
      Electric Heater Count

      Target number of electric heaters operating /

      Min.: 0, Max.: 3

      		 - -
      Electric Heater Active Level

      Number of electric heaters operating /

      Min.: 0, Max.: 3

      		 Follows the target number -
      Number of Trouble Codes

      Number of trouble codes /

      Min.: 0, Max.: 255

      		 Number of DTCs displayed -

  2. 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. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Enter the following menus: Body / Air Conditioner / Active Test /

    5. According to the display on the tester, perform the Active Test.

      Active Test
      Tester Display Test Part Control Range Diagnostic Note
      Heater Active Level Heater level Min.: 0, Max.: 3 -