AIR CONDITIONING SYSTEM(for Manual Air Conditioning System) DATA LIST / ACTIVE TEST


  1. DATA LIST

    Using the GTS 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. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Main Body ECU / Data List.

    5. Check the value(s) by referring to the table below.

      Main Body ECU
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Evaporator Fin Sensor Voltage

      Evaporator temperature sensor /

      Min.: 0V

      Max.: 21.4V

      Actual evaporator temperature displayed Sensor Voltage -
      A/C SW Input

      A/C Switch Input

      OFF or ON

      - -
      A/C SW Output

      A/C Switch Output

      OFF or ON

      - -
      Engine
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      A/C Pressure Normal SW

      A/C Pressure Normal Switch

      OFF or ON

      - -
      A/C Signal

      A/C Signal /

      OFF or ON

      A/C switch operated: ON (when switch is pressed) -
      A/C switch not operated: OFF (when switch is not pressed) -
      A/C Magnetic Clutch Relay

      A/C Magnetic Clutch Relay /

      OFF or ON

      - -
      Air Conditioner FB Val

      Compensation flow rate according to air conditioner load /

      Min.: -150

      Max.: 149.99

      - For use when engine stall, starting problems or rough idle is present.
  2. ACTIVE TEST

    Using the GTS to perform Active Tests allows relays, VSVs, 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 GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Active Test.

    5. Check the operation by referring to the table below.

      Engine
      Tester Display Test Part Control Range Diagnostic Note
      A/C Magnetic Clutch Relay A/C system operation OFF, ON -