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


  1. 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. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the intelligent tester on.

    4. Enter the following menus:


      • Body / Air Conditioner / Data List.

      • Powertrain / Engine and ECT / Data List.

    5. According to the display on the intelligent 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 displayed

      Open in the circuit: -23.3°C (-9.94°F).

      Short in the circuit: 65.95°C (150.71°F).
      Adjusted Ambient Temp

      Adjusted ambient temperature /

      Min.: -30.8°C (-23.44°F)

      Max.: 50.8°C (123.44°F)

      		 Adjusted ambient temperature displayed -
      Evaporator Fin Thermistor

      No. 1 cooler thermistor /

      Min.: -29.7°C (-21.46°F)

      Max.: 59.55°C (139.19°F)

      		 Actual evaporator temperature displayed

      Open in the circuit: -29.7°C (-21.46°F).

      Short in the circuit: 59.55°C (139.19°F).
      Evaporator Target Temp

      Target evaporator temperature /

      Min.: -327.68°C (-557.82°F)

      Max.: 327.67°C (621.81°F)

      		 Target evaporator temperature 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 displayed -
      Regulator Pressure Sensor

      Refrigerant pressure sensor /

      Min.: -0.4566 MPa

      Max.: 3.2943 MPa

      		 Actual refrigerant pressure displayed -
      Regulator Control Current

      Compressor assembly with pulley /

      0: Min., 0.997: Max.

      		 Value changes between 0 A and 0.997 A in accordance with compressor assembly with pulley operation -
      Air Mix Servo Targ Pulse (D)

      Air mix damper servo /

      5: Min., 92: Max. (for LHD)

      6: Min., 93: Max. (for RHD)

      for LHD:


      • 92 (pulse): Max cool

      • 5 (pulse): Max hot

      for RHD:


      • 6 (pulse): Max cool

      • 93 (pulse): Max hot

      		 -
      Air Outlet Servo Pulse (D)

      Air outlet damper servo /

      5: Min., 47: Max.

      47 (pulse): FACE

      37 (pulse): B/L

      17 (pulse): FOOT (M)

      17 (pulse): FOOT (A)

      9 (pulse): F/D

      5 (pulse): DEF

      		 -
      Air Inlet Damper Targ Pulse

      Air inlet damper servo /

      7: Min., 19: Max. (for LHD)

      7: Min., 25: Max. (for RHD)

      for LHD:


      • 19 (pulse): Recirculation

      • 7 (pulse): Fresh

      for RHD:


      • 7 (pulse): Recirculation

      • 25 (pulse): Fresh

      		 -
      Electric Heater Count*

      Number of electric heaters operating /

      Min.: 0, Max.: 3

      		 - -
      Number of Trouble Codes

      Number of trouble codes /

      Min.: 0, Max.: 255

      		 Number of DTCs displayed -

      • *: w/ PTC Heater

      Engine and ECT
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      A/C Signal A/C signal / ON or OFF

      ON: A/C switch on

      OFF: A/C switch off

      		 -

  2. ACTIVE TEST

    Tech Tips

    Using the intelligent tester 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 intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the intelligent tester on.

    4. Enter the following menus:


      • Body / Air Conditioner / Active Test.

      • Powertrain / Engine and ECT / Data List.

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

      Air Conditioner
      Tester Display Test Part Control Range Diagnostic Note
      Defogger Relay (Rear) Rear window defogger relay operation ON or OFF -
      Heater Active Level* Heater level Min.: 0, Max.: 3 -
      Air Mix Servo Targ Pulse (D) Driver side air mix servo motor pulse

      Min.: 5, Max.: 92 (for LHD)

      Min.: 6, Max.: 93 (for RHD)

      		 -
      Air Outlet Servo Pulse (D) Driver side air outlet servo motor pulse Min.: 5, Max.: 47 -
      Air Inlet Damper Targ Pulse Air inlet damper target pulse

      Min.: 7, Max.: 19 (for LHD)

      Min.: 7, Max.: 25 (for RHD)

      		 -

      • *: w/ PTC Heater