AIR CONDITIONING SYSTEM DATA LIST / ACTIVE TEST


  1. DATA LIST

    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 power switch on (IG).

    3. Turn the intelligent tester on.

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

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

      Air Conditioner
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Room Temperature Sensor

      Room temperature sensor /

      Min.: -6.5°C (20.3°F)

      Max.: 57.25°C (135.05°F)

      Actual cabin temperature displayed -
      Ambient Temp Sensor

      Ambient temperature sensor /

      Min.: -23.3°C (-9.94°F)

      Max.: 65.95°C (150.71°F)

      Actual ambient temperature displayed -
      Adjusted Ambient Temp

      Adjusted ambient temperature /

      Min.: -30.8°C (-23.44°F)

      Max.: 50.8°C (123.44°F)

      - -
      Evaporator Fin Thermistor

      Evaporator temperature sensor /

      Min.: -29.7°C (-21.46°F)

      Max.: 59.55°C (139.19°F)

      Actual evaporator temperature displayed -
      Evaporator Target Temp

      Evaporator target temperature /

      Min.: -327.68°C (-557.82°F)

      Max.: 327.67°C (621.81°F)

      Evaporator target temperature displayed -
      Solar Sensor (D side)

      Solar sensor /

      Min.: 0

      Max.: 255

      Solar sensor value increases as brightness increases -
      Engine Coolant Temp

      Engine coolant temperature sensor /

      Min.: 1.3°C (34.34°F)

      Max.: 90.55°C (194.99°F)

      Actual engine coolant temperature displayed -
      Set Temperature (D side)

      Set temperature /

      Min.: 65°F (18°C)

      Max.: 85°F (32°C)

      Actual set temperature displayed -
      Blower Motor Speed Level

      Blower motor speed level /

      Min.: 0

      Max.: 31

      Displayed speed level increases in range between 0 and 31 as blower motor speed increases -
      Regulator Pressure Sensor

      Air conditioning pressure sensor /

      Min.: -0.45668 MPaG

      Max.: 3.29437 MPaG

      Actual regulator pressure displayed -
      Air Mix Servo Targ Pulse (D)

      Air mix servo motor target pulse /

      Min.: 0

      Max.: 255

      MAX. COLD: 6 (pulse)

      MAX. HOT: 93 (pulse)

      -
      Air Mix Servo Actual Pulse (D)

      Air mix servo motor actual pulse /

      Min.: 0

      Max.: 255

      MAX. COLD: 6 (pulse)

      MAX. HOT: 93 (pulse)

      -
      Air Outlet Servo Pulse (D)

      Air outlet servo motor target pulse /

      Min.: 0

      Max.: 255

      FACE: 47 (pulse)

      B/L: 37 (pulse)

      FOOT: 17 (pulse)

      FOOT/DEF: 9 (pulse)

      DEF: 5 (pulse)

      -
      Air Outlet Servo Actu Pulse (D)

      Air outlet servo motor actual pulse /

      Min.: 0

      Max.: 255

      FACE: 47 (pulse)

      B/L: 37 (pulse)

      FOOT: 17 (pulse)

      FOOT/DEF: 9 (pulse)

      DEF: 5 (pulse)

      -
      Air Inlet Damper Targ Pulse

      Air inlet servo motor target pulse /

      Min.: 0

      Max.: 255


        for LHD:

      • RECIRCULATION: 19 (pulse)

      • FRESH: 7 (pulse)


        for RHD:

      • RECIRCULATION: 7 (pulse)

      • FRESH: 25 (pulse)

      -
      Air Inlet Damper Actual Pulse

      Air inlet servo motor actual pulse /

      Min.: 0

      Max.: 255


        for LHD:

      • RECIRCULATION: 19 (pulse)

      • FRESH: 7 (pulse)


        for RHD:

      • RECIRCULATION: 7 (pulse)

      • FRESH: 25 (pulse)

      -
      Compressor Speed

      Compressor speed /

      Min.: 0 rpm

      Max.: 65535 rpm

      Displays actual rotation speed in the range between 0 rpm and 10000 rpm -
      Compressor Target Speed

      Compressor target speed /

      Min.: 0 rpm

      Max.: 65535 rpm

      Displays actual rotation speed in the range between 0 rpm and 10000 rpm -
      Electric Heater Active Level*1

      Heater active level /

      Min.: 0

      Max.: 3

      Actual electric heater active level displayed -
      ECO Switch

      ECO MODE switch /

      OFF or ON

      OFF: ECO MODE switch off

      ON: ECO MODE switch on

      -
      Solar Ventilation Switch*2

      Solar ventilation switch (Switch recognition value at A/C amplifier side) /

      OFF or ON

      OFF: solar ventilation switch off

      ON: solar ventilation switch on

      -
      Number of Trouble Codes

      Number of trouble codes /

      Min.: 0

      Max.: 255

      Number of DTCs displayed -

      • *1: w/ PTC Heater Assembly

      • *2: w/ Solar Ventilation System

  2. ACTIVE TEST

    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 power switch on (IG).

    3. Turn the intelligent tester on.

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

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

      Air Conditioner
      Tester Display Test Part Control Range Diagnostic Note
      Blower Motor Blower motor Min.: 0, Max.: 31 -
      Compressor Target Speed Compressor with motor assembly Min.: 0, Max.: 10000 -
      Water Pump Engine water pump OFF or ON -
      Electrical Fan Electrical fan OFF or ON -
      Heater Active Level*1 Heater active level Min.: 0, Max.: 3 -
      Defogger Relay (Rear) Defogger relay (Rear) OFF or ON -
      Mirror Heater Relay (Front) Mirror heater relay (Front) OFF or ON -
      Air Mix Servo Targ Pulse (D) Air mix servo motor pulse Min.: 0, Max.: 255 -
      Air Outlet Servo Pulse (D) Air outlet servo motor pulse Min.: 0, Max.: 255 -
      Air Inlet Damper Targ Pulse Air inlet damper target pulse Min.: 0, Max.: 255 -

      • *1: w/ PTC Heater Assembly