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 / Air Conditioner / Data List.

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

      Body Electrical > Air Conditioner > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Ambient Temp Sensor

      Thermistor assembly

      Min.: -23.30°C (-9.94°F)

      Max.: 65.95°C (150.71°F)

      Actual ambient temperature displayed

      -

      Adjusted Ambient Temp

      Adjusted ambient temperature

      Min.: -30.80°C (-23.44°F)

      Max.: 50.80°C (123.44°F)

      -

      -

      Evaporator Fin Thermistor

      No. 1 cooler thermistor

      Min.: -29.70°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

      -

      Engine Coolant Temp

      Engine coolant temperature sensor

      Min.: 1.30°C (34.34°F)

      Max.: 90.55°C (194.99°F)

      Actual engine coolant temperature displayed

      -

      Regulator Pressure Sensor

      Air conditioner pressure sensor

      Min.: -0.4566 MPaG

      Max.: 3.2943 MPaG

      Actual refrigerant pressure displayed

      -

      Regulator Control Current

      Solenoid valve control current

      Min.: 0 A

      Max.: 0.997 A

      Value changes between 0 A and 0.997 A in accordance with solenoid valve operation

      -

      Electric Heater Count

      Maximum PTC heater operation level

      Min.: 0

      Max.: 3

      Maximum possible operation of PTC heater displayed

      *1

      Electric Heater Active Level

      Actual PTC heater operation level

      Min.: 0

      Max.: 3

      Actual operation level of PTC heater displayed

      *1

      Refrigerant Shortage Check

      Refrigerant shortage check

      ON or OFF

      Customized value displayed

      -

      A/C Cutoff Signal

      A/C control cutoff signal

      OFF or ON

      The ECM sends the air conditioning control cutoff signal displayed

      -

      Refrigerant Gas Type

      Refrigerant gas type

      R134a or 1234yf

      Refrigerant gas type displayed

      -

      Number of Trouble Codes

      Number of trouble codes

      Min.: 0

      Max.: 255

      Number of DTCs displayed

      -

      • *1: w/ PTC heater

  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: Body Electrical / Air Conditioner / Active Test.

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

      Body Electrical > Air Conditioner > Active Test

      Tester Display

      Measurement Item

      Control Range

      Diagnostic Note

      Magnetic Clutch Relay

      A/C system operation

      OFF, ON

      -

      Heater Active Level

      Quick heater assembly

      Min.: 0, Max.: 3

      *1

      • *1: w/ PTC heater