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

  1. DATA LIST

    Tip:

    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.

      Table 1. 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 room temperature for front seat displayed

      Open in the circuit: -6.5°C (20.3°F).

      Short in the circuit: 57.25°C (135.05°F).

      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

      -

      Solar Sensor (D Side)

      Solar sensor / Min.: 0, Max.: 255

      Driver side solar sensor voltage increases as brightness increases

      Open in the circuit: 0.

      Short in the circuit: 255.

      Solar Sensor (P Side)

      Solar sensor / Min.: 0, Max.: 255

      Passenger side solar sensor voltage increases as brightness increases

      Open in the circuit: 0.

      Short in the circuit: 255.

      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

      -

      Set Temperature (D Side)

      Driver side set temperature /

      MAX COLD: 0°C (32°F)

      MAX HOT: 30°C (86°F)

      Driver side set temperature displayed

      -

      Set Temperature (P Side)

      Passenger side set temperature /

      MAX COLD: 0°C (32°F)

      MAX HOT: 30°C (86°F)

      Passenger side set temperature displayed

      -

      Blower Motor Speed Level

      Blower with fan motor sub-assembly speed level / Min.: 0, Max.: 31

      Increases in range between 0 and 31 as blower with fan motor sub-assembly speed increases

      -

      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 / Min.: 0, Max.: 0.997

      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 control servo motor (for driver side) target pulse / Min.: 0, Max.: 255

      for LHD:

      • 92 (pulse): MAX COOL

      • 5 (pulse): MAX HOT

      for RHD:

      • 6 (pulse): MAX COOL

      • 93 (pulse): MAX HOT

      -

      Air Mix Servo Actual Pulse (D)

      Air mix control servo motor (for driver side) actual pulse / Min.: 0, Max.: 255

      for LHD:

      • 92 (pulse): MAX COOL

      • 5 (pulse): MAX HOT

      for RHD:

      • 6 (pulse): MAX COOL

      • 93 (pulse): MAX HOT

      -

      Air Mix Servo Targ Pulse (P)

      Air mix control servo motor (for front passenger side) target pulse / Min.: 0, Max.: 255

      for LHD:

      • 6 (pulse): MAX COOL

      • 93 (pulse): MAX HOT

      for RHD:

      • 92 (pulse): MAX COOL

      • 5 (pulse): MAX HOT

      -

      Air Mix Servo Actual Pulse (P)

      Air mix control servo motor (for front passenger side) actual pulse / Min.: 0, Max.: 255

      for LHD:

      • 6 (pulse): MAX COOL

      • 93 (pulse): MAX HOT

      for RHD:

      • 92 (pulse): MAX COOL

      • 5 (pulse): MAX HOT

      -

      Air Outlet Servo Pulse (D)

      Air outlet control servo motor target pulse / Min.: 0, Max.: 255

      47 (pulse): FACE

      37 (pulse): B/L

      18 (pulse): FOOT

      9 (pulse): F/D

      5 (pulse): DEF

      -

      Air Outlet Servo Actu Pulse (D)

      Air outlet control servo motor actual pulse / Min.: 0, Max.: 255

      47 (pulse): FACE

      37 (pulse): B/L

      18 (pulse): FOOT

      9 (pulse): F/D

      5 (pulse): DEF

      -

      Air Inlet Damper Targ Pulse

      Damper servo sub-assembly target pulse / Min.: 0, Max.: 255

      for LHD:

      • 19 (pulse): Recirculation

      • 7 (pulse): Fresh

      for RHD:

      • 7 (pulse): Recirculation

      • 25 (pulse): Fresh

      -

      Air Inlet Damper Actual Pulse

      Damper servo sub-assembly actual pulse / Min.: 0, Max.: 255

      for LHD:

      • 19 (pulse): Recirculation

      • 7 (pulse): Fresh

      for RHD:

      • 7 (pulse): Recirculation

      • 25 (pulse): Fresh

      -

      Electric Heater Count

      Electric (PTC) heater count / Min.: 0, Max.: 3

      Actual number of the heater elements to be heated is displayed

      w/ PTC Heater

      Electric Heater Active Count

      Electric (PTC) heater actual count / Min.: 0, Max.: 3

      Actual number of the heater elements to be heated is displayed

      w/ PTC Heater

      Shift Set Temperature

      Set temperature shift / 2C incr, 1C incr, Normal, 1C decr or 2C decr

      Customized value displayed

      -

      Air Inlet Mode

      Air inlet mode / Auto or Manual

      Customized value displayed

      -

      Compressor Mode

      Compressor mode / Auto or Manual

      Customized value displayed

      -

      Evaporator Control

      Evaporator control / Auto or Manual

      Customized value displayed

      -

      Fan speed increment control

      Fan speed increment control / Slow, Normal, Fast

      Customized value displayed

      -

      Foot/DEF Auto Mode

      Foot/Def auto mode / ON or OFF

      Customized value displayed

      -

      Foot/DEF Auto Blow Up

      Foot/Def auto blower level function / ON or OFF

      Customized value displayed

      -

      A/C Cutoff Signal

      Air conditioning control cutoff signal / OFF or ON

      OFF: Air conditioning control permitted

      ON: Air conditioning control not permitted

      -

      Refrigerant Gas Type

      Refrigerant gas type / R134a or 1234yf

      Refrigerant gas type displayed

      -

      Refrigerant Shortage Check

      Refrigerant gas volume check / ON, OFF

      Customized value displayed

      -

      Blower Operation Setting (Stop&Start)

      Blower level to be 1, when Stop and Start control operate / Blower off or Blower Level1

      Customized value displayed

      -

      Outside Air Mode Auto Switch Function

      Switches ON / OFF the function to switch the suction opening to the outside air mode automatically when the ignition switch is turned off / ON or OFF

      Customized value displayed

      -

      Number of Trouble Codes

      Number of trouble codes / Min.: 0, Max.: 255

      Number of DTCs displayed

      -
      Table 2. 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

    Tip:

    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.

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

      Table 3. Air Conditioner

      Tester Display

      Test Part

      Control Range

      Diagnostic Note

      Blower Motor

      Blower with fan motor sub-assembly

      Min.: 0, Max.: 31

      -

      Magnetic Clutch Relay

      Magnet clutch relay operation

      ON or OFF

      -

      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)

      Air mix control servo motor (for driver side) pulse

      Min.: 0, Max.: 255

      -

      Air Mix Servo Targ Pulse (P)

      Air mix control servo motor (for front passenger side) pulse

      Min.: 0, Max.: 255

      -

      Air Outlet Servo Pulse (D)

      Air outlet control servo motor pulse

      Min.: 0, Max.: 255

      -

      Air Inlet Damper Targ Pulse

      Damper servo sub-assembly target pulse

      Min.: 0, Max.: 255

      -

      • *: w/ PTC Heater