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 engine 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)

      Driver side solar sensor /

      Min.: 0

      Max.: 255

      		 Driver side solar sensor value increases as brightness increases -
      Solar Sensor (P side)

      Passenger side solar sensor /

      Min.: 0

      Max.: 255

      		 Passenger side 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)

      Driver side set temperature /

      Min.: 18°C (65°F)

      Max.: 32°C (85°F)

      		 Driver side actual set temperature displayed -
      Set Temperature (P side)

      Passenger side set temperature /

      Min.: 18°C (65°F)

      Max.: 32°C (85°F)

      		 Passenger side actual set temperature displayed -
      Blower Motor Speed Level

      Blower motor speed level /

      Min.: 0

      Max.: 31

      		 Increases in range between 0 and 31 as blower motor speed increases -
      Emission Gas Nox Sensor

      Emission gas (NOx) /

      Min.: 0

      Max.: 255

      Smog ventilation sensor value

      increases as gas amount

      increases

      		 -
      Emission Gas Sensor

      Emission gas (HC, CO) /

      Min.: 0

      Max.: 255

      Smog ventilation sensor value

      increases as gas amount

      increases

      		 -
      Regulator Pressure Sensor

      Air conditioning pressure sensor /

      Min.: -0.45668 MPaG

      Max.: 3.29437 MPaG

      		 Actual regulator pressure displayed -
      Regulator Control Current

      Regulator control current /

      Min.: 0 A

      Max.: 0.997 A

      		 Value changes between 0 A and 0.997 A in accordance with compressor and magnetic clutch operation -
      Room Temp Sensor (Rear)

      Rear room temperature sensor /

      Min.: -6.5°C (20.3°F)

      Max.: 57.25°C (135.05°F)

      		 Actual rear cabin temperature displayed -
      Ambient Temp Sens (Rear)

      Rear evaporator temperature sensor /

      Min.: -29.7°C (-21.46°F)

      Max.: 59.55°C (139.19°F)

      		 Actual rear evaporator temperature displayed -
      Set Temperature (Rear)

      Rear set temperature /

      Min.: 18°C (65°F)

      Max.: 32°C (85°F)

      		 Actual rear set temperature displayed -
      Blower Motor Level (Rear)

      Rear blower motor speed level /

      Min.: 0

      Max.: 31

      		 Increases in range between 0 and 31 as rear blower motor speed increases -
      Humidity Sensor

      Humidity sensor /

      Min.: 0%

      Max.: 100%

      		 Actual cabin humidity displayed -
      Air Outlet Servo Pulse (R)

      Rear air outlet servo motor target pulse /

      Min.: 0

      Max.: 255

      FACE: 95 (pulse)

      B/L: 53 (pulse)

      FOOT: 19 (pulse)

      		 -
      Air Outlet Servo Actu Pulse (R)

      Rear air outlet servo motor actual pulse /

      Min.: 0

      Max.: 255

      FACE: 95 (pulse)

      B/L: 53 (pulse)

      FOOT: 19 (pulse)

      		 -
      Air Mix Servo Targ Pulse (R)

      Rear air mix servo motor target pulse /

      Min.: 0

      Max.: 255

      MAX. COLD: 21 (pulse)

      MAX. HOT: 66 (pulse)

      		 -
      Air Mix Servo Actual Pulse (R)

      Rear air mix servo motor actual pulse /

      Min.: 0

      Max.: 255

      MAX. COLD: 21 (pulse)

      MAX. HOT: 66 (pulse)

      		 -
      Air Mix Servo Targ Pulse (D)

      Driver side air mix servo motor target pulse /

      Min.: 0

      Max.: 255

      for RHD:

      MAX. COLD: 117 (pulse)

      MAX. HOT: 19 (pulse)

      for LHD:

      MAX. COLD: 17 (pulse)

      MAX. HOT: 115 (pulse)

      		 -
      Air Mix Servo Actual Pulse (D)

      Driver side air mix servo motor actual pulse /

      Min.: 0

      Max.: 255

      for RHD:

      MAX. COLD: 117 (pulse)

      MAX. HOT: 19 (pulse)

      for LHD:

      MAX. COLD: 17 (pulse)

      MAX. HOT: 115 (pulse)

      		 -
      Air Mix Servo Targ Pulse (P)

      Passenger side air mix servo motor target pulse /

      Min.: 0

      Max.: 255

      for RHD:

      MAX. COLD: 17 (pulse)

      MAX. HOT: 115 (pulse)

      for LHD:

      MAX. COLD: 117 (pulse)

      MAX. HOT: 19 (pulse)

      		 -
      Air Mix Servo Actual Pulse (P)

      Passenger side air mix servo motor actual pulse /

      Min.: 0

      Max.: 255

      for RHD:

      MAX. COLD: 17 (pulse)

      MAX. HOT: 115 (pulse)

      for LHD:

      MAX. COLD: 117 (pulse)

      MAX. HOT: 19 (pulse)

      		 -
      Air Outlet Servo Pulse (D)

      Air outlet servo motor target pulse /

      Min.: 0

      Max.: 255

      FACE: 20(pulse)

      B/L: 42 to 50 (pulse)

      FOOT: 96 (pulse)

      FOOT/DEF: 92 (pulse)

      DEF: 109 (pulse)

      		 -
      Air Outlet Servo Actu Pulse (D)

      Air outlet servo motor actual pulse /

      Min.: 0

      Max.: 255

      FACE: 20 (pulse)

      B/L: 42 to 50 (pulse)

      FOOT: 96 (pulse)

      FOOT/DEF: 92 (pulse)

      DEF: 109 (pulse)

      		 -
      Air Inlet Damper Targ Pulse

      Air inlet servo motor target pulse /

      Min.: 0

      Max.: 255

      RECIRCULATION: 19 (pulse)

      FRESH: 40 (pulse)

      		 -
      Air Inlet Damper Actual Pulse

      Air inlet servo motor actual pulse /

      Min.: 0

      Max.: 255

      RECIRCULATION: 19 (pulse)

      FRESH: 40 (pulse)

      		 -
      Set Temperature

      Rear driver side set temperature /

      Min.: 18°C (65°F)

      Max.: 32°C (85°F)

      		 Rear driver side actual set temperature displayed -
      Estimated Temp

      Rear driver side estimated temperature /

      Min.: -358.4°C (-613.12°F)

      Max.: 358.4°C (677.12°F)

      		 Rear driver side estimated temperature displayed -
      ECO Switch

      ECO mode switch (eco switch assembly) /

      OFF or ON

      OFF: ECO mode switch (eco switch assembly) not operated

      ON: ECO mode switch (eco switch assembly) operated

      		 -
      Number of Trouble Codes

      Number of trouble codes /

      Min.: 0

      Max.: 255

      		 Number of DTCs displayed -

  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 engine 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 -
      Magnetic Clutch Relay A/C compressor OFF, ON -
      Defogger Relay (Relay) Defogger relay (Rear) OFF, ON -
      Heater Active Level*1 Heater Active Level Min.: 0, Max.: 3 -
      Air Mix Servo Targ Pulse (D) Air mix servo motor pulse (D side) Min.: 0, Max.: 255 -
      Air Mix Servo Targ Pulse (P) Air mix servo motor pulse (P side) 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 -
      Rear Blower Motor Rear blower motor Min.: 0, Max.: 31 -
      Rear Air Mix Servo Targ Pulse Rear air mix servo motor pulse Min.: 0, Max.: 255 -
      A/O Servo Pulse (Rr D) Rear air outlet servo motor pulse (D side) Min.: 0, Max.: 255 -
      Ion Generator No. 1 ion generator sub-assembly*2 or No. 2 ion generator sub-assembly*3 OFF, ON -

      • *1: w/ PTC Heater Assembly

      • *2: w/ No. 1 Ion Generator Sub-assembly

      • *3: w/ No. 2 Ion Generator Sub-assembly