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.: -6.50°C (20.30°F)

      Max.: 57.25°C (135.05°F)

      		 Actual cabin temperature displayed -
      Ambient Temp Sensor

      Ambient temperature sensor /

      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 Temp Sensor

      Evaporator temperature sensor /

      Min.: -29.70°C (-21.46°F)

      Max.: 59.55°C (139.19°F)

      		 Actual evaporator temperature displayed -
      Evaporator Fin Thermistor

      Evaporator temperature sensor /

      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 -
      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.: 1.30°C (34.34°F)

      Max.: 90.55°C (194.99°F)

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

      Driver side set temperature /

      for Europe:

      Min.: 16°C (65°F)

      Max.: 30°C (85°F)

      except Europe:

      Min.: 18°C (65°F)

      Max.: 32°C (85°F)

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

      Passenger side set temperature /

      for Europe:

      Min.: 16°C (65°F)

      Max.: 30°C (85°F)

      except Europe:

      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

      		 Displayed speed level increases in range between 0 and 31 as blower motor speed increases -
      Emission Gas Nox Sensor*1

      Emission gas /

      Min.: 0

      Max.: 255

      		 Smog ventilation sensor value increases as gas amount increases -
      Emission Gas Sensor*1

      Emission gas /

      Min.: 0

      Max.: 255

      		 Smog ventilation sensor value increases as gas amount increases -
      Regulator Pressure Sensor

      Air conditioning pressure sensor /

      Min.: -0.4566 MPaG

      Max.: 3.2943 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 -
      Air Mix Servo Targ Pulse(D)

      Driver side air mix servo motor target pulse /

      Min.: 0

      Max.: 255

      for LHD:

      MAX. COLD: 5 (pulse)

      MAX. HOT: 103 (pulse)

      for RHD:

      MAX. COLD: 105 (pulse)

      MAX. HOT: 7 (pulse)

      		 -
      Air Mix Servo Actual Pulse(D)

      Driver side air mix servo motor actual pulse /

      Min.: 0

      Max.: 255

      for LHD:

      MAX. COLD: 5 (pulse)

      MAX. HOT: 103 (pulse)

      for RHD:

      MAX. COLD: 105 (pulse)

      MAX. HOT: 7 (pulse)

      		 -
      Air Mix Servo Targ Pulse(P)

      Passenger side air mix servo motor target pulse /

      Min.: 0

      Max.: 255

      for LHD:

      MAX. COLD: 105 (pulse)

      MAX. HOT: 7 (pulse)

      for RHD:

      MAX. COLD: 5 (pulse)

      MAX. HOT: 103 (pulse)

      		 -
      Air Mix Servo Actual Pulse(P)

      Passenger side air mix servo motor actual pulse /

      Min.: 0

      Max.: 255

      for LHD:

      MAX. COLD: 105 (pulse)

      MAX. HOT: 7 (pulse)

      for RHD:

      MAX. COLD: 5 (pulse)

      MAX. HOT: 103 (pulse)

      		 -
      Air Outlet Servo Pulse (D)

      Air outlet servo motor target pulse /

      Min.: 0

      Max.: 255

      FACE: 8 (pulse)

      B/L: 30 to 38 (pulse)

      FOOT: 50 to 74 (pulse)

      FOOT/DEF: 80 (pulse)

      DEF: 97 (pulse)

      		 -
      Air Outlet Servo Actu Pulse(D)

      Air outlet servo motor actual pulse /

      Min.: 0

      Max.: 255

      FACE: 8 (pulse)

      B/L: 30 to 38 (pulse)

      FOOT: 50 to 74 (pulse)

      FOOT/DEF: 80 (pulse)

      DEF: 97 (pulse)

      		 -
      Air Inlet Damper Targ Pulse

      Air inlet servo motor target pulse /

      Min.: 0

      Max.: 255

      RECIRCULATION: 7 (pulse)

      FRESH: 28 (pulse)

      		 -
      Air Inlet Damper actual Pulse

      Air inlet servo motor actual pulse /

      Min.: 0

      Max.: 255

      RECIRCULATION: 7 (pulse)

      FRESH: 28 (pulse)

      		 -
      Shift Set Temperature

      Shift set temperature /

      2C decr, 1C decr, Normal, 1C incr, 2C incr

      		 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 -
      Emission Gas Sensor Shift

      Emission Gas Sensor Shift /

      Mu Less, Less, Li Less, Normal, Li More, More, Mu more

      		 Customized value displayed -
      ECO MODE Cancel

      ECO MODE Cancel /

      OFF or ON

      		 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 speed increase /

      ON or OFF

      		 Customized value displayed -
      Pls Servo Test Sts

      Pulse servo motor test status/

      Wait, Move, Comp, Error, Stop

      		 Pulse servo motor test status -
      Flow Sensor

      A/C mass flow sensor /

      Min.: 0.00 V

      Max.: 5.00 V

      A/C on, Blower switch HI: 0.70 to 3.80 V

      A/C off, Blower switch off: 3.80 to 4.20 V

      		 A/C mass flow sensor is malfunctioning when a constant value between 0.70 and 4.20 V is displayed continuously for more than 4 seconds.
      A/C Cutoff Signal

      A/C control cutoff signal /

      OFF or ON

      A/C switch on: OFF

      A/C switch off: ON

      		 -
      Number of Trouble Codes

      Number of trouble codes /

      Min.: 0

      Max.: 255

      		 Number of DTCs displayed -

      • *1: w/ Smog Ventilation Sensor

  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 (Rear) Defogger relay (Rear) OFF, ON -
      Deicer Relay (Front) Deicer relay (Front) OFF, ON -
      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 -