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


  1. READ DATA LIST

    Tech Tips

    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.


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch on (IG) and turn the intelligent tester on.

    3. Read the Data List by following the prompts on the tester.

      Data List / Air Conditioner:
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Room Temp

      Room temperature sensor /

      Min.: -6.5°C (20.3°F)

      Max.: 57.25°C (135.05°F)

      		 Actual cabin temperature is displayed -
      Ambi Temp Sens

      Ambient temperature sensor /

      Min.: -23.3°C (-9.94°F)

      Max.: 65.94°C (150.71°F)

      		 Actual ambient temperature is displayed -
      Solar Sens-D

      Driver side solar sensor /

      Min.: 0, Max.: 255

      		 Driver side solar sensor value increases as brightness increases -
      Solar Sens-P

      Passenger side solar sensor /

      Min.: 0, Max.: 255

      		 Front passenger side solar sensor value increases as brightness increases -
      Coolant Temp

      Engine coolant temperature sensor /

      Min.: 1.3°C (34.34°F)

      Max.: 90.55°C (194.99°F)

      		 Actual engine coolant temperature is displayed -
      Set Temp-D

      Driver side set temperature /

      Min.: 0°C (32°F)

      Max.: 30°C (86°F)

      		 Driver side actual set temperature is displayed -
      Set Temp-P

      Passenger side set temperature /

      Min.: 0°C (32°F)

      Max.: 30°C (86°F)

      		 Front passenger side actual set temperature is displayed -
      Blower Level

      Blower motor speed level /

      Min.: 0, Max.: 31

      		 Increases in range between 0 and 31 as blower motor speed increases -
      Air Mix Pulse-D

      Driver side air mix control servo motor target pulse /

      Min.: 0, Max.: 255

      • LHD:

        MAX COLD: 5 (pulse)

        MAX HOT: 103 (pulse)


      • RHD:

        MAX COLD: 105 (pulse)

        MAX HOT: 7 (pulse)

      		 -
      Air Mix Pulse-P

      Passenger side air mix control servo motor target pulse /

      Min.: 0, Max.: 255

      • LHD:

        MAX COLD: 105 (pulse)

        MAX HOT: 7 (pulse)


      • RHD:

        MAX COLD: 5 (pulse)

        MAX HOT: 103 (pulse)

      		 -
      Air Out Pulse-D

      Driver side air outlet control servo motor target /

      Min.: 0, Max.: 255

      FACE: 8 (pulse)

      B/L: 30 (pulse)

      FOOT: 67 (pulse)

      FOOT/DEF: 80 (pulse)

      DEF: 97 (pulse)

      		 -
      A/I Damp Targ Pls

      Air inlet damper target pulse /

      Min.: 0, Max.: 255

      RECIRCULATION: 7 (pulse)

      FRESH: 28 (pulse)

      		 -
      Evap Fin Temp

      Evaporator temperature sensor /

      Min.: -29.7°C (-21.46°F)

      Max.: 59.55°C (139.19°F)

      		 Actual evaporator temperature is displayed -
      Reg Press Sens

      Regulator pressure sensor /

      Min.: 0 kgf/cm2G

      Max.: 38.25 kgf/cm2G

      		 Actual regulator pressure is displayed -
      Reg Ctrl Currnt

      Regulator control current /

      Min.: 0 A

      Max.: 0.997 A

      		 Value changes between 0 A and 0.997 A in accordance with compressor operation -
      Rear Room Temp

      Rear room temperature sensor /

      Min.: -6.5°C (20.3°F)

      Max.: 57.25°C (135.05°F)

      		 Actual rear cabin temperature is displayed -
      Set Temp Rear

      Rear side set temperature /

      Min.: 0

      Max.: 255

      		 Rear side actual rear set temperature is displayed -
      Blower Level-R

      Rear blower motor speed level /

      Min.; 0, Max.: 31

      		 Increases in range between 0 and 31 as rear blower motor speed increases -
      Air Out Pulse-R

      Rear side air outlet control servo motor target pulse /

      Min.: 0, Max.: 255

      Rr FACE: 83 (pulse)

      Rr B/L: 38 (pulse)

      Rr FOOT: 7 (pulse)

      		 -
      Air Mix Pulse-R

      Rear side air mix control servo motor target pulse /

      Min.: 0, Max.: 255

      • LHD:

        MAX COLD: 9 (pulse)

        MAX HOT: 54 (pulse)


      • RHD:

        MAX COLD: 9 (pulse)

        MAX HOT: 54 (pulse)

      		 -
      R-Evap Temp Sen

      Rear Evaporator temperature sensor /

      Min.: -29.7°C (-21.46°F)

      Max.: 59.55°C (139.19°F)

      		 Actual evaporator temperature is displayed -
      #Codes

      Number of trouble codes /

      Min.: 0, Max.: 255

      		 Number of DTCs displayed -

  2. PERFORM ACTIVE TEST

    Tech Tips

    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 on (IG) and turn the intelligent tester on.

    3. Perform the Active Test by following the prompts on the tester.

      Active Test / Air Conditioner:
      Tester Display Test Part Control Range Diagnostic Note
      Blower Motor Blower motor Min.: 0, Max.: 31 -
      A/C Mag Clutch Magnetic clutch relay OFF, ON -
      Defogger Rly-R Defogger relay (Rear) OFF, ON -
      Electric Heater1 PTC heater 1 OFF, ON -
      Electric Heater2 PTC heater 2 OFF, ON -
      Electric Heater3 PTC heater 3 OFF, ON -
      Air Mix Pulse-D Air mix servo motor pulse (D side)

      • LHD:

        Min.: 5, Max.: 103


      • RHD:

        Min.: 7, Max.: 105

      		 -
      Air Mix Pulse-P Air mix servo motor pulse (P side)

      • LHD:

        Min.: 7, Max.: 105


      • RHD:

        Min.: 5, Max.: 103

      		 -
      Air Out Pulse-D Air outlet servo motor pulse (D side) Min.: 8, Max.: 97 -
      A/I Damp Targ Pls Air inlet damper target pulse Min.: 7, Max.: 28 -
      R Blower Motor Rear blower motor Min.: 0, Max.: 31 -
      R Air Mix Pulse Rear air mix control servo motor pulse Min.: 9, Max.: 54 -