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

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READ DATA LIST

HINT:
Using an intelligent tester to read the Data List allows the values or states of switches, sensor, 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 by discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

NOTICE:
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.

  5. According to the display on tester, read the Data List.

    Air Conditioner 
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Evaporator Temp Thermistor
    		Evaporator fin thermistor /
    Min.: -29.7°C (-21.46°F)
    Max.: 59.55°C (139.19°F)
    		Actual evaporator temperature is displayed
    		-
    Evaporator Fin Thermistor
    		Evaporator fin thermistor /
    Min.: -29.7°C (-21.46°F),
    Max.: 59.55°C (139.19°F)
    		Actual evaporator temperature is displayed
    		Open in circuit: -29.7°C (- 21.46°F)
    Short in circuit: 59.55°C (139.19°F)
    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 /
    Min.: 1.3°C (34.34°F),
    Max.: 90.55°C (194.99°F)
    		Actual engine coolant temperature is displayed while engine is warmed up
    		-
    Regulator Pressure Sensor
    		Regulator pressure sensor /
    Min.: 0.45668 MPaG
    Max.: 3.29437 MPaG
    		Actual refrigerant pressure is displayed
    		-
    Regulator Control Current
    		Refrigerant 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
    		-
    Electric Heater Count
    		Number of electric heaters operating /
    Min.: 0, Max.: 3
    		-
    		-
    Flow Sensor
    		Flow sensor /
    Min.: 0.0 V,
    Max.: 5.0 V
    		Flow sensor voltage displayed
    		Open circuit: 4.7 V or more
    Short circuit: 0.3 V or less
    Number of Trouble Codes
    		Number of trouble codes /
    Min.: 0,
    Max.: 255
    		Number of DTCs will be displayed
    		-

    Combination Meter 
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Ambient Temperature
    		Ambient temperature /
    Min.: -40°C (-40°F)
    Max.: 87.5°C (189.5°F)
    		Actual ambient temperature is displayed
    		-


PERFORM ACTIVE TEST

HINT:
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 tester, perform the Active Test.

    Air Conditioner 
    Tester Display
    		Test Part
    		Control Range
    		Normal Condition
    Magnetic Clutch Relay
    		Magnetic clutch relay
    		ON, OFF
    		-
    Heater Active Level
    		Heater level
    		Min.: 0, Max.: 3
    		-