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

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DATA LIST

HINT:
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.

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 on (IG).

  3. Turn the intelligent tester on.

  4. Enter the following menus: Body / Air Conditioner / Data List.

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

    Air Conditioner 
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    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)
    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 after engine warmed up
    		-
    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
    		Open in the circuit: -29.7°C (-21.46°F)
    Short in the circuit: 59.55°C (139.19°F)
    Regulator Pressure Sensor
    		Regulator pressure sensor /
    Min.: -0.45668 MPaG
    Max.: 3.29437 MPaG
    		Actual regulator pressure displayed
    		-
    Regulator Control Current
    		Compressor assembly with pulley /
    Min.: 0 A
    Max.: 0.997 A
    		Value changes between 0 A and 0.997 A in accordance with compressor operation
    		-
    Electric Heater Count
    		Electric (PTC) heater count/
    Min.: 0
    Max.: 3
    		Actual number of the heater elements to be heated is displayed
    		-
    Number of Trouble Codes
    		Number of trouble codes /
    Min.: 0, Max.: 255
    		Number of DTCs displayed
    		-

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 on (IG).

  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.

    Air Conditioner 
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Electric Heater 1
    		PTC heater No. 1 relay
    		ON or OFF
    		-
    Electric Heater 2
    		PTC heater No. 2 relay
    		ON or OFF
    		-
    Electric Heater 3*
    		PTC heater No. 3 relay
    		ON or OFF
    		-
    *: w/o Combustion Type Power Heater