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

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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 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
   Room Temperature Sensor	Room temperature sensor / Min.: -6.5°C (20.3°F), Max.: 57.25°C (135.05°F)	Actual room temperature for front seat is displayed	Open in circuit: -6.5°C (20.3°F) Short in circuit: 57.25°C (135.05°F)
   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	-
   Solar Sensor (D Side)	Driver side solar sensor / Min.: 0, Max.: 255	Driver side solar sensor voltage increases as brightness increases	Open in circuit: 0 Short in circuit: 255
   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	-
   Set Temperature (D Side)	Driver side set temperature / Min.: MAX COLD (0°C (32°F)), Max.: MAX HOT (30°C (86°F))	Driver side actual set temperature is displayed	-
   Blower Motor Speed Level	Blower motor speed level / Min.: 0 level, Max.: 31 level	Increases in range between 0 and 31 as blower motor speed increases	-
   Regulator Pressure Sensor	Refrigerant 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	-
   Air Mix Servo Targ Pulse (D)	Driver side air mix servo motor target pulse / Min.: 0, Max.: 255	MAX. COLD: 8 (pulse) MAX. HOT: 65 (pulse)	-
   Air Outlet Servo Pulse (D)	Driver side air outlet target pulse / Min.: 0, Max.: 255	FACE: 114 (pulse) B/L: 89 (pulse) FOOT: 66 (pulse) FOOT/DEF: 43 (pulse) DEF: 18 (pulse)	-
   Air Inlet Damper Targ Pulse	Air inlet damper target pulse / Min.: 0, Max.: 255	for LHD RECIRCULATION: 45 (pulse) FRESH: 30 (pulse) for RHD RECIRCULATION: 16 (pulse) FRESH: 32 (pulse)	-
   Electric Heater Count	Number of electric heaters operating / Min.: 0, Max.: 3	-	-
   Shift Set Temperature	Shift set temperature / +2 C, +1 C, NORMAL, -1 C, -2 C	Customized value will be displayed	-
   Air Inlet Mode	Air inlet mode / AUTO, MANUAL	Customized value will be displayed	-
   Compressor Mode	Compressor mode / AUTO, MANUAL	Customized value will be displayed	-
   Compressor/DEF Mode	Compressor/DEF mode / LINK, NORMAL	Customized value will be displayed	-
   Evaporator Control	Evaporator control / AUTO, MANUAL	Customized value will be displayed	-
   ECO MODE Cancel	ECO mode cancel / OFF, ON	Customized value will be displayed	-
   Foot/DEF Auto Mode	FOOT/DEF auto mode / ON, OFF	Customized value will be displayed	-
   Foot/DEF Auto Blow Up	FOOT/DEF auto blower up function / ON, OFF	Customized value will be displayed	-
   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	-

   
   

   Engine 

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   A/C Signal	A/C signal / ON or OFF	ON: A/C on OFF: A/C off	-

   
   

   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	-

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	Diagnostic Note
   Blower Motor	Blower motor	Min.: 0, Max.: 31	-
   Magnetic Clutch Relay	Magnetic clutch relay	OFF, ON	-
   Defogger Relay (Rear)	Defogger relay (Rear)	OFF, ON	-
   Heater Active Level	Heater level	Min.: 0, Max.: 3	-
   Air Mix Servo Targ Pulse (D)	Driver side air mix servo motor pulse	Min.: 0, Max.: 255	-
   Air Outlet Servo Pulse (D)	Driver side air outlet servo motor pulse	Min.: 0, Max.: 255	-
   Air Inlet Damper Targ Pulse	Air inlet damper target pulse	Min.: 0, Max.: 255	-