AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System) DATA LIST / ACTIVE TEST
-
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.
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.
-
Connect the intelligent tester to the DLC3.
-
Turn the ignition switch to ON.
-
Turn the intelligent tester on.
-
Enter the following menus: Body / Air Conditioner / Data List.
-
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 -
-
-
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.
-
Connect the intelligent tester to the DLC3.
-
Turn the ignition switch to ON.
-
Turn the intelligent tester on.
-
Enter the following menus: Body / Air Conditioner / Active Test.
-
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 -
-