Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - HEATING / AIR CONDITIONING


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

  • 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.
DATA LIST

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.

Enter the following menus: Powertrain / Engine and ECT / Data List.

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

Air Conditioner
Tester DisplayMeasurement Item/RangeNormal ConditionDiagnostic Note
Ambient Temp SensorCooler thermistor (ambient temperature sensor) /
Min.: -23.3°C (-9.94°F)
Max.: 65.95°C (150.71°F)
Actual ambient temperature displayedOpen in the circuit: -23.3°C (-9.94°F).
Short in the circuit: 65.95°C (150.71°F).
Adjusted Ambient TempAdjusted ambient temperature /
Min.: -30.8°C (-23.44°F)
Max.: 50.8°C (123.44°F)
Adjusted ambient temperature displayed-
Evaporator Fin ThermistorNo. 1 cooler thermistor /
Min.: -29.7°C (-21.46°F)
Max.: 59.55°C (139.19°F)
Actual evaporator temperature displayedOpen in the circuit: -29.7°C (-21.46°F).
Short in the circuit: 59.55°C (139.19°F).
Engine Coolant TempEngine coolant temperature /
Min.: 1.3°C (34.34°F)
Max.: 90.55°C (194.99°F)
Actual engine coolant temperature displayed while engine warmed up-
Blower Motor Speed LevelBlower with fan motor sub-assembly speed level /
Min.: 0 level,
Max.: 31 level
Increases in range between 0 and 31 as blower with fan motor sub-assembly speed increases-
Regulator Pressure SensorAir conditioner pressure sensor /
Min.: -0.4566 MPaG
Max.: 3.2943 MPaG
Actual refrigerant pressure displayed-
Air Mix Servo Targ Pulse(D)No. 1 air conditioning radiator damper servo sub-assembly (air mix damper servo) target pulse /
Min.: 0, Max.: 255
for LHD
MAX. COOL: 90 (pulse)
MAX. HOT: 8 (pulse)
for RHD
MAX. COOL: 8 (pulse)
MAX. HOT: 90 (pulse)
-
Air Outlet Servo Pulse(D)No. 1 air conditioning radiator damper servo sub-assembly (mode damper servo) target pulse /
Min.: 0, Max.: 255
FACE: 117 (pulse)
B/L: 93 (pulse)
FOOT: 41 (pulse)
F/D: 18 (pulse)
DEF: 6 (pulse)
-
Air Inlet Damper Targ PulseNo. 1 blower damper servo sub-assembly target pulse /
Min.: 0, Max.: 255
for LHD
Recirculation: 37 (pulse)
Fresh: 9 (pulse)
for RHD
Recirculation: 9 (pulse)
Fresh: 37 (pulse)
-
Cool Air Bypass PulseNo. 1 air conditioning radiator damper servo sub-assembly (cooler bypass damper servo) target pulse /
Min.: 0, Max.: 255
Shut and DEF mode: 6 (pulse)
Shut: 28 (pulse)
Open: 57 (pulse)
-
Electric Heater Count*Number of electrical heaters operating /
Min.: 0, Max.: 3
Actual heater counts displayed-
Ambient Temperature ShiftAmbient temperature shift / +3 C, +2 C, +1 C, NORMAL, -1 C, -2 C, -3 CCustomized value displayed-
Number of Trouble CodesNumber of trouble codes /
Min.: 0, Max.: 255
Number of DTCs displayed-
Engine
Tester DisplayMeasurement Item/RangeNormal ConditionDiagnostic Note
A/C SignalAir conditioning signal / ON or OFF
ON: A/C switch on
OFF: A/C switch off
-
*: w/ PTC Heater
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.

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 the intelligent tester, perform the Active Test.

Tester DisplayTest PartControl RangeDiagnostic Note
Blower MotorBlower with fan motor sub-assemblyMin.: 0, Max.: 31-
Magnetic Clutch RelayMagnet clutch relayOFF or ON-
Heater Active Level*Quick heater assemblyMin.: 0, Max.: 3
Air Mix Servo Targ Pulse(D)No. 1 air conditioning radiator damper servo sub-assembly (air mix damper servo)Min.: 0, Max.: 255-
Air Outlet Servo Pulse(D)No. 1 air conditioning radiator damper servo sub-assembly (mode damper servo)Min.: 0, Max.: 255-
Air Inlet Damper Targ PulseNo. 1 blower damper servo sub-assemblyMin.: 0, Max.: 255-
Cool Air Bypass PulseNo. 1 air conditioning radiator damper servo sub-assembly (cooler bypass damper servo)Min.: 0, Max.: 255-
*: w/ PTC Heater