Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Lexus >> 2007 >> IS 250 AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Air Conditioning >> Air Conditioning System >> Data List / Active Test

Data List / Active Test

  1. DATA LIST 

    HINT:

    Using the intelligent tester's DATA LIST allows switch, sensor, actuator, and other item values to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to save time.

    1. Connect the intelligent tester to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the tester on.
    4. Enter the following menus: DIAGNOSIS / OBD/ MOBD / AIR CONDITIONER / DATA LIST.
    5. Check the value(s) by referring to the table below.

    AIR CONDITIONER 

    AIR CONDITIONER

    Item Measurement Item / Display (Range) Normal Condition Diagnostic Note
    ROOM TEMP (Room temperature sensor) Room temperature sensor / Min.: -6.5°C (20.3°F), Max.: 57.25°C (135.05°F) Actual cabin temperature is displayed -
    AMBI TEMP SENS (Ambient temperature sensor) Ambient temperature sensor / Min.: -23.3°C (-9.94°F), Max.: 65.95°C (150.71°F) Actual ambient temperature is displayed -
    EVAP TEMP (Evaporator temperature sensor) Evaporator temperature sensor / Min.: -29.7°C (-21.46°F), Max.: 59.55°C (139.19°F) Actual evaporator temperature is displayed -
    SOLAR SENS-D (Solar Sensor (D side)) Driver side solar sensor / Min.: 0, Max.: 255 Driver side temperature increases as brightness increases -
    SOLAR SENS-P (Solar Sensor (P side)) Passenger side solar sensor / Min.: 0, Max.: 255 Passenger side temperature increases as brightness increases -
    COOLANT TEMP (Engine coolant temperature) 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 TEMP-D (Set temperature (D - side)) Driver side set temperature / Min.: 0, Max.: 255 Driver side set temperature is displayed -
    SET TEMP-P (Set temperature (P - side)) Passenger side set temperature / Min.: 0, Max.: 255 Passenger side set temperature is displayed -
    ESTIMATE TEMP-D (Estimated temperature (D side)) Driver side estimated temperature / Min.: -358.4°C (-613.12°F), Max.: 358.4°C (677.12°F) Driver side estimated temperature is displayed -
    ESTIMATE TEMP-P (Estimated temperature (P side)) Passenger side estimated temperature / Min.: -358.4°C (-613.12°F), Max.: 358.4°C (677.12°F) Passenger side estimated temperature is displayed -
    HAND FREE TEL (Hand free telephone) Hands free telephone / OFF or ON - -
    BLOWER LEVEL (Blower motor speed level) Blower motor speed level / Min.: 0 level, Max.: 31 level Increases in the range between 0 and 31 as the blower motor speed increases -
    AMBI TEMP (Adjusted ambient temperature) Adjusted ambient temperature / Min.: -30.8°C (-23.44°F), Max.: 50.8°C (123.44°F) - -
    EMISS GAS SENS (Emission gas sensor) Emission gas / Min.: 0 V, Max.: 255 V Smog ventilation sensor value increases as gas amount increases -
    SET TEMP SHIFT (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) Air inlet mode / AUTO, MANUAL Customized value will be displayed -
    COMPRESSOR MODE (Compressor mode) Compressor mode / AUTO, MANUAL Customized value will be displayed -
    COMPRS/ DEF OPER (Compressor/ DEF operation mode) Compressor / DEF mode / LINK, NORMAL Customized value will be displayed -
    EVAP CTRL (Evaporator Control) Evaporator control / AUTO, MANUAL Customized value will be displayed -
    GAS SENS SHIFT (Emission Gas Sensor Shift) Emission gas sensor shift / MU MORE, MORE, LI MORE, NORMAL, LI LESS, LESS, MU LESS Customized value will be displayed -
    BUTTON PRS BUZ (Button press buzzer) Button press buzzer / ON, OFF Customized value will be displayed -
    FOOT AIR LEAK (Foot air leak) Foot air leak / ON, OFF Customized value will be displayed -
    AUTO BLOW UP (Foot / DEF automatic blower up function) Foot / DEF auto blower up function / ON, OFF Customized value will be displayed -
    FOOT / DEF MODE (Foot /DEF auto mode) Foot / DEF auto mode / ON, OFF Customized value will be displayed -
    AMBIENT TMP SFT (Ambient temperature Shift) Ambient temperature shift / +3 C, +2 C, +1 C, NORMAL, -1 C, -2 C, -3 C Customized value will be displayed -
    DESTINATION (Destination) Destination / DOMEST, USA, EUROPE, AUSTRAL, MIDEAST, NO INFO Value changes with destinations -
    NOX GAS SENS (Emission gas Nox sensor) Emission gas / Min.: 0, Max.: 255 Smog ventilation sensor value increases as gas amount increases -
    REG PRESS SENS (Regulator pressure sensor) Regulator pressure sensor / Min.: 0, Max.: 255 Actual regulator pressure is displayed -
    REG CTRL CURRNT (Regulator control current) Regulator control current / Min.: 0 A, Max.: 255 A - -
    AIR MIX PULSE-D (Air mix servomotor target pulse (D side)) Driver side air mix servo motor target pulse / Min.: 0, Max.: 255 MAX. COLD: 5 (pulse)
    MAX. HOT: 104 (pulse)    		 -
    AIR MIX PULSE-P (Air mix servomotor target pulse (P side)) Passenger side air mix servo motor target pulse / Min.: 0, Max.: 255 MAX. COLD: 105 (pulse)
    MAX. HOT: 6 (pulse)    		 -
    AIR OUT PULSE-D (Air Out Pulse-D) Driver side air outlet servo motor target pulse / Min.: 0, Max.: 255 FACE: 9 to 17 (pulse)
    B/L: 32 to 38 (pulse)
    FOOT: 45 to 70 (pulse)
    FOOT/DEF: 84 (pulse)
    DEF: 97 (pulse)    		 -
    A/I DAMP PLS (Air inlet damper target pulse) Air inlet damper target pulse / Min.: 0, Max.: 255 RECIRCULATION: 31 (pulse) FRESH: 7 (pulse) -
    A/B DAMP PLS (Cool air bypass pulse) Driver side cool air bypass pulse / Min.: 0, Max.: 255 CLOSE: 50 (pulse)
    OPEN: 8 (pulse)    		 -
    #CODES (Number of trouble codes) Number of trouble codes / Min.: 0, Max.: 255 Number of DTCs will be displayed -

    ECM 

    ITEM NORMAL CONDITION REFERENCE

    Item Measurement Item / (Range) Display Normal Condition Diagnostic Note
    A/C SIG (A/C Signal) A/C signal / ON or OFF ON: A/C ON
    OFF: A/C OFF    		 -
    A/C MAG CLUTCH (A/C magnetic clutch relay) A/C magnetic clutch relay / OFF, ON ON: A/C magnetic clutch ON
    OFF: A/C magnetic clutch OFF    		 -
  2. ACTIVE TEST 

    HINT:

    Performing the intelligent tester's ACTIVE TEST allows relays, VSVs, actuators and other items to be operated without removing any parts. Performing the ACTIVE TEST early in troubleshooting is one way to save time. The DATA LIST can be displayed in the ACTIVE TEST.

    1. Connect the intelligent tester to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the tester on.
    4. Enter the following menus: DIAGNOSIS / OBD/ MOBD / AIR CONDITIONER / ACTIVE TEST.
    5. Perform the ACTIVE TEST by referring to the table below.

    AIR CONDITIONER 

    AIR CONDITIONER

    Item Test Details / Display (Range) Diagnostic Note
    BLOWER MOTOR (Blower motor) Blower motor / Min.: Level 0, Max.: Level 31 -
    A/C MAG CLUTCH (Magnetic clutch relay) Magnetic clutch relay / OFF, ON -
    DEFOGER RLY-R (Defogger Relay (Rear)) Defogger relay (Rear) / OFF, ON -
    HEATER1 (Electric Heater 1) Electric Heater 1 / OFF, ON -
    HEATER2 (Electric Heater 2) Electric Heater 2 / OFF, ON -
    AIR MIX PULSE-D (Air mix servomotor pulse (D side)) Driver side air mix servo motor pulse / Min.: 0, Max.: 255 -
    AIR MIX PULSE-P (Air mix servomotor pulse (P side)) Passenger side air mix servo motor pulse / Min.: 0, Max.: 255 -
    AIR OUT PULSE-D (Air outlet servomotor pulse (D side) Driver side air outlet servo motor pulse / Min.: 0, Max.: 255 -
    A/I DAMP PLS (Air inlet damper target pulse) Air inlet damper target pulse / Min.: 0, Max.: 255 -
    A/B DAMP PLS (Cool air bypass pulse) Cool air bypass pulse / Min.: 0, Max.: 255 -

    ECM 

    ITEM AIR CONDITIONER REFERENCE

    Item Test Details / Display (Range) Diagnostic Note
    A/C MAG CLUTCH Magnetic clutch relay / OFF, ON -
scientia non olet · About Mike's Workshop Manuals