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Home >> Lexus >> 2007 >> GS 430 >> 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. READ 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. Read the Data List according to the display on the tester.

    AIR CONDITIONER 

    DATA LIST CHART

    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 (126.95°F)    		 Actual room 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 actual set temperature is displayed -
    SET TEMP-P (Set temperature (P - side)) Passenger side set temperature /
    Min.: 0, Max.: 255    		 Passenger side actual 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 actual 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 actual 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    		 Increases as the 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, -3C Customized value will be displayed -
    DESTINATION (Destination) Destination / DOMEST, USA, EUROPE, AUSTRAL, MIDEAST, NO INFO Changes value with destinations -
    NOX GAS SENS (Emission gas Nox sensor) Emission gas /
    Min.: 0, Max.: 255    		 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    		 - -
    HUMIDITY SENS (Humidity sensor) Humidity sensor /
    Min.: 0%, Max.: 100%    		 Actual room humidity is displayed -
    AIR MIX PULSE-D (Air mix servomotor target pulse (D side)) Driver side air mix servomotor target pulse /
    Min.: 0, Max.: 255    		 Customized value will be displayed -
    AIR MIX PULSE-P (Air mix servomotor target pulse (P side)) Passenger side air mix servomotor target pulse /
    Min.: 0, Max.: 255    		 Customized value will be displayed -
    AIR OUT PULSE-D (Air Out Pulse-D) Driver side air outlet servomotor target pulse /
    Min.: 0, Max.: 255    		 Customized value will be displayed -
    A/I DAMP PLS (Air inlet damper target pulse) Air inlet damper target pulse /
    Min.: 0, Max.: 255    		 Customized value will be displayed -
    A/B DAMP PLS (Cool air bypass pulse) Driver side cool air bypass pulse /
    Min.: 0, Max.: 255    		 Customized value will be displayed -
    #CODES (Number of trouble codes) Number of trouble codes /
    Min.: 0, Max.: 255    		 Number of DTCs will be displayed -

    ECM 

    DATA LIST CHART

    Item Measurement Item / Display (Range) 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. PERFORM ACTIVE TEST 

    HINT:

    Performing the intelligent tester's Active Test allows relay, VSV, actuator 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. Perform the Active Test according to the display on the tester.

AIR CONDITIONER 

ACTIVE TEST CHART

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 -
DEICER RLY-R (Deicer relay (Front)) Deicer relay (Front) / 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 servomotor pulse /
Min.: 0, Max.: 255		 -
AIR MIX PULSE-P (Air mix servomotor pulse (P side)) Passenger side air mix servomotor pulse /
Min.: 0, Max.: 255		 -
AIR OUT PULSE-D (Air outlet servomotor pulse (D side) Driver side air outlet servomotor 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 

ACTIVE TEST CHART

Item Test Details / Display (Range) Diagnostic Note
A/C MAG CLUTCH Magnetic clutch relay / OFF, ON -
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