AIR CONDITIONING SYSTEM SYSTEM DESCRIPTION


  1. CUMMUNICATION SYSTEM FUNCTION


    1. Air conditioning amplifier assembly transmits and receives the signals in each ECU via the CAN communication system and LIN communication system. Also air conditioning amplfier assembly transmits and receives the damper position, damper operation, sensor status. etc signals in each actuators.

      Air Conditioning Amplifier Assembly ←→ Airbag ECU Assembly
      Receiver Sender Signal Communication Line
      Air conditioning amplifier assembly Airbag ECU assembly Front passenger's seat occupant status CAN
      Front passenger's seat belt buckle switch status
      Air Conditioning Amplifier Assembly ←→ Main Body ECU (Multiplex Network Body ECU)
      Receiver Sender Signal Communication Line
      Air conditioning amplifier assembly Main body ECU (multiplex network body ECU) Trip count CAN
      Time count
      Auto dimmer
      High beam head light request
      Low beam head light request
      Destination symbol
      Country Code 1st, 2nd, 3rd
      Steering wheel
      BDB command information 11 to 12
      Solar data (R)
      Solar data (L)
      ACN function information No. 2
      Humidity
      Windshield temperature
      Ambient temperature of humidity sensor
      Main body ECU (multiplex network body ECU) Air conditioning amplifier assembly Ambient temperature display CAN
      Rear DEF drive request
      Water pump request
      Air Conditioning Amplifier Assembly ←→ Front Multiplex Network Door ECU LH
      Receiver Sender Signal Communication Line
      Front multiplex network door ECU LH Air conditioning amplifier assembly Mirror heater drive request CAN
      Air Conditioning Amplifier Assembly ←→ Front Multiplex Network Door ECU RH
      Receiver Sender Signal Communication Line
      Front multiplex network door ECU RH Air conditioning amplifier assembly Mirror heater drive request CAN
      Air Conditioning Amplifier Assembly ←→ Parking Brake ECU Assembly
      Receiver Sender Signal Communication Line
      Parking brake assembly Air conditioning amplifier assembly In-vehicle temperature CAN
      Ambient temperature display
      Air Conditioning Amplifier Assembly ←→ Front Steering Control ECU (w/ VGRS System)
      Receiver Sender Signal Communication Line
      Front steering control ECU Air conditioning amplifier assembly Ambient temperature display CAN
      Air Conditioning Amplifier Assembly ←→ Skid Control ECU Assembly
      Receiver Sender Signal Communication Line
      Skid control ECU assembly Air conditioning amplifier assembly Ambient temperature before correction CAN
      Air Conditioning Amplifier Assembly ←→ Rack and Pinion Power Steering Gear Assembly
      Receiver Sender Signal Communication Line
      Rack and position power steering gear assembly Air conditioning amplifier assembly Ambient temperature display CAN
      Air conditioning amplifier assembly Rack and position power steering gear assembly Loading control level
      Air Conditioning Amplifier Assembly ←→ Combination Meter Assembly
      Receiver Sender Signal Communication Line
      Air conditioning amplifier assembly Combination meter assembly Vehicle speed (meter to other) CAN
      Front passenger's seat occupant status
      Ion generator ON/OFF
      Combination meter assembly Air conditioning amplifier assembly Ambient temperature display CAN
      Switch signal of 0 or 0.5 below decimal point of ambient temperature display
      A/C load limitation warning
      Air Conditioning Amplifier Assembly ←→ Forward Recgnition Camera
      Receiver Sender Signal Communication Line
      Forward recognition camera Air conditioning amplifier assembly Ambient temperature display CAN
      Air Conditioning Amplifier Assembly ←→ Stereo Component Equalizer Assembly
      Receiver Sender Signal Communication Line
      Stereo component equalizer assembly Air conditioning amplifier assembly Front blower level indicator CAN
      Air Conditioning Amplifier Assembly ←→ Radio Receiver Assembly
      Receiver Sender Signal Communication Line
      Air conditioning amplifier assembly Redio receiver assembly Tunnel CAN
      ECO switch information
      Blower custom switch status
      Climate concierge switch state
      Driver auto switch state
      DEF switch state
      Rear DEF switch state
      INLET switch state
      Front off switch state
      A/C switch state
      Wiper deicer switch state
      DUAL/SYNC. switch state
      Driver MODE switch state
      Blower front up switch state
      Blower front down switch state
      Ion generator switch status
      Driver outlet switch state
      Driver temperature up switch state
      Driver temperature down switch state
      Front passenger temperature up switch state
      Front passenger temperature down switch state
      Pollen remove switch state
      Blower front level1 to 7 switch state
      A/C-navi cooperation state
      Driver seat speach recognition operation mode information
      Air conditioning amplifier assembly Redio receiver assembly Driver seat speach recognition data addition subtraction information CAN
      Driver seat speach recognition temperature directions data
      Front passenger seat speach recognition operation mode information
      Front passenger seat speach recognition data addition subtraction information
      Front passenger seat speach recognition temperature directions data
      Driver seat heater operation switch information
      Front passenger seat heater operation switch information
      Driver seat blast operation switch information
      Front passenger seat blast operation switch information
      Driver seat auto operation switch information
      Front passenger seat auto operation switch information
      Steering heater operation switch information
      Steering heater auto operation switch information
      Steering heater temperature up operation switch information
      Steering heater temperature down operation switch information
      Driver seat heater operation up switch information
      Front passenger seat heater operation up switch information
      Driver seat heater operation down switch information
      Front passenger seat heater operation down switch information
      Driver seat blower operation up switch information
      Front passenger seat blower operation up switch information
      Driver seat blower operation down switch information
      Front passenger seat blower operation down switch information
      Sensor fail
      Confidence MMC
      Confidence direction
      Switch state of A/C
      AVN1S39 valid information
      Radio receiver assembly Air conditioning amplifier assembly Driver auto indicator CAN
      DEF indicator
      Rear DEF indicator
      Inlet auto indicator
      REC indicator
      FRS indicator
      A/C indicator
      Wiper deicer indicator
      DUAL/SYNC. indicator
      Front blower level indicator
      Driver outlet-auto indicator
      Driver outlet indicator
      Front BLW manual status
      Ion generator indicator
      LEXUS climate concierge indicator
      Blower custom indicator
      Pollen remove indicator
      A/C on-screen request
      Driver temperature display
      Front passenger temperature display
      Outside temperature sensor A/D data
      Refrigerant gas pressure sensor A/D data
      A/C ECO status indicator
      A/C screen select information
      Switch design DUAL/SYNC. select information
      Temperature unit select information
      Front blower step select information
      Speech recognition level information
      Rear control inhibit switch select information
      Rear auto switch select information
      Rear blower step select information
      Distination select information
      Wiper deicer switch select information
      Radio receiver assembly Air conditioning amplifier assembly Mirror heater switch select information CAN
      Airpurifier switch select information
      Plasma cluster switch select information
      Pollen remove select information
      Swing switch select information
      Control information status
      Ion generator switch select information
      S-FLOW switch select information
      Rear blower switch select information
      Rear off switch select information
      Blower custom switch select information
      A/C ECO switch select information
      LEXUS climate concierge switch select information
      Steering heater switch select information
      A/C R/F collaborated with navi information
      Front seat blower and heater switch infomation
      Rear DEF drive request
      Mirror heater drive request
      In-vehicle temperature
      Ambient temperature display
      Switch signal of 0 or 0.5 below decimal point of ambient temperature display
      Front passenger outlet indicator signal for LEXUS climaite concierge monitor
      Driver outlet indicator signal for LEXUS climaite concierge monitor
      Steering heater Level display
      Front passenger climate control seat auto indicator
      Driver climate control seat auto indicator
      Steering heater auto indicator
      Front passenger front seat blower level display
      Front passenger front seat heater level display
      Driver front seat Blower level display
      Driver front seat heater level display
      Air Conditioning Amplifier Assembly ←→ ECM
      Receiver Sender Signal Communication Line
      Air conditioning amplifier assembly ECM Engine RPM data CAN
      Voltage of accessory battery
      Compulsory internal air circulation command signal at high water temperature
      Water temperature
      ECM Air conditioning amplifier assembly Heating performance assistance request to transmission system CAN
      Moter cooling fan drive request
      Heater idle up request
      Ambient temperature before correction
      Ambient temperature display
      Prior A/C control request
      Air Conditioning Amplifier Assembly ←→ Shift control ECU
      Receiver Sender Signal Communication Line
      Shift control ECU Air conditioning amplifier assembly No charge control CAN
      Air Conditioning Amplifier Assembly ←→ Integration Control and Panel Assembly
      Receiver Sender Signal Communication Line
      Air conditioning amplifier assembly Integration control and panel assembly LCD Front passenger set temperature display instruction LIN
      Blower level display instruction
      Driver air outlet display instruction
      Driver set temperature display instruction
      General display instruction (FRLCD display instruction)
      General display instruction (RRLCD display instruction)
      Indicator DUAL/SYNC display instruction
      Rec display instruction
      FRS display instruction
      Automatic recirculation/fresh control display instruction
      A/C display instruction
      DEF display instruction
      AUTO display instruction
      Air Conditioning Amplifier Assembly ←→ Damper Servo
      Receiver Sender Signal Communication Line
      Air conditioning amplifier assembly No. 1 air conditioning radiator damper servo sub-assembly Damper arm position LIN
      No. 2 air conditioning radiator damper servo sub-assembly
      No. 3 air conditioning radiator damper servo sub-assembly
      No. 4 air conditioning radiator damper servo sub-assembly
      No. 1 blowe damper servo sub-assembly
      No. 1 air conditioning radiator damper servo sub-assembly Air conditioning amplifier assembly
      No. 2 air conditioning radiator damper servo sub-assembly
      No. 3 air conditioning radiator damper servo sub-assembly
      No. 4 air conditioning radiator damper servo sub-assembly
      No. 1 blowe damper servo sub-assembly
      Air Conditioning Amplifier Assembly ←→ Blower Motor, Sensor, Switch etc.
      Receiver Sender Signal Communication Line
      Air conditioning amplifier assembly Cooler thermistor (room temperature sensor) Sensor value Direct line
      Thermistor assembly
      Air conditioner pressure sensor
      No. 1 cooler thermistor
      Air conditioning thermistor assembly
      Smog ventilation sensor
      Ion generator operation status
      Combination switch assembly ECO mode switch
      Blower with fan motor sub-assembly Air conditioning amplifier assembly Drive
      Ion generator