COMMUNICATION SYSTEM FUNCTION
Air conditioning amplifier assembly transmits and receives the signals in each ECU via the CAN communication system and LIN communication system. Also air conditioning amplifier assembly transmits and receives the damper position, damper operation, sensor status. etc., signals in each actuators.
| 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 |
| 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 headlight request | |||
| Low beam headlight request | |||
| Destination symbol | |||
| Country Code 1st, 2nd, 3rd | |||
| Steering wheel | |||
| BDB command information 11 to 12 | |||
| Solar data (R) | |||
| Solar data (L) | |||
| Presence/absence of PTC | |||
| 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 | |||
| PTC heater relay request |
| Receiver | Sender | Signal | Communication Line |
|---|---|---|---|
| Front multiplex network door ECU LH | Air conditioning amplifier assembly | Mirror heater drive request | CAN |
| Receiver | Sender | Signal | Communication Line |
|---|---|---|---|
| Front multiplex network door ECU RH | Air conditioning amplifier assembly | Mirror heater drive request | CAN |
| Receiver | Sender | Signal | Communication Line |
|---|---|---|---|
| Parking brake assembly | Air conditioning amplifier assembly | In-vehicle temperature | CAN |
| Ambient temperature display |
| Receiver | Sender | Signal | Communication Line |
|---|---|---|---|
| Front steering control ECU | Air conditioning amplifier assembly | Ambient temperature display | CAN |
| Receiver | Sender | Signal | Communication Line |
|---|---|---|---|
| Skid control ECU assembly | Air conditioning amplifier assembly | Ambient temperature before correction | CAN |
| 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 |
| 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 |
| Receiver | Sender | Signal | Communication Line |
|---|---|---|---|
| Forward recognition camera | Air conditioning amplifier assembly | Ambient temperature display | CAN |
| Receiver | Sender | Signal | Communication Line |
|---|---|---|---|
| Stereo component equalizer assembly | Air conditioning amplifier assembly | Front blower level indicator | CAN |
| Receiver | Sender | Signal | Communication Line |
|---|---|---|---|
| Air conditioning amplifier assembly | Radio 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 speech recognition operation mode information | |||
| Air conditioning amplifier assembly | Radio receiver assembly | Driver seat speech recognition data addition subtraction information | CAN |
| Driver seat speech recognition temperature directions data | |||
| Front passenger seat speech recognition operation mode information | |||
| Front passenger seat speech recognition data addition subtraction information | |||
| Front passenger seat speech 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 | |||
| Destination 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 climate concierge monitor | |||
| Driver outlet indicator signal for LEXUS climate 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 |
| Receiver | Sender | Signal | Communication Line |
|---|---|---|---|
| Air conditioning amplifier assembly | Hybrid vehicle control ECU assembly | ECO mode indicator | CAN |
| Driver mode select | |||
| Battery maximum temperature | |||
| State of STB (Standby) | |||
| Compulsion recycle request | |||
| Communication A/C inverter and HV ECU | |||
| No electrical heater request | |||
| A/C permission electric power | |||
| Ready | |||
| A/C inverter main voltage | |||
| A/C inverter output | |||
| Motor over load information | |||
| Motor start information | |||
| A/C inverter internal power source malfunction | |||
| STB wire short | |||
| A/C inverter temperature information | |||
| Self check | |||
| Thermistor cold temperature malfunction | |||
| BTC down | |||
| A/C motor revolution | |||
| A/C input power | |||
| A/C inverter temperature | |||
| A/C-Inverter CPU error flag | |||
| A/C-Inverter CPU initialization flag | |||
| A/C inverter identification | |||
| Engine type information 1 - 4 | |||
| HV flag | |||
| ECO-run flag | |||
| Hybrid vehicle control ECU assembly | Air conditioning amplifier assembly | Refrigerant gas pressure sensor | CAN |
| Water pump request | |||
| In-vehicle temperature | |||
| Heating performance assistance request to transmission system | |||
| Heater idle up request | |||
| Front blower level indicator | |||
| ECO switch information | |||
| Engine on request | |||
| Charging control inhibit | |||
| Electromotion compressor target revolutions | |||
| Ambient temperature before correction | |||
| Ambient temperature display | |||
| Electromotion compressor start | |||
| Prior A/C control request | |||
| Standby for inverter request | |||
| Inlet state(for cooling battery) | |||
| A/C control state |
| Receiver | Sender | Signal | Communication Line |
|---|---|---|---|
| Battery ECU assembly | Air conditioning amplifier assembly | In-vehicle temperature signal | CAN |
| Front blower level indicator | |||
| A/C ventilation request | |||
| Ambient temperature display | |||
| Inlet state (for cooling battery) |
| 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 |
| Receiver | Sender | Signal | Communication Line |
|---|---|---|---|
| Inverter with converter assembly | Air conditioning amplifier assembly | Ambient temperature before correction | CAN |
| Ambient temperature display | |||
| Prior A/C control request |
| Receiver | Sender | Signal | Communication Line |
|---|---|---|---|
| Shift control ECU | Air conditioning amplifier assembly | No charge control | CAN |
| 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 | ||||
| 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 |
| 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 |