System Description [12/2019 - 10/2022]
- COMMUNICATION SYSTEM FUNCTION
- The air conditioning amplifier assembly communicates with each ECU via CAN communication and LIN communication. Also, the air conditioning amplifier assembly transmits and receives the damper position, damper operation, sensor status, etc., signals to and from each actuator.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) BDB1S01 sub ID CAN Auto dimmer Passenger's seat courtesy SW Rear right side courtesy SW Rear left side courtesy SW BDB1S03 sub ID High beam head lamp request Low beam head lamp request BDB1S08 sub ID Destination symbol Country code 1st Country code 2nd Country code 3rd Steering wheel Solar data (R) Solar data (L) Humidity Windshield temperature Ambient temperature of humidity sensor Main body ECU (multiplex network body ECU) Air conditioning amplifier assembly Ambient temperature display CAN AIR CONDITIONING AMPLIFIER ASSEMBLY ←→ INTEGRATION CONTROL SUB-ASSEMBLY (W/ TOYOTA MULTI OPERATION TOUCH SYSTEM)Receiver Sender Signal Communication Line Air conditioning amplifier assembly Integration control sub-assembly DMS1S02 sub ID CAN D SEAT HEATER SW operation D SEAT VENTILATOR SW operation P SEAT HEATER SW operation P SEAT VENTILATOR SW operation DMS1S03_Sub_ID INLET switch state A/C switch state WIPER DEICER switch state DUAL/SYNC switch state Dr MODE switch state Dr temperature UP switch state Dr temperature Down switch state Pa temperature UP switch state Pa temperature Down switch state Blower FRONT UP switch state Blower FRONT DOWN switch state DMS1S04_Sub_ID Switch state that shows concentration on one seat Blower Rear UP switch state Blower Rear Down switch state Rear R temperature UP switch state Rear R temperature DOWN switch state Rear R MODE switch state Rear OFF switch state Rear AUTO switch state ECO AC switch state Integration control sub-assembly Air conditioning amplifier assembly Dr AUTO INDICATOR CAN DEF INDICATOR REC INDICATOR A/C INDICATOR WIPER DEICER INDICATOR Dual/SYNC INDICATOR Front blower level INDICATOR Dr OLET-AUTO INDICATOR Dr OLET INDICATOR Fr BLW MANUAL status Indicator signal that shows concentration on one seat Blower custom INDICATOR A/C ON-SCREEN request PARTIL SYNC STATUS INDICATOR INLET AUTO INDICATOR (TAO AUTO) A/C AUTO INDICATOR Dr TEMPERATURE display Pa TEMPERATURE display A/C ECO status INDICATOR A/C SCREEN select information SW DESIGN DUAL/SYNC. select information TEMPERATURE UNIT select information Front BLOWER STEP select information Integration control sub-assembly Air conditioning amplifier assembly Rr AUTO SW select information CAN Rear BLOWER STEP select information DESTINATION select information WIPER DEICER SW select information CONTROL INFORMATION status SFLOW SW select information Rear BLOWER SW select information Rear OFF SW select information Blower custom SW select information A/C ECO SW select information Front seat blower and heater SW information Rr AUTO INDICATOR Rr BLW MANUAL status Rr blower custom INDICATOR Rr R OLET-AUTO INDICATOR Rear blower level INDICATOR Rear right OLET INDICATOR Rear right or rear TEMPERATURE display Pa Fr seat blower level display Pa Fr seat heater level display Dr Fr seat blower level display Dr Fr seat heater level display AIR CONDITIONING AMPLIFIER ASSEMBLY ←→ COMBINATION METER ASSEMBLYReceiver Sender Signal Communication Line Air conditioning amplifier assembly Combination meter assembly MET1S01 sub ID CAN Vehicle speed (meter to other) MET1S08 sub ID Passenger presence 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 ←→ AIRBAG SENSOR ASSEMBLYReceiver Sender Signal Communication Line Air conditioning amplifier assembly Airbag sensor assembly Passenger's seat occupant status CAN Passenger's seat belt buckle switch status AIR CONDITIONING AMPLIFIER ASSEMBLY ←→ POWER STEERING ECU (RACK AND PINION POWER STEERING GEAR ASSEMBLY)Receiver Sender Signal Communication Line Air conditioning amplifier assembly Power steering ECU (rack and pinion power steering gear assembly) Loading control level CAN Power steering ECU (rack and pinion power steering gear assembly) Air conditioning amplifier assembly Ambient temperature display CAN AIR CONDITIONING AMPLIFIER ASSEMBLY ←→ DCM (TELEMATICS TRANSCEIVER)Receiver Sender Signal Communication Line Air conditioning amplifier assembly DCM (telematics transceiver) YGW1S01 sub ID CAN Remote E/G start system control YGW1S02 sub ID Defogger control Air conditioner control DCM (telematics transceiver) Air conditioning amplifier assembly Drive recorder ACN01 CAN Drive recorder ACN02 Drive recorder ACN03 Drive recorder ACN04 Drive recorder ACN05 Drive recorder ACN06 Drive recorder ACN07 Drive recorder ACN08 A/C warning on-screen request DEF INDICATOR A/C INDICATOR Indicator signal that shows concentration on one seat Dr TEMPERATURE display In-vehicle temperature Ambient temperature display A/C control state AIR CONDITIONING AMPLIFIER ASSEMBLY ←→ ENGINE STOP AND START ECU (W/ STOP AND START SYSTEM)Receiver Sender Signal Communication Line Air conditioning amplifier assembly Engine Stop and Start ECU ECO-run control mode CAN ECO-run cancel lamp lighting request S&S A/C mode Engine Stop and Start ECU Air conditioning amplifier assembly Engine ON request CAN Water pump request Ambient temperature display AIR CONDITIONING AMPLIFIER ASSEMBLY ←→ ECMReceiver Sender Signal Communication Line Air conditioning amplifier assembly ECM Drive mode select CAN Engine type information 1 Engine type information 2 Engine type information 3 Engine type information 4 HV flag ECO-run flag Engine RPM data Water temperature Alternative field duty value Deicer inhibit A/C control cut-off 5 A/C control cut-off 4 A/C control cut-off 3 A/C control cut-off 2 A/C control cut-off 1 Variable control inhibition Number of PTC heater which is permitted Voltage of accessory battery Compulsory internal air circulation command signal at high water temperature ECM Air conditioning amplifier assembly Magnet clutch request CAN A/C idleup request Heater idleup request Charging control inhibit Prior A/C control request Acceleration cut inhibit PTC heater control request Generator control inhibit Cooling performance assistance request signal to transmission system Request control by refrigerant Heating performance assistance request signal to transmission system Ambient temperature before correction Refrigerant information The first advancement evaporator temperature Variable compressor solenoid current Refrigerant gas pressure sensor Rr DEF drive request EHW (left) drive request Ambient temperature display AIR CONDITIONING AMPLIFIER ASSEMBLY ←→ AIR CONDITIONING CONTROL ASSEMBLY (W/O TOYOTA MULTI OPERATION TOUCH SYSTEM)Receiver Sender Signal Communication Line Air conditioning amplifier assembly Air conditioning control assembly Auto operation switch LIN OFF operation switch A/C operation switch Fr blower operation switch [push type] SFLW operation switch AUTO/MANUAL identifier information D outlet operation switch [push type] DEF operation switch Rr DEF operation switch DUAL SYNC operation switch Deicer operation switch Deicer switch variation Dr set temperature operation switch [pulse type] Pa set temperature operation switch [pulse type] Inlet operation switch 2 REAR operation switch R set temperature operation switch [push type] WITH OR WITHOUT S-FLOW FUNCTION DUAL/SYNC IDENTIFICATION INFORMATION Rr panel mode SW Part number information 1 Part number information 2 Part number information 3 Part number information 4 Part number information 5 Air conditioning control assembly Air conditioning amplifier assembly SFLW indicator LIN Wiper deicer indication Front panel all indicator AUTO indicator Blower level indicator REC indicator D seat mode indicator RDEF indicator DUAL/SYNC indicator D setting temperature indicator P setting temperature indicator Dimming A/C indicator Rr blower level indicator Rr AUTO indicator Rr SYNC indicator Rr ON indicator Rear indicator Rr R seat mode indicator Rr R setting temperature indicator AIR CONDITIONING AMPLIFIER ASSEMBLY ←→ AIR CONDITIONING CONTROL ASSEMBLY (W/ TOYOTA MULTI OPERATION TOUCH SYSTEM)Receiver Sender Signal Communication Line Air conditioning amplifier assembly Air conditioning control assembly Auto operation switch LIN OFF operation switch Fr blower operation switch [push type] AUTO/MANUAL identifier information DEF operation switch Rr DEF operation switch Deicer switch variation Dr set temperature [push type] Pa set temperature [push type] Pa set temperature operation switch [pulse type] WITH OR WITHOUT S-FLOW FUNCTION WITH OR WITHOUT BLW CS FUNCTION Part number information 1 Part number information 2 Part number information 3 Part number information 4 Part number information 5 Air conditioning control assembly Air conditioning amplifier assembly Front panel all indicator LIN AUTO indicator D seat mode indicator RDEF indicator Dimming AIR CONDITIONING AMPLIFIER ASSEMBLY ←→ NO. 2 AIR CONDITIONING CONTROL ASSEMBLYReceiver Sender Signal Communication Line Air conditioning amplifier assembly No. 2 air conditioning control assembly Auto operation switch LIN AUTO/MANUAL identification information OFF operation switch Rear blower operation switch RR outlet operation switch RR setting temperature switch Part number information 1 Part number information 2 Part number information 3 Part number information 4 Part number information 5 No. 2 air conditioning control assembly Air conditioning amplifier assembly Rear panel all indicator LIN AUTO indicator Blower level indicator RR seat mode indicator RR setting temperature indicator Dimming AIR CONDITIONING AMPLIFIER ASSEMBLY ←→ DAMPER SERVOReceiver Sender Signal Communication Line Air conditioning amplifier assembly No. 1 air conditioning radiator damper servo sub-assembly Damper position signal LIN No. 2 air conditioning radiator damper servo sub-assembly No. 1 blower damper servo sub-assembly Rear air mix damper servo sub-assembly Rear mode damper servo sub-assembly No. 1 air conditioning radiator damper servo sub-assembly Air conditioning amplifier assembly LIN No. 2 air conditioning radiator damper servo sub-assembly No. 1 blower damper servo sub-assembly Rear air mix damper servo sub-assembly Rear mode damper servo sub-assembly AIR CONDITIONING AMPLIFIER ASSEMBLY ←→ BLOWER MOTOR, SENSOR, SWITCH, ETC.Receiver Sender Signal Communication Line Air conditioning amplifier assembly Room temp. sensor (cooler thermistor) Sensor value signal Direct line No. 2 room temp. sensor (cooler thermistor) Ambient temp. sensor (thermistor assembly) Air conditioner pressure sensor Evaporator temp. sensor (No. 1 cooler thermistor) Rear evaporator temp. sensor (No. 2 air conditioning harness assembly) Blower motor with fan sub-assembly Drive signal Rear blower motor control Drive signal Air conditioning amplifier assembly PTC HTR relays Quick heater assembly operation signal A/C COMP relay (magnet-clutch relay) Magnet clutch assembly operation signal Cooler compressor assembly SSR terminal signal SOL terminal signal Blower motor with fan sub-assembly Air conditioning amplifier assembly Drive signal Direct line Rear blower motor control Drive signal
- The air conditioning amplifier assembly communicates with each ECU via CAN communication and LIN communication. Also, the air conditioning amplifier assembly transmits and receives the damper position, damper operation, sensor status, etc., signals to and from each actuator.