System Diagram

WARNING: This page is about a different variant/trim than selected.

Air Conditioning System

Fig 1: Identifying Air Conditioning System Diagram (1 Of 2)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Identifying Air Conditioning System Diagram (2 Of 2)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

COMMUNICATION TABLE

Sender	Receiver	Signal	Communication Line
Air conditioning amplifier assembly	ECM	Heater idle up request signal	CAN
		ECO switch information signal
		Prior A/C control request signal
		Cooling fan motor driving request signal
		Refrigerant gas pressure sensor signal
		Ambient temperature signal
Air conditioning amplifier assembly	Power management control ECU	Heater idle up request signal	CAN
		ECO switch information signal
		Prior A/C control request signal
		Water pump ON/OFF request signal
		Inverter STB ON/OFF request signal
		Electrical compressor start signal
		Electrical compressor target revolutions signal
		A/C control state signal
Air conditioning amplifier assembly	Air conditioning control assembly	Ambient temperature indicator signal	LIN
		MODE indication signal
		Blower level indication signal
		Set temperature indication signal
Combination meter assembly (No. 3 meter circuit plate)	Air conditioning amplifier assembly	Vehicle speed signal	CAN
Air conditioning amplifier assembly	Combination meter assembly (No. 3 meter circuit plate)	REC indicator signal	CAN
		FRS indicator signal
		Driver temperature display signal
ECM	Air conditioning amplifier assembly	Engine speed signal	CAN
ECM	Air conditioning amplifier assembly	Engine coolant temperature signal	CAN
Power management control ECU	Air conditioning amplifier assembly	Shift position P signal	CAN
		Shift position R signal
		Shift position N signal
		A/C inverter main power supply voltage signal
		A/C inverter output signal
		A/C inverter internal power source malfunction signal
		STB wire short signal
		State of STB signal
		A/C inverter temperature information signal
		Compressor start flag signal
		Compressor humidity control start flag signal
		A/C motor revolution signal
		A/C motor current request signal
Air conditioning control assembly	Air conditioning amplifier assembly	AUTO switch signal	LIN
		A/C switch signal
		Fr DEF switch signal
		Rr DEF switch signal
		MODE switch signal
		REC/FRS switch signal
		Micro dust and pollen filter mode switch signal
		Blower switch signal (FAN+, FAN-, OFF)
		Set temperature switch signal (UP, DOWN)

Remote Climate Control System

Fig 3: Identifying Remote Climate Control System Diagram

COMMUNICATION TABLE

Sender	Receiver	Signal	Communication Line
Key (electrical transmitter)	Certification ECU (smart key ECU assembly)	Remote climate control system activation request signal	Radio waves
Key (electrical transmitter)	Certification ECU (smart key ECU assembly)	Remote climate control system stop request signal	Radio waves
Certification ECU (smart key ECU assembly)	Main body ECU (multiplex network body ECU)	Remote climate control system activation request signal	CAN
Certification ECU (smart key ECU assembly)	Main body ECU (multiplex network body ECU)	Remote climate control system stop request signal	CAN
Main body ECU (multiplex network body ECU)	Power management control ECU (power control section)	Remote climate control system power ON/OFF request signal	CAN
	Power management control ECU (power control section)	Remote climate control system mode notification signal
	Power management control ECU (HV system control section)	HV system ON/OFF request signal
	Air conditioning amplifier assembly	Remote climate control system mode notification signal
	Certification ECU (smart key ECU assembly)	Remote climate control system mode notification signal
	Telematics Transceiver (DCM)	Remote climate control system mode notification signal
Power management control ECU (power control section)	Main body ECU (multiplex network body ECU)	Power mode status signal	CAN
Power management control ECU (HV system control section)	Main body ECU (multiplex network body ECU)	Remote climate control system activation permission signal	CAN
	Main body ECU (multiplex network body ECU)	Remote climate control system activation prohibition signal
	Air conditioning amplifier assembly	Remote climate control system activation permission signal
	Air conditioning amplifier assembly	Remote climate control system activation prohibition signal
	Telematics Transceiver (DCM)	Remote climate control system activation permission signal
	Telematics Transceiver (DCM)	Remote climate control system activation prohibition signal
Air conditioning amplifier assembly	Main body ECU (multiplex network body ECU)	Remote climate control system OFF request signal	CAN
Air conditioning amplifier assembly	Telematics Transceiver (DCM)	Remote climate control system OFF request signal	CAN
Telematics Transceiver (DCM)	Main body ECU (multiplex network body ECU)	Remote climate control system ON request signal	CAN
Air conditioning amplifier assembly	Telematics Transceiver (DCM)	Cabin temperature level signal	CAN
Air conditioning amplifier assembly	Telematics Transceiver (DCM)	IT cooperative control outlet signal	CAN

HINT:

For details of the remote climate control system, refer to System Description. Refer to SYSTEM DESCRIPTION .