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System Diagram

Fig 1: Air Conditioning System Diagram
G05831349Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
SYSTEM DIAGRAM DESCRIPTION

Transmitter Receiver Line Signal
A/C Amplifier ECM BEAN/CAN Heater Relay Control Signal
Magnetic Clutch Control Signal
Rear DEF Relay Control Signal
Idle Up Request Signal
Heater Valve Open Signal
PTC Driving Number Request Signal
Outside Temperature Data
A/C Pressure Sensor Signal
External Variable Control Solenoid Current Signal
A/C Amplifier Combination Meter BEAN Outside Temperature Data
A/C Amplifier Multi-display, Heater Control Panel BEAN / AVC-LAN EMV-Indicator
EMV-Temp. Indication
A/C Amplifier Main Body ECU RH BEAN Diagnostic Tool Response
ECM A/C Amplifier BEAN / CAN Engine Speed Signal
Engine Coolant Temperature Signal
Outside Temperature Data
Inhalation of Air Temperature Data
A/C Compressor Lock Control Signal
Recycle Mode Switching Request
A/C Control Cut Signal
Variable Control Prohibition Signal
A/C-E/G Cooperation Control
PTC Heater Permission Number
Main Body ECU RH A/C Amplifier BEAN Diagnostic Tool Request
Diagnostic Erase Signal
Combination Meter A/C Amplifier BEAN Vehicle Speed Signal
Multi-display, Heater Control Panel A/C Amplifier BEAN / AVC-LAN A/C Operation Signal
Fig 2: Communication Diagram Of Air Conditioning System (1 Of 2)
G05831350Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Communication Diagram Of Air Conditioning System (2 Of 2)
G05831351Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002