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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 28 (Heating / Air Conditioning System) >> Air Conditioning System >> System Diagram

System Diagram

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Air Conditioning System Diagram
G05755197Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
TRANSMITTER RECEIVER REFERENCE CHART

Transmitter Receiver Line Signal
A/C Amplifier ECM BEAN/CAN Heater Relay Control Signal
Rear DEF Relay Control Signal
Idle Up Request Signal
Heater Valve Open 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, Integration Control and Panel Assembly 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
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
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, Integration Control and Panel Assembly A/C Amplifier BEAN/AVC-LAN A/C Operation Signal