Lexus IS250 · Service Manual HEATER & AIR CONDITIONING SYSTEM

SYSTEM DIAGRAM

System information

E116915E01
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
E116916E01
E116917E01
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