AIR CONDITIONING SYSTEM(for Manual Air Conditioning System) SYSTEM DIAGRAM

E265589E03
E277671E02
E318550E01
E277676E02
Table 1. Communication Table

Sender

Receiver

Signal

Communication Line

Air conditioning amplifier assembly

ECM

Magnetic clutch request signal

CAN

Idle up request signal

Heater idle up request signal

Super cooling control state signal

Charging control inhibit signal

Motor cooling fan drive request signal

Prior A/C control request signal

Acceleration cut inhibit signal

Lock-up inhibit signal

PTC heater control request signal

Request control by refrigerant signal

Generator control inhibit signal

Ambient temperature before correction signal

Refrigerant information signal

Evaporator temperature sensor signal

Electric load at low voltage state signal

Variable compressor solenoid current signal

Air conditioner pressure sensor signal

Ambient temperature display signal

Air conditioning amplifier assembly

Main body ECU (multiplex network body ECU)

Ambient temperature display signal

CAN

A/C control state signal

Air conditioning amplifier assembly

Engine stop and start ECU*

Engine on request signal

CAN

Blower on state signal

Blower manual status signal

A/C screen auto/manual select information signal

Ambient temperature display signal

A/C control state signal

ECM

Air conditioning amplifier assembly

Engine type information signal

CAN

Eco run flag signal

Engine rpm data signal

Alternative field duty value signal

Compulsory internal air circulation command signal at high engine coolant temperature

Engine coolant temperature signal

A/C control cut-off signal

Variable control inhibition signal

Air conditioner cut-off instruction flag at deceleration signal

A/C super cooling command flag at deceleration signal

Number of PTC heaters which are permitted signal

A/C lubrication control inhibit signal

Main body ECU (multiplex network body ECU)

Air conditioning amplifier assembly

Trip count signal

CAN

Time count signal

Auto dimmer signal

High beam headlight request signal

Low beam headlight request signal

Tail light request signal

Destination symbol signal

Destination package signal

Steering wheel signal

Combination meter assembly

Air conditioning amplifier assembly

Ambient temp display signal

CAN

Outside temperature sensor data signal

Vehicle speed signal (meter to other)

Engine stop and start ECU*

Air conditioning amplifier assembly

Eco run control mode signal

CAN

Eco run cancel light lighting request signal

Stop and start A/C mode signal

  • *: w/ Stop and Start System