| Sender | Receiver | Signal | Communication Line |
|---|---|---|---|
| Air conditioning amplifier | ECM | A/C compressor control signal | CAN |
| Idle up request signal | |||
| External variable control solenoid current signal | |||
| Cooling fan motor driving request signal | |||
| PTC heater driving number request signal | |||
| Ambient temperature signal | |||
| Air conditioning amplifier | Air conditioning control (for Front) |
Front panel indication signal | LIN |
| A/C indication signal | |||
| REC indication signal | |||
| FRS indication signal | |||
| RDEF indication signal | |||
| Air conditioning amplifier | Air conditioning control (for Rear) |
Rear panel indication signal | LIN |
| MODE indication signal | |||
| Blower level indication signal | |||
| Set temperature indication signal | |||
| Combination meter | Air conditioning amplifier | Vehicle speed signal | CAN |
| Ambient temperature signal | |||
| ECM | Air conditioning amplifier | Engine revolution speed signal | CAN |
| Engine coolant temperature signal | |||
| A/C control cut signal | |||
| Variable control prohibition signal | |||
| PTC heater permission number | |||
| Air conditioning control (for Front) |
Air conditioning amplifier | OFF switch signal | LIN |
| A/C switch signal | |||
| DEF switch signal | |||
| MODE switch signal | |||
| RDEF switch signal | |||
| Blower switch signal (FAN+, FAN-) | |||
| Set temperature switch signal (UP, DOWN) | |||
| Air conditioning control (for Reat) |
Air conditioning amplifier | OFF switch signal | LIN |
| MODE switch signal | |||
| Blower switch signal (FAN+, FAN-) | |||
| Set temperture sw (UP, DOWN) | |||
| Air conditioning amplifier | Multi-information display | Ambient temperature signal | CAN |
| MODE indication signal | |||
| Blower level indication signal | |||
| Set temperature indication signal |