System Diagram
WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
Communication table
COMMUNICATION CHART
| 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 | |||
| Ambient temperature signal | |||
| Air conditioning amplifier | Air conditioning control assembly | Front panel indication signal | LIN |
| AUTO indication signal | |||
| A/C indication signal | |||
| MODE indication signal | |||
| REC indication signal | |||
| FRS indication signal | |||
| RDEF indication signal | |||
| Blower level indication signal | |||
| Set temperature indication signal | |||
| Combination meter assembly | 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 | |||
| Air conditioning control assembly | Air conditioning amplifier | AUTO switch signal | LIN |
| OFF switch signal | |||
| A/C switch signal | |||
| DEF switch signal | |||
| MODE switch signal | |||
| RDEF switch signal | |||
| Blower switch signal (FAN+, FAN-) | |||
| Set temperature switch signal (UP, DOWN) |