System Diagram
WARNING: This page is about a different car, the 2008 Toyota Yaris. 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 | |||
| Cooling fan motor driving request | |||
| ECM PTC driving number request signal | |||
| Ambient temperature signal | |||
| External variable control solenoid current signal | |||
| Combination meter | Air conditioning amplifier | Vehicle speed signal | CAN |
| ECM | Air conditioning amplifier | Engine revolution speed signal | CAN |
| ECM Engine coolant temperature signal | |||
| A/C control cut signal | |||
| Variable control prohibition signal | |||
| PTC heater permission number |