Network Message Charts
WARNING: This page is about a different car, the 2018 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.
Module Network Input Messages - PCM
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| A/C request (gateway) | BCM | This message requests the A/C compressor clutch to be engaged. |
| A/C request (gateway) | HVAC control module | This message requests the A/C compressor clutch to be engaged. |
| Evaporator temperature | BCM | This message contains the evaporator temperature. The PCM uses the evaporator temperature to engage the A/C compressor clutch. |
Module Network Input Messages - HVAC Control Module
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| A/C clutch status | PCM | This message contains the A/C compressor clutch status. |
| Ambient air temperature | PCM | This message contains raw value from the ambient air temperature sensor. |
| Evaporator temperature | BCM | This message contains the evaporator temperature. |
| Remote start status | BCM | This message contains the climate control system controls request for remote start. |