Network Message Chart
WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Module Network Input Messages HVAC Control Module
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| A/C clutch status | PCM | This message contains the status of the A/C compressor clutch. |
| Ambient air temperature | PCM | This message contains raw value from the ambient air temperature sensor. |
Module Network Input Messages PCM
| Broadcast Message | Originating Module | Message Purpose |
|---|---|---|
| HVAC A/C request | HVAC Control Module | This message requests the A/C compressor to be engaged. |
| Evaporator temperature | HVAC Control Module | This message contains the evaporator temperature. The PCM uses the evaporator temperature to determine the A/C compressor output. |