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. |
| HVAC evaporative temperature | HVAC control module | This message contains the evaporator temperature. The PCM uses the evaporator temperature to determine the A/C compressor output. |