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Home >> Ford >> 2016 >> Focus S, Automatic DCT Trans, Gas >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System - General Information (Except Electric Vehicle) >> Description And Operation >> Climate Control System - Vehicles With: Dual Automatic Temperature Control (DATC) - System Operation and Component Description >> System Operation >> Control System Logic
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Control System Logic

The DATC system customer interface is in one or more locations depending on vehicle option content:

When the touchscreen or voice commands are used and A/C is selected, the APIM sends message over the MS-CAN to the BCM. The BCM then sends the request to the PCM over the HS-CAN. The PCM controls the A/C clutch relay.

When the customer directly inputs an A/C request into the DATC module, it sends the request to the BCM over the MS-CAN. The BCM then sends the request to the PCM over the HS-CAN. The PCM controls the A/C clutch relay.

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