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Home >> Ford >> 2021 >> Expedition MAX Limited, 4WD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System - General Information (1 Of 2) >> Description And Operation >> Climate Control System - Vehicles With: Electronic Manual Temperature Control (EMTC) - System Operation and Component Description >> Control System Logic
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Control System Logic

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

When the customer directly inputs an A/C request into the FCIM, the module sends the request to the GWM over the MS-CAN, and the GWM sends the request to the PCM over the HS-CAN1.

The FCIM requires PMI when it is replaced.