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Home >> Mercury >> 2008 >> Milan Base, 3.0 1, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 412 (HVAC Control System - General Information And Diagnostics - (Hybrid)) >> Diagnosis And Testing >> Climate Control System >> Pinpoint Tests >> Pinpoint Test E: The Air Conditioning (A/C) is Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

Under normal operation, the cabin A/C system is activated when the function selector switch is in the NORMAL A/C, MAX A/C, A/C RECIRC, DEF/FLOOR or DEFROST modes. The PCM opens the passenger zone valve to allow refrigerant flow through the front evaporator, and controls the cycling of the A/C compressor clutch.

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