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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 970 (Climate Control System - General Information And Diagnostics - (Except Hybrid)) >> Diagnostic Tests >> Climate Control System >> Pinpoint Tests >> Pinpoint Test G: No Operation in High Blower Setting >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

When the blower motor switch is placed in high and the function selector switch is in any position except OFF, the blower motor switch creates a direct link to ground for the blower motor, resulting in high speed operation.

Possible Causes