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
- Blower motor switch
- Circuit 261 (OG/BK) open