Shorts to Power
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2006 Mercury Mountaineer, 2006 Mercury Monterey, 2006 Mercury Montego, 2006 Mercury Milan, and 2006 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
Key ON to power up the circuit. Measure the voltage between the suspect circuit at the harness connector and a reliable ground. The voltage must be less than 1.0 volt.