Normal Operation
WARNING: This page is about a different car, the 2005 Mercury Mountaineer and 2005 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
The high beam indicator bulb is powered through circuit 12 (LG/BK) when the multifunction switch is placed in the high beam position. The high beam indicator bulb is grounded through the instrument cluster bulb ground circuit 1205 (BK).