Circuit 10-BA25 (GY/RD)
WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.
The generator I-circuit terminal is used to turn the generator on initially. Once the generator is turned on, the generator only turns off when the engine is shut down. If the I-circuit 10-BA25 (GY/RD) is open or shorted to ground, the generator does not function. If the engine speed exceeds 3,000 RPM, the generator self-excites, and begins to function normally (the battery light turns off and the generator operates normally) until the engine is turned off. This is a limp-home mode for customer safety