Normal Operation
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 instrument cluster monitors a signal to the headlamp switch through circuit 10-LE47 (GY/OG). When the headlamp switch is turned to the autolamps ON position, the signal is returned through circuit 9-LE29 (BN/GN). After the signal for the autolamps is received, the instrument cluster monitors the photocell ambient light conditions by sending a signal to the photocell through circuit 8-LE42 (WH/BU).