Normal Operation
WARNING: This page is about a different car, the 2006 Mercury Grand Marquis and 2006 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
The instrument cluster receives voltage from the central junction box (CJB) through circuit 1003 (GY/YE). The instrument cluster receives the vehicle speed sensor (VSS) signal from the anti-lock brake system (ABS) module over the controller area network (CAN). The instrument cluster monitors the VSS input from the ABS module and commands the speedometer with a corresponding movement of the pointer.