Front Control Module (FCM) for 2002 – 2005 Dodge Ram

In a 2002 – 2005 Dodge Ram, the Front Control Module (FCM) is responsible for managing and controlling various electrical components and systems in the vehicle. Its functions typically include:

1. Exterior Lighting Control: The FCM manages the operation of the headlights, turn signals and other exterior lights.
2. Windshield Wipers and Washer Control: It controls the windshield wipers and washer system, including intermittent wiper settings.
3. Interior Lighting Control: The FCM handles the operation of interior lights, such as dome lights and courtesy lights.
4. Horn Operation: It manages the horn functionality.
5. Power Accessory Control: The FCM controls power accessories, including power windows, locks, and mirrors.
6. Diagnostic Functions: It plays a role in vehicle diagnostics and communicates with the central body control module and other control units to report and manage faults.

The FCM essentially serves as a central hub for various electrical and electronic components, ensuring they function correctly and interact seamlessly with other systems in the vehicle.