* Lighting: Headlights, taillights, interior lights, parking lights, turn signals. It monitors bulb failures and may activate warning indicators.
* Power locks and windows: Controls the locking and unlocking of doors and operation of power windows.
* Security system: Interacts with the alarm system, immobilizer (if equipped), and remote keyless entry.
* Gauges and warning lights: Monitors various systems and illuminates corresponding warning lights on the instrument panel (check engine, low fuel, etc.). Some gauges might get signals from it, but the main gauge cluster has it's own computer.
* Power accessories: May control things like the power mirrors and sun roof (if equipped).
* Communication: Acts as a communication hub, relaying information between other modules in the vehicle (like the Engine Control Module - ECM).
* Theft Deterrent: Plays a role in preventing theft by disabling certain functions if the system detects unauthorized access.
It's important to note that the exact functions controlled by the BCM can vary slightly depending on the specific options and trim level of the 2000 Town & Country. If a particular electrical system is malfunctioning, the BCM could be a potential suspect, but diagnosing such issues requires specialized tools and expertise.
