* Lighting: Headlights, taillights, interior lights, turn signals, etc. The BCM manages their operation and often incorporates features like automatic headlights or courtesy delays.
* Power Locks and Windows: Controls the locking and unlocking of doors, and the operation of power windows and sometimes the sunroof.
* Security System: Integrates with the vehicle's anti-theft system, managing features like the alarm and remote unlocking.
* Gauges and Warning Lights: Monitors various systems and illuminates warning lights on the instrument panel as needed (e.g., check engine, low fuel, etc.). It doesn't control the gauges themselves but may receive input from sensors and interpret them.
* Other Electrical Components: May control other accessories such as power mirrors, wipers, and even some aspects of the climate control system depending on the specific vehicle configuration.
In essence, the BCM simplifies wiring and improves functionality by centralizing the control of many electrical components. If your Impala is experiencing issues with multiple electrical functions simultaneously, the BCM is a prime suspect for the problem.
