* Computer Memory: Car computers have non-volatile memory, meaning they retain data even without power. This data includes settings, learned driving habits, and fault codes.
* Battery Role: The battery's primary role is to provide power to start the engine and run electrical systems. It doesn't directly control the computer's memory.
* Power Management: Modern cars have power management systems that ensure the computer and other vital systems remain powered even when the battery is disconnected.
However, there are some exceptions:
* Loss of Power: If the power is completely cut off for an extended period (like a complete battery disconnect during a repair), the computer might lose some settings or require relearning.
* Specific Systems: Some systems, like radio presets or clock settings, might reset after a battery change due to their dependence on battery power.
Important Note: If you're experiencing issues after a battery change, it's best to consult a mechanic to diagnose the problem and ensure the computer is functioning correctly.
