What are the effects of a damaged car circuit board on the vehicle?

[MacClara]

It can cause the car to fail to start. Basic knowledge of automotive circuits is as follows: 1. Power circuit: Composed of the battery, generator, voltage regulator, and operation display device, its main task is to supply power to all electrical equipment in the vehicle and maintain stable power supply voltage. 2. Starting circuit: Composed of the starter relay, starting switch, and starting protection device, its main task is to transition the engine from a stationary state to a self-operating state. 3. Ignition circuit: Composed of the distributor, electronic ignition controller, ignition coil, spark plugs, and ignition switch, its main task is to control and generate sufficient voltage to break down the spark plug electrode gap, while delivering high voltage to each cylinder's spark plug in the engine's working order. 4. Air conditioning control circuit: Composed of the air conditioning compressor electromagnetic clutch, air conditioning controller, control switch, and fan control circuit. 5. Instrument circuit: Composed of instruments, indicator gauges, sensors, various alarms, and controllers, its main task is to control the display of various instrument information parameters and alarms.