Basic electrical components of a car
Starting system
* Starter
* Battery
* Starter solenoid
*Starter insulator
*Starter relay
Charging system
* Generator
* Voltage regulator
* Alternator belts
* Generator fuse
Ignition system
* Spark plugs
* Ignition coils
* Engine Control Module (ECM)
* Crankshaft and camshaft position sensors
Fuel injection system
* Fuel pump
* Fuel pressure regulator
* Fuel injector
*ECM
Lighting system
* Headlights
* Tail lights
* Side lights
*Dashboard lights
Comfort system
* Window lifters
* Electric rear view mirrors
*Power seats
* Air conditioner
* Audio system
Electronic control system
*ECM
* Sensors (temperature, pressure, mixture composition)
* Actuators (valves, injectors)
* CAN bus (controller network)
Security systems
* Airbags
* Forward Proximity Warning (FCW)
* Stability Control (ESC)
* Anti-lock braking system (ABS)
Typical car wiring diagram
[Car Wiring Diagram](https://www.electronicshub.org/wp-content/uploads/2018/10/Automotive-Wiring.png)
Scheme legend
*Positive wires: Red and yellow
* Negative wires: Black and brown
*Acc: Accessories
* Alt: Generator
* Batt: Battery
* BCM: Body Control Module
*ECM: Engine Control Module
* ECU: Electronic control unit
* F/P: Fuel pump
* G/G: Ground
* Ign: Ignition
* L/P: Lamp
*SW: Switch
* GND: Ground