Power supply
* Battery
* Generator
* Starter
Wiring
* Wires and cables
* Connectors and terminals
* Mounting boxes and harnesses
Lighting devices
* Headlights
* Tail lights
* Signal lights
* Side lights
* Fog lights
* Daytime running lights
Pointers and instruments
* Speedometer
* Tachometer
* Fuel level indicator
* Temperature indicator
* Odometer
Comfort systems
* Window lifters
*Power seats
* Air conditioning and heating
* Audio system
*Navigation system
Security systems
* Side and front airbags
* Anti-lock braking system (ABS)
* Electronic Stability Control (ESC)
*Alarm
* Immobilizer
Actuators
* Electric motors (for windows, seats, etc.)
* Solenoids (for starter blocking, etc.)
* Relay
* Switches and buttons
Electronic systems
* Electronic Engine Control Unit (ECU)
* Electronic Transmission Control Unit (TCU)
*Electronic Body Control Module (BCM)
* Multiplexing system
* Keyless entry and start