Common car electrical problems:
* Starting the engine:
*Dead battery
* Faulty starter
* Damaged starter wire
* Lighting:
* Burnt out lamps
* Faulty relays or switches
*Wiring problems
* Charging system:
* Faulty generator
* Damaged drive belt
* Short circuit or break in wiring
* Vehicle electrical systems:
* Faulty engine control unit (ECU)
* Damaged wiring or connections
* Problems with fuses or relays
* Car security systems:
* Faulty airbag sensors
* ABS system failure
* Damage to wiring or sensors
* Infotainment systems:
* Faulty displays
* Damaged speakers
* Problems with wiring or communication module
Vehicle specific electrical problems:
* Computer crash:
* ECU reset settings
* Sensors send incorrect signals
* Damaged or corroded wiring
* Fuse problems:
*Blown fuses due to short circuit
* Incorrectly installed fuses
* Damage to fuse holder
* Relay problems:
*Stuck relay contacts
* Faulty relay coils
* Condensation or moisture in the relay
* Damage to wiring:
* Breaks in wires
*Short circuit
* Insulation damage
*Corrosion:
*Rust or corrosion on battery terminals
* Corrosion in connections or connectors
* Moisture or water entering electrical components