Electrical components of the vehicle that may require replacement:
Starting and charging system:
* Battery
* Starter
* Generator
* Relay regulator
Lighting system:
* Headlights
* Tail lights
* Side turn signals
* Brake lights
*License plate lights
Electrical wiring:
* Wires
* Connections
* Fuses
* Relay
Ignition system:
* Spark plugs
* Ignition distributor (in older cars)
* Ignition coil
* Ignition module
Electronic control system:
* Electronic control unit (ECU)
* Sensors
* Drives
Electrical accessories:
* Window lifters
*Power mirrors
*Alarm
* Audio system
Reasons for replacing electrics in a car:
* Component failure due to age or wear
*Damage due to accident or overheating
* Increased current or voltage in the system
* Faulty wiring
* Oxidation or corrosion
Symptoms of the malfunction:
* Difficulty starting or no starting
* Dim or flickering lighting
* Electrical faults
* Engine performance problems
* Low battery