Ignition system malfunctions:
* Faulty spark plugs
* Damaged ignition coils
* Faulty ignition distributor
* Faulty ignition module
Charging system malfunctions:
* Faulty generator
* Faulty voltage regulator
* Defective battery
* Damaged wires or connections
Lighting system malfunctions:
* Burnt out lamps
* Faulty fuses
* Faulty switches
* Damaged wiring
Starting system malfunctions:
* Faulty starter
* Faulty starter solenoid
* Damaged wiring
*Dead battery
Malfunctions of electronic control systems:
* Faulty engine control unit (ECU)
* Faulty sensors (eg crankshaft sensor, camshaft sensor)
* Damaged wires or connections
Common electrical problems:
* Short circuits
* Circuit breaks
* Damaged wiring or connections
* Corrosion or oxidation
* Poor contacts in terminals or connectors
Other problems:
* Malfunctions in the air conditioning system
* Malfunctions in the audio system
* Security system malfunctions (eg alarms)
* Malfunctions in the window lift system
* Malfunctions in the central locking system