* Electrical wiring: Breaks, short circuits, loose connections.
* Battery: Voltage level, capacity, cleanliness of terminals.
* Generator: Drive belt condition, power generation.
* Starter: Condition of brushes, solenoid relay.
* Fuses and relays: Correct operation, condition of contacts.
* Headlights, lanterns, signals: Operational, correct connection.
* Power windows and mirrors: Speed and smooth operation, no noise.
* Engine control unit (ECU): Wiring condition, presence of errors.
* Sensors and actuators: Correct transmission of information to the ECU and execution of commands.
* Comfort features: Air conditioning, heated seats, audio system.
