A: Distribution & protection system (Distribution & Protection)

• Batteries (starter batteries / auxiliary)
• Fuse and relay boxes
• Busbars and main wiring
• Circuit breakers and protection devices

B: Lighting system (Lighting)

• Headlights (low / high beam)
• Rear and brake lights
• Turn signals and hazard lights
• Work lights and cargo lighting

C: Cabin electronics & ventilation (Cabin Electronics)

• Instrument cluster and gauges
• Heating and cooling system
• HVAC control unit and multimedi
• Switches and controls

D: Control systems and sensors (Control & Sensors)

• ECU / Engine Control Module
• Brake / ABS / EBS control units
• Temperature, pressure, position, and speed sensors
• Communication networks (CAN bus)

E: Safety and information systems

• Pressure / temperature alarms and warnings
• Displays and telemetry modules (optional)

F: Auxiliary loads (Auxiliary Loads)

• Electric pumps (fuel / hydraulic)
• Electric fans and blowers
• Work lighting units
• Auxiliary chargers and inverters