MAZ car power supply system
Generator
*Type: Three-phase synchronous alternator
* Voltage: 28 volts
*Power: 80-200 amps
* Drive: belt drive from engine crankshaft
Batteries
* Quantity: 2 pieces (connected in series)
*Type: Lead Acid
* Capacity: 190-225 amp hours
* Voltage: 12 volts
Starter
* Type: lever starter with electromagnetic actuation
* Power: 5-7 kilowatts
* Voltage: 24 volts
Electrical wiring
* Type: copper single wire and multi wire
*Section: 0.5-35 square millimeters
* Insulation: PVC or rubber
* Protective devices: fuses, relays
Electrical diagrams
The power supply of the MAZ vehicle is organized according to a single-wire circuit with negative polarity. Main consumers of electricity:
* headlights
* direction indicators
* brake lights
* windshield wipers
* power windows
* heater
* cooling fan
Electrical devices and systems
* Headlights: halogen or LED
* Turn signals: LED
* Brake lights: LED
* Windshield wipers: electric or pneumatic drive
* Window lifters: electric drive
* Heater: electric or water
* Cooling fan: electric drive
Fuses and relays
Fuses and relays protect the electrical system from overloads and short circuits. The fuses are installed in mounting blocks located in the passenger compartment and under the hood. The relays are located both in mounting blocks and separately.
Body control unit (BCU)
The BUK is responsible for managing various vehicle functions and systems, including:
* central locking
* immobilizer
* power windows
* rear view mirrors
* directional stability system
Electrical System Diagnostics
Diagnostics of the electrical system of a MAZ car is carried out using a special scanner. The scanner allows you to read and decipher fault codes, as well as check the operating parameters of various sensors and actuators.