Mazda 3 since 2003
1. Operation and car maintenance
2. Engine
3. Transmission
4. Running gear
5. Steering mechanism
6. Brake system
7. Onboard electric equipment
7.1. General information
7.1.1. Definition of a source of malfunction
7.1.2. Safety locks
7.1.3. Relay
7.2. Power supply system
7.3. Lighting system
7.4. Screen wipers and stekloomyvatel
7.5. Immobilizer
7.6. Electric equipment checks
7.7. Tables
8. Body



7.1. General information

Consumers incorporate to the "plusovy" power supply a wire, and with "minus" – through a car body ("weight"). Such method allows to reduce number of wires and to simplify installation.
The system of electric equipment consists of the storage battery, the generator, a starter, consumers of the electric power and electric chains.
Headlights belong to lighting devices, back lamps, fog lights, turn indexes, lamps of illumination of registration plate and lighting devices of salon.
The storage battery is charged from the generator which is put in action by a belt from a pulley of a cranked shaft.
The starter represents the electric motor of a direct current of the mixed excitement with the electromagnetic traction relay. At start-up the traction relay enters a leading gear wheel into gearing with a gear wreath of a flywheel before the starter will receive a food from the storage battery. After engine start-up the coupling of a free wheeling disconnects a starter anchor from a gear wreath of a flywheel.
It should be noted that for prevention of short circuit and receiving burns at work with any element of electric equipment of the car always disconnect a wire from the negative plug of the storage battery.

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7. Onboard electric equipment
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7.1.1. Definition of a source of malfunction