A combination switch is used to switch the main circuits of the car (lock) ignition, consisting of a contact part and a mechanical anti-theft device with a lock.
A feature of the car's electrical circuit is the connection of a number of elements (windshield washers, interior lampshades, door locks, power windows, mirror and rear window heaters, rear fog lamps, parking lights, etc.) through the electronic control unit for the electrical equipment of the passenger compartment and anti-theft alarm.
Schemes of the main electrical systems of the car are given at the end of the book.
WARNINGS: Carry out any work on the vehicle's electrical equipment only with the battery disconnected.
Disconnect or connect the battery only when the ignition is off.
When checking the circuits of electrical equipment, it is forbidden to short to «mass» wires (check the continuity of the circuits «for a spark»), as this can lead to failure of electrical components. It is forbidden to use fuses that are not provided for by the vehicle design or designed for a higher current, and also to use wire instead of fuses.
It is forbidden to disconnect the battery while the engine is running in order to avoid damage to the voltage regulator and elements of the vehicle's electronic equipment.
When carrying out electric welding work on a car, it is necessary to disconnect the wires from the terminals of the battery, generator and electronic engine control unit.
When recharging the battery using a charger, disconnect the wires of the vehicle's electrical equipment from the battery terminals.