The part of the electric equipment established on the car, demands a continuous food for ensuring their working capacity or memory preservation, for example, the control unit the engine which can be lost at a detachment of plugs from the storage battery.
Therefore at a detachment of plugs from the storage battery for an exception of unforeseen consequences the following is necessary to remember each time:
– the control unit the engine will lose information brought in memory, such as operation of the engine on frequency of idling and various operational modes, and also all found codes of malfunctions. After a detachment and connection of plugs of the storage battery the control unit will need some time for restoration of all lost parameters;
– on models with electric blocking of locks surely take a key from the lock of ignition and keep it around that it was possible to open the car after connection of the storage battery and casual operation of blocking of locks.
– use the devices known as «keepers of memory». They will help to avoid some of aforementioned problems. As a rule, this device representing the battery with small capacity, turns on in the socket instead of the lighter for the period of a detachment from the storage battery. «Keepers of memory» provide a food of the control unit of the engine for saving of information and codes of the malfunctions brought in memory of the block, and also ensure functioning of hours and keep the frequencies of radio stations brought in memory of a radio receiver.
When using «the keeper of memory» keep in mind that tension moves to the electric equipment of the car therefore before work disconnect the corresponding electric chain or a component.
– cars are equipped with the systems of safety (SRS) including safety cushions and natyazhitel of seat belts. Before work about sensors of blow, the dashboard and a steering column disconnect at first negative, and then positive the plug from the storage battery and wait for 2 minutes. It will exclude unauthorized disclosure of safety cushions and operation of natyazhitel of seat belts which can put injuries.