+ Petrol engines
+ System of greasing of the engine
+ System of cooling of the engine
+ ignition System
+ Power supply system, carburetor, system of injection of fuel
+ Diesel engine
+ System of production of the fulfilled gases
+ Manual transmission
+ Automatic transmission
+ Suspension bracket and steering system
+ Brake system
+ Wheels and tires, body, car coloring, care of the car
- Electric equipment system
Search of malfunctions of electric system
Switch check on a current transmission
Check of the motor of a screen wiper
Verification of indexes of turn
Check of stoplights
Check of a heater of back glass
Separation and connection of cable tips
Arrangement of safety locks
Replacement of safety locks
Removal and battery installation
The battery is discharged in itself
Security measures for the generator of an alternating current
Check of tension of the generator
Removal and generator installation
Dismantling generator/replacement of coal brushes
Removal and starter installation
Check/replacement of the traction relay of a starter
+ Heater, lighting system, devices
+ Governing bodies and operation receptions
+ Electric circuits
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Electric equipment system
Search of malfunctions of electric system
At malfunction in electric system it is very important to make systematic troubleshooting. It belongs both to the fused lamp, and to the idle electromotor.
The first step — it always safety lock check if the electric contour is protected. The arrangement of safety locks is given in the table on a cover of a box of safety locks, see also Section Replacement of safety locks.
If necessary to replace a faulty safety lock, and after inclusion of the consumer of the electric power to check, whether fused a safety lock again. In this case it is necessary to find and eliminate at first malfunction, as a rule, it is a question of short circuit. It means that in any place, can be also in the device, the weight and plus are connected with each other. Second step: If the lamp does not burn or does not work at a serviceable safety lock, it is necessary to check tension giving.
Check of lamps
- To remove and examine a lamp. If the thread of an incandescence fused or weakened fastening of a glass flask in a socle, a lamp to replace.
- For determination of serviceability of a lamp arrive as follows: One plusovy wire and one wire of weight connect directly to poles of the battery and connect them to a lamp. Thus it is not important, as wires are connected to a lamp. If the lamp does not burn, to replace a lamp.
It is necessary to be convinced that contacts on a lamp and in the boss not корродированны. If necessary to smooth out contacts by an emery paper.
- If the lamp is serviceable, to insert a lamp and to include it. If the lamp does not burn, to check tension giving by the indicator. For this purpose to put the tension indicator to weight. It means: One cable of the indicator should be connected to a reliable place of weight on the engine (naked metal) or is directly connected to a pole of weight of the battery. Another plusovy щуп the indicator to connect either to the tip, or to a cable. If the indicator lights up, and the lamp all the same does not burn, weight giving on a lamp is broken. For check to connect an auxiliary wire of weight to mass of the boss of a lamp. The lamp should light up.
There are lamps which have only a current-carrying wire, for example, a parking light, internal lighting. These lamps are connected via the case directly to mass of the car.
- If on a current-carrying cable of a lamp there is no tension, i.e. the indicator does not light up, it is very probable that the switch is faulty. To check the switch on a current transmission.
Check of electromotors
- More and more functions of comfort it is carried out in the car by small electromotors. It belongs, for example, to window regulators, the hatch, the electric central locking device or the aerial electric drive.
- Each motor if necessary turns on by means of the switch, in most cases a hand. At the electric aerial management is carried out automatically by a radio receiver.
- To check a safety lock of the corresponding electromotor, if necessary to replace.
Ha electric window regulators and the central locking device before repeated inclusion is necessary to eliminate the overload reason. It can be an icing of glasses or locks, and also pollution directing glasses.
- If the new safety lock fuses at once, means, there is a short circuit.
- To define, whether there is a malfunction in the motor, to connect to it 2 auxiliary cables (diameter of 2 mm) directly from the battery. The Plusovy cable to a plusovy pole, a weight cable to a pole of weight of the electromotor. In case of doubt it is necessary to determine an arrangement of poles by the scheme. For this purpose the electromotor should be removed. All electromotors in the car eat from an onboard network (12 — 14 In). If the motor works now normally, malfunction is concluded in conducting.
Too slow work or operation of the motor with interruptions can be a sign of wear of coal brushes. In this case to replace brushes.
- If the motor works, to determine by the scheme, on what wires on it tension if the switch is switched on moves or previously ignition is included.
- To check a current-carrying wire on the electromotor by means of the indicator. As in electromotors the big current proceeds, it is possible to use the former indicator with the filament lamp. The indicator has sharp щупы which can be thrust in a cable. Thus it is possible to check tension most simply. The motors rotating to the right and to the left, for example, motors of window regulators have two plusovy poles.
- If tension is not put to the motor, means, conducting is faulty. To find and eliminate malfunction according to the scheme. Electromotors because of need for a big current, as a rule, have additional relays of inclusion. Check see in Head Removal and installation of the motor of a forward screen wiper.
- If malfunction is not found, to check the switch.
- If the cable is faulty, it is more expedient to lay new as to find a place of break of a cable very difficult.