7.4.6. Check of serviceability of functioning of a condition of components of system of start

Before starting performance of checks of functioning of a starter make sure that the low level of a charge of the battery is not the reason of the complicated start.


 PERFORMANCE ORDER

  1. If the starter does not rotate at turn of the ignition key in situation START at all, first of all, make the following elementary checks:
    1. Check the battery charge level, and also a state and reliability of fastening of wires on plugs of the battery and the traction relay of a starter;
    2. Check a condition of wires of the battery. Replace defective components;
    3. Check a condition of the battery. In case of need replace it new;
    4. Check a condition of an electrical wiring and terminal connections of a starter (see schemes of electric connections in the Head Onboard electric equipment);
    5. Check reliability of tightening of bolts of fastening of a starter;
    6. At the corresponding complete set check a condition of fusible inserts in the assembly block in a motive compartment of the car (see the Head Onboard electric equipment). If any of inserts failed, make investigation and elimination of the reasons of an overload. Also check serviceability of functioning of a chain of the switch of ignition (see the Head Onboard electric equipment);
    7. Check serviceability of functioning of the sensor switch of permission of start (model with AT) / switching off of a chain of a starter (model with RKPP). Start of the engine can be carried out only in case the lever of the selector of transfers is installed in situation "P" or "N" (AT), or the pedal of coupling (RKPP) is squeezed completely out.
    8. Check serviceability of functioning of the relay of inclusion of the starter located in the assembly block of safety locks/relay in a motive compartment of the car (see the Head Onboard electric equipment).
  2. For check of a condition of the battery include headlights, - if brightness of their luminescence in several seconds sharply falls, therefore, the battery is discharged, - make recharge (see the Head Nastroyki and routine maintenance of the car), or replace the battery (see the Section Removal, check and installation of candles of an incandescence). If headlights burn brightly, include a starter and watch lamps. If activation of a starter leads to decrease in brightness of a luminescence of headlights it means that current reaches an electric motor of a starter and malfunction is covered actually in assembly of the last. If brightness of a luminescence of headlights does not change and there is no click of operation of the traction relay, therefore, violation of serviceability of functioning of the relay, or damage to a chain of its electrical wiring takes place. If the starter turns the engine too poorly, and the level of a charge of the battery is normal, the electric motor means or is faulty, or resistance in a chain of system of start is exceeded.
  3. For check of a chain disconnect wires from the battery (including the grounding tire on a body element). Also disconnect the electrical wiring of the traction relay and a thick cable crossing point connecting the engine block to a body. Carefully smooth out all contact connections, then restore initial connection of an electrical wiring and use the voltmeter or a lamp sampler for verification of full tension of the battery on the positive wire going to the traction relay, also "ring out" a negative wire. Grease terminal knots of the battery with technical vaseline.
  4. If the battery and contact connections are found by serviceable, check a chain, having disconnected a wire from the traction relay. Connect a lamp sampler between the disconnected wire and weight (pure metal of a body or the negative plug of the battery). Include ignition, make sure of integrity of the conductor, - if the lamp burns, therefore, there are no breaks.
  5. Contacts of the involving relay can be checked if to attach the voltmeter or a control bulb between a positive wire in the place of accession it to the motor of a starter and "earth". If to include a starter, the lamp has to shine or to be the corresponding tension on the voltmeter indicator. If is not present – it is faulty the involving relay, it should be replaced.
  6. If the chain and the traction relay are serviceable, it is necessary to demolish a starter in a workshop of car service for check of a condition of its internal components and carrying out necessary recovery repair, - before make sure that the cost of repair will not exceed the cost of replaceable knot.