If the starter does not turn, then first check whether there is a terminal 50 of the traction relay required to draw power - no less than 8V.  If the specified voltage is supplied, you should check on the wiring lines that belong to the starter circuit.  Retractable whether the starter in the presence of a full battery voltage can be checked as follows: 
  If the starter is started normally, the fault lies in the wire to the starter.  In this case, check the starter in the removed state. 
  Test condition: the need to tighten the connection failure, and they should not be oxidized. 
  CAUSE   |   REMEDY   | 
  Starter does not rotate during actuation of the ignition starter switch   | 
|   The battery is discharged  |   Charge the battery.  | 
|   A broken line 50, which goes to the ignition starter switch, starter switch is faulty  |   Repair the open, replace faulty parts.  | 
|   Broken wire or connection;  discharged battery  |   Check battery cables and connections, measure the battery voltage, charge it if necessary.  | 
|   Inadequate flow of current due to frayed or oxidized compounds  |   Clean the poles and battery terminals.  | 
|   There is no voltage at terminal 50 (the traction relay)  |   Restore the fused connection between the battery, starter and the vehicle body.  | 
  Starter turns too slowly and the engine will not start   | 
|   The battery is discharged  |   Charge the battery.  | 
|   In the winter there is no engine power or multigrade oil  |   Fill multigrade oil.  | 
|   Inadequate flow of current due to loose or oxidized compounds  |   Clean poles and terminals of the battery and clean the connections on the starter, tighten the connection.  | 
|   The carbon brushes are not adjacent to the collector terminals in their contact surfaces are worn, torn, oily or contaminated  |   Check, clean or replace the carbon brushes, make sure the contact surfaces.  | 
|   Insufficient gap between the carbon brushes and the collector  |   Replace carbon brushes and clean the contact surface of the carbon brushes.  | 
|   Collector scratched or burned and dirty  |   Grind collector or replace an anchor.  | 
|   At terminal 50 there is no voltage (at least 8)  |   Check the ignition switch and the starter or the traction relay.  | 
|   Faulty magnetic switch  |   Replace magnetic switch.  | 
  Starter runs, and retracts the motor shaft does not rotate or rotates in jerks   | 
|   Defective pinion gear  |   Replace a gear transmission.  | 
|   Gear contaminated  |   Clean the gear.  | 
|   Defective ring gear on the flywheel  |   Modify the ring gear, if necessary, replace the flywheel.  | 
  It does not work pinion gear   | 
|   Dirty or faulty pinion gear or a steep thread  |   Clear a gear transmission, replace it if necessary.  | 
|   Faulty magnetic switch  |   Replace magnetic switch.  | 
|   Loose or broken return spring  |   Restore the return spring.  | 
  The starter continues to run after the ignition has been turned off   | 
|   Hangs traction relay, not disabled  |   Immediately turn off the ignition, replace the magnetic switch.  | 
|   Not turned off the ignition key switch and devices  |   Immediately disconnect the wires from the battery, replace the ignition key switch and devices  |