1. Starter refusal at ignition key turn in corresponding position can occur on any of listed below the reasons:
a) the battery Is faulty;
b) quality of electric connection between the ignition switch, the traction relay of a starter, the battery and the starter electromotor Is broken;
c) the traction relay Is faulty;
d) mechanical or electric damage of the electromotor of a starter Takes place.
2. For battery check include head headlights. If after some seconds brightness of a luminescence of headlights decreases, hence the battery is discharged and requires additional charge or replacement (the Section Check of a condition and battery gymnastics see). If brightness of a luminescence of headlights does not change, turn the ignition key - if this time brightness of a luminescence falls, hence the current reaches the electromotor and the starter is faulty actually. If brightness of headlights on former remains invariable and thus is not audible click of operation of the traction relay, malfunction actually the relay or its electric contour hence takes place. If the starter rotates too slowly, and level of a charge of the battery is in norm or malfunction actually a starter takes place, or resistance in a chain is excessively raised.
3. If there is a suspicion on malfunction in an electric chain, disconnect from the battery all wires (including the grounding tyre on a body). Also disconnect electroconducting from a starter / the traction relay and the tyre of grounding of the power unit. Carefully smooth out contact plugs, then restore initial connection of wires and by means of the voltmeter or a lamp-sampler make sure available full pressure on the plug of connection of a positive wire of the battery to the traction relay. Make sure in испрвности grounding. In order to avoid corrosion development grease клеммные connections of poles of the battery бескислотным with vaseline - remember that corrosion is the most frequent cause of infringement of quality of electric connections.
4. If the condition of the battery and all electric connections is found serviceable, check up actually a contour. Disconnect a wire from ножевой plugs of the traction relay of a starter. Connect the voltmeter between the end of a wire and well earthed point (for example, the negative plug of the battery) and make sure available of a feed circuit at the ignition key turned in position START. If a food moves regularly, the chain as it should be means. In the absence of pressure check up a chain condition.
5. Check of contact connections of the traction relay can be made by voltmeter or lamp-sampler connection between the plug of a food from the party of the relay turned to a starter and weight. At the ignition key turned in position START pressure should take place. Otherwise the traction relay is subject to replacement.
6. If the condition of an electric chain and the traction relay is found serviceable, the cause of a failure can be covered in failure of the electromotor of a starter and the further check lies out of limits of qualification of the average mechanic-fan. Before to address for the help to experts, spend small marketing, having compared the prices for accessories to cost of the new or restored block.