1. If the starter does not work, at first check up reliability of fastening of electroconducting to clips on the traction relay.
2. Connect a voltmeter or lamp between the large clamp on the traction relay (clamp 30) and a suitable grounding point. This clip is connected directly to the battery and therefore the battery voltage should be fixed or the control lamp should light up, regardless of whether the ignition is on or not.
3. Disconnect the small wire from the clamp on the traction relay, connect a voltmeter between the wire and ground Turn on the ignition, the battery voltage should be recorded. If not, check the ignition switch and associated wiring. Connect the wire.
4. Connect a voltmeter between the field terminal on the traction relay and ground. Set the ignition key to its original position, the voltmeter should show battery voltage. If there is no voltage, but during the check described in points 2 and 3 there was, the contacts inside the traction relay are defective. If battery voltage is present but the starter does not operate, damage is in the starter windings, armature or brushes.
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