At check of system of a charging act as follows:
If the control lamp of a charging of the battery does not burn at ignition inclusion, check reliability of connection of wires to the generator, serviceability of a control lamp and integrity of its chain.
If the lamp still does not burn, check an electric chain from the generator to a lamp.
are serviceable, means, the generator is faulty and it should be replaced or repaired.
If the control lamp of a charging of the battery burns at operation of the engine, stop the engine and check a condition and a tension of a driving belt of the generator, and also connection of wires to the generator.
Regulator of tension check as follows:
Connect the voltmeter to the storage battery and start up the engine.
Increase frequency of rotation of the engine before stabilization of indications of the voltmeter which should show 12–13 In, but no more than 14 Century.
Include the maximum number of consumers of the electric power (a headlight, a heater of back glass, the heater fan).
Thus the tension developed by the generator with a regulator of tension, should make 13–14 Century.
If tension does not correspond to these values, a cause of defect can be: worn-out brushes of the generator, weak springs of brushes, faulty regulator of tension or diode, break of a winding of a stator or defective contact rings of a rotor.