2. If the lamp does not turn on at all, disconnect the multi-pin plug connector from the generator, turn on the ignition and short the clamp wire to ground "L". If the lamp lights up, the generator is faulty (check the alternator brushes and rings first). If the lamp does not light up, there is a break in the wire to the generator or the lamp is faulty. If necessary, replace the lamp. Finally, connect the generator.
3. If the lamp does not turn on at all, it must be due to a short circuit, most likely in the wire from the lamp to the generator, a short circuit in the generator is also possible.
4. If the lamp lights up but does not go out when the engine is running (brightness may vary with engine speed) Check the drive belt first. If the drive belt is in good condition and correctly adjusted, damage may be due to a faulty diode in the rectifier diode assembly. The rectifier diode assembly can be replaced separately.
5. If the lamp functions normally, but there is a problem with the charging system, check the drive belt first. Check the condition and reliability of the generator and battery wiring connections.
6. Accurate determination of generator output power requires special equipment and skill. Roughly the power can be determined using a voltmeter (range 0-15 or 0-20 V) in the following way.
7. Connect a voltmeter to the battery. Turn on the headlights, measure the voltage: it should be 12-13 V.
8. Start the engine, set the idle speed (approximately 1500 rpm). The voltmeter reading should be 13-14 V.
9. With the engine running at fast idle, turn on all possible electrical consumers (rear window defroster, heater fan, etc.) Battery voltage should be maintained between 13-14 V. Increase engine speed slightly if necessary to adjust voltage.
10. If the generator output is low or no, check the brushes. If the brushes are normal, repair the generator.
11. Sometimes a condition may occur where the generator output is excessive (that is, 14.5 V or more). This may be due to a faulty voltage regulator.