Charging System — Check

1. If the charging indicator lamp does not light when the ignition is on, first check the reliability of the generator wiring connection. If the wiring is good, check that the control lamp is not burnt out and that the lamp socket is correctly located on the dashboard. If the lamp still does not light up, check the integrity of the wiring from the generator to the lamp socket. If the test result does not show damage to the wiring, the alternator is probably damaged.

2. If the generator run indicator lamp illuminates while the engine is running, shut off the engine and check that the drive belt is intact and properly tensioned and that the generator connections are secure. If everything is in order, check the brushes and rings of the generator. If the generator still does not work, it should be replaced or contact an auto electrician for inspection and repair.

3. If a malfunction is suspected at the generator output, even when the test lamp is functioning correctly, the regulated voltage can be checked as follows.

4. Connect a voltmeter to the battery terminals and start the engine.

5. Increase the engine speed until the voltmeter reading stabilizes. The voltage should be approximately 13-14 V, but not less than 12.5 V, and not more than 14.5 V.

6. Include as much additional electrical equipment as possible (e.g. headlights, rear window heating and heater blower) and make sure the alternator maintains voltage between 13-14 volts. If necessary, slightly increase the engine speed to maintain the voltage at the specified level.

7. If the regulated voltage is out of range, the problem could be worn brushes, weak brush springs, a defective voltage regulator, a defective diode, a disconnected winding, or worn or damaged alternator rings. The alternator must be replaced or sent to a specialist for inspection and repair.