What's going on with the car charging failure light on

time：2024-10-10 08:02:28 Gadget Insights

What's going on with the charging failure light on

The reasons for the charging failure light are as follows: the charging indicator circuit is open or the contact is poor, such as the power cord of the charging indicator is broken, the bulb is burned out, the fuse is burned out or the plug is loose; The charging relay is faulty; faulty AC motor and voltage regulator;

1. The charging relay is faulty. For example, the closing voltage of the relay contact of the charging indicator is excessively adjusted, and the electromagnetic attraction generated by the coil is difficult to attract the contact; It means that the charging relay coil or neutral wire is open, so that there is no voltage at both ends of the relay coil, and the contacts cannot be attracted; It means that the contact of the charging relay is ablated and oxidized, and the contact is poor after being dirty. At this time, the alternator can still generate electricity when operating at a certain speed, but due to the low excitation current, the generator output current is insufficient.

2. The AC motor and voltage regulator are faulty. Such as pressure regulator contact ablation, oxidation or poor contact; When the alternator diode hits the car or the light is still on during driving, it indicates that the generator power generation voltage is lower than the battery voltage, the generator is not working or the power supply line is faulty, at this time the vehicle is running in the battery power supply, should go to the repair shop as soon as possible to repair the generator and charging line wear or fault, it should be noted that if this is the reason, it must be eliminated as soon as possible, and the generator is not allowed to run for a long time, so as not to burn out the other diodes and stator windings of the alternator.

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