（1）故障诊断接到该车后，将点火开关放置“ON”档，充电指示灯亮，这
是正常的，说明充电指示灯自身没有损坏。
(1) Upon receipt of the car fault diagnosis, placing the ignition switch "ON" file, charging indicator light, which
It is normal, indicating that the charge indicator itself is not damaged.
（2）启动发动机，发现充电指示灯依旧是亮的，正常情况下，它应该是灭
的。于是，怀疑可能是由于交流发电机不充电，使指示灯继电器常闭导致。 
(2) Start the engine and found that the charging indicator is still lit, under normal circumstances, it should be destroyed
The. Thus, the suspect may be due to the alternator is not charging, so that the indicator relay normally closed lead.
（3）熄火，检查交流发电机，闻到线路被烧焦的味道。拆下交流发电机进
行解体，发现内部线路烧坏，更换新的交流发电机。
(3) turn off, check the alternator, the smell of charred flavor line. Remove the alternator into
OK disintegration found burned inside wiring, replacement of the alternator.
（4）再次启动后，充电指示灯没有亮，认为故障解决。但没过一会，又闻到线路被烧焦的异味，并且发现交流发电机外接线路异常热，立刻熄火。难道还有其他故障？
(4) starts again, the charging indicator does not light, consider troubleshooting. But not after a while, they smelled the odor of charred lines, and found that the alternator circuit abnormal external heat, immediately turn off. Is there another failure?
（5）线路过热，一般是由于电流过大导致，而电流过大又可能是线路被短路或负载减少导致。
(5) Line overheating, generally due to the current is too large, and the current is too large and may be short or reducing the load line is lead. 
（6）结合交流发电机的工作电路：蓄电池负极搭铁→蓄电池→点火开关→保险丝→电压调节器→交流发电机→搭铁回路，可以看出，很有可能是由于电压调节器或交流发电机被短路导致。而充电指示灯再次启动后会亮，说明交流发电机是可以正常工作的，不可能被短路。
(6) combined alternator operating circuit: Ground the negative battery ignition switch → → → Battery voltage regulator fuse → → → Ground alternator circuit, it can be seen, most likely due to the voltage regulator or AC power machine is shorted lead. And after the charge indicator will light starts again, indicating that the alternator is working properly, and can not be short-circuited.
（7）最后考虑只有电压调节器被短路才可能导致线路过热。于是，使用万用表“电路通断”档检测电压调节器，发现电压调节器并没有被短路。这就奇怪了难道还有其他原因？
(7) Finally, consider only the voltage regulator circuit is shorted it may cause overheating. Then, using a multimeter, "Continuity" position detection voltage regulator, voltage regulator found that has not been short-circuited. This is strange Is there another reason?
（8）既然不是短路导致，那就只有负载减少导致电流过大。交流发电机是新换的，应该没问题。那就只有电压调节器了。
(8) Since it is not a short circuit cause, it is only due to reduced load current is too large. Alternator is new for, it should be no problem. It is only the voltage regulator.

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