回复：续：德国 VW golf 疑惑

来源: ggss11 于 2010-07-06 10:08:04 [] [旧帖] [给我悄悄话] 阅读数 : (779 bytes)

地线接触不良等于附加电阻。
结果：减少充电电流，降低电压。

有可能是发电机的问题。 特别是碳刷摩损严重时。
建议：do a charge system test and voltage drop test.
pay attention to charging current.
pay attention to negative cable on the body end, how rusty is it.
pay attention to those wires at ignition switch. if I did not remember any thing wrong.
if you want to do a current draw test.
shut off the car turn everything off.
remove negative cable from battery.
connect a current meter (电流表）between battery post and the cable the cuurent should be less than 0.1 - 0.2 A. if no remote starter or security sys etc. on it.
if more than that take main fuse one by one and watch the current change. then take off sub- fuse. it takes a lot time.

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