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General Information => Troubleshooting => Topic started by: Tom77 on July 03, 2012, 02:19:50 pm

Title: Alternator not charging, and no battery light.
Post by: Tom77 on July 03, 2012, 02:19:50 pm

The car is a 82 Rabbit Diesel, the alternator is good, was tested, the battery light on the dash doesn't come on, even when the key is on, only the oil light.
I replaced the dash, but same thing, no light, and no charge.
Any suggestion?

Thanks.

Title: Re: Alternator not charging, and no battery light.
Post by: R.O.R-2.0 on July 03, 2012, 03:29:23 pm

the only time the light doesnt come on (from my experiences) is because the exciter wire is un-hooked from the alt, or if the light is burnt out..

have you confirmed with a volt meter that there is no charge coming from the alt?

Title: Re: Alternator not charging, and no battery light.
Post by: Tom77 on July 04, 2012, 05:17:28 am

Yes I did, also the alt was tested at two different locations, and passed.
I don't think is the light, because I replaced the dash, with a spare.
Probably is what you said, the wire is un-hooked somewhere.
I did a continuity test from the rubber plug that goes to the alt, to the plug in the dash, the only one that failed was the blue wire.
Can I bypass the blue wire?
If so, what I have to do?

Thanks

Title: Re: Alternator not charging, and no battery light.
Post by: R.O.R-2.0 on July 04, 2012, 12:03:01 pm

Quote from: Tom77 on July 04, 2012, 05:17:28 am

Yes I did, also the alt was tested at two different locations, and passed.
I don't think is the light, because I replaced the dash, with a spare.
Probably is what you said, the wire is un-hooked somewhere.
I did a continuity test from the rubber plug that goes to the alt, to the plug in the dash, the only one that failed was the blue wire.
Can I bypass the blue wire?
If so, what I have to do?

Thanks

that blue wire is what operates the light. if the blue doesnt work, the light doesnt work..