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Old 1 Week Ago   #1
Join Date: May 2018
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850 no charge warning light

Hi Folks

I've found a couple of metal boxes under the dash of my 1973 850 Spider attached to the bulkhead and am wondering what they are. The car is LHD and the boxes are to the left of the steering column.

Unfortunately the forum software will not allow me to post a picture.

My problem is that the no charge warning light does not go out despite there being `13.9v with the engine running.

There is a red/yellow wire from the alternator that goes into the box on the left and another wire that goes from this box to the warning light.

The boxes are not mentioned in the official workshop manual.

thanks
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Old 1 Week Ago   #2
Join Date: Feb 2019
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Re: 850 no charge warning light

That looks to be the battery charge indicator relay. I've attached an image of the charging circuit diagram from the 850 electrical shop manual.
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