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I assume the wire in question is the smaller blue wire. Yes it travels inside the car to the central electrics (fuse block) then to the instrument cluster. The cluster feed the battery light power and finds a ground through said wire at the alternator. when the alt starts charging, there is power on that wire from the altwhich doesn't let the bulb get ground and the light is out.

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โˆ™ 2015-07-16 18:14:20
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Q: In a VW Golf GL does the wiring that connects to the draw wire on the alternator or battery go through the dashboard?
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