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there would either be a short to power in your switch / a short to power in your wiring somewhere between the battery and the bulb . somewhere in there electricity is constant and completely cuts out the selector switch. the lights turn off when you disconnect the battery because that is the only time that power is not applied to the bulbs.

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โˆ™ 2004-09-19 14:19:17
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Q: Why would the headlights of a 1990 Taurus remain on until the battery is disconnected?
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