Rear light question

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12-18-2016, 01:19 PM

1970ccc

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Rear light question

My back up lights only work with the other lights off. In other words, headlights and or parking lights on, no backup lights. Is this a switch issue? If so, which one?

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12-18-2016, 02:21 PM

Iowan

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Do you have a good enough ground at tail lights?

Last edited by Iowan; 12-18-2016 at 02:25 PM.

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12-18-2016, 02:28 PM

1970ccc

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I have enough that the brake lights, turn signals, and side markers work. But sometimes the left rear brake light goes out when in reverse.

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12-18-2016, 03:05 PM

fivepoint

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As a general rule, if something electrical is acting goofy, look for a bad ground. Clean all connections and grounding points. Make sure all of the bulbs and sockets are clean and corrosion free.