One issue may happen if the ground is poor. The current may try to run
through both filaments. It may work as a tail light, or a brake light,
as it grounds through the other filament, which is often tied to another
bulb that provides a path to ground. But when it tries to do both, it
turns off as both are getting 12V.
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some rear lights are dual filament .. for running light and turn signal.
some real lights are dual filament .. for running light and brake light.
turn on headlights ... so the running lights switch on ... and then hit
the turn switch or brake switch ... to see if it is working properly.
errr ... the grounding of the DC volts are going where it is suppose to
go ... and not somewhere else from corrosion or crack failure.
sumbuddie hopes that helps
Azazel Scratch wrote:
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