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02-28-2010, 03:53 PM
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1963 cadillac brake lights and turn signals Help Please
i had all the lights on the car working and only the front turn signals .... I cannot seems to get the rear turn signals or brake lights working... all fuses are good, bulbs are fine. I found 1 wire in the trunk that has power on and off when i put the left turn signal on?? it goes to the bulb but the bulb dosent blink.. i cant seem to find the right side one or the brake one. any way so i played around a bunch under the dash and now its gotten worse, when i turn the running lights on the turn signals turned off all together?? this is maybe due to the battery getting kind of low because i was messing with it all day and killed it??
i dont know if any one can help or provide some advise.. I have gone over the wiring diagram and cant seem to get it.. thank you very much 
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02-28-2010, 07:50 PM
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seems that u don't have a good ground for that left turn signal.
Have u checked the wires to the brake switch? 
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03-01-2010, 05:47 AM
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Definitely sounds like a bad ground out back. I can't say for sure, but generally, the right turn signal wire will be green, left will be yellow, and the brake signal goes through the same wires because it uses the same filaments in the bulbs.
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03-03-2010, 06:19 PM
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ground
yah I have done a bit of asking around and it sounds like a ground for sure but where exactly would the ground goto ?? bumper to frame or from the pig tail to frame?? I did have the back bumper off so maybe i just didnt hook it up...
the wires in the trunk are red for the left turn and green for the right i believe. the brake pedal switch is new and is hooked up fine. The brake pedal switch wouldn't affect the turn signals any way would it?? thanks for the help guys
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03-04-2010, 04:58 AM
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The brake light signal generally goes through the turn signal switch, because it uses the same circuit from the t.sig switch to the lamps.
Do your bulb sockets have two or three wires? If they are two wire sockets, they probably ground where they plug in. Make sure that has good ground.
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03-07-2010, 09:12 AM
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ground
yah the sockets need to be replaced. it is a two wire and the bulbs are so loose in there they dont make a very good connection. thanks alot for your help I think I have a grip on what needs to be done.
thanks again
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03-07-2010, 01:24 PM
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Do not overlook the possibility that your turn signal switch is bad all those lights run through it.
Vince
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