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Bad ground (earth) on the rear light clusters. If the contacts will not clean up you may need to run another grounding wire.

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Q: Why do the back up lights flash when turn signals are on?
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My rear turn signals flash the back up lights and dim the brake lights whats the problem?

check for a loose ground wire


What is wrong when your turn signals don't work at all?

If the lights come on but do not flash then the turn signal flasher relay is defective.


1974 super beetle turn signals not working?

Replace the flasher relay if the lights come on but do not flash.


Why would a 1985 Chevy truck when you turn your turn signals on both of your tail lights flash what may be a cause of this?

Check the ground wire for the rear lights in back underneath where it attaches to the frame/body/bed. It may be broken, corroded or loose.


Chevy truck tail lights do not work and the turn signals flash too fast?

bulbs are to small Check the fuses.


What causes your 2005 crown Victoria turn signals to flash rapidly?

Usually this tells you that 1 or more lights are burnt out.


Why do Turn signals stay on steady and do not flash?

One of your turn signal bulbs is burned out. Either the front or the back.


What is the lights on the back of a car called?

On the back of a car there are tail lights, turn signals, and brake lights. Cars also have back up lights that tell people when the car is in reverse.


Both turn signals are dead and hazard lights on your 1997 Grand voyager?

If the lights come on but do not flash, replace the flasher relay. If they will not come on check the fuses.


Do airplanes have turn signals?

No, they do not have traditional turn signals but have flashing lights.


Why do the turn signals buzz and not flash but the hazard lights work on a 1991 Isuzu Rodeo if the bulbs and fuses are good?

Try replacing the turn signal flasher


Why wont turn signals work on 2007 kia spectra ex?

If the turn signal lights come on but will not flash you have a defective flasher relay. Replace the relay.