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Forgetting to throw the switch.
Answer #2Sometimes the control panel burn out, which causes power failure to the lights. Sometimes the signal switch becomes damaged. There are other problems that can cause traffic light failures but the most common reason is the bulbs burned out. Finally, you may wish to test your fuses.
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∙ 12y ago
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What would cause a signal light to work sometimes?
I have a 2000 olds alero and the signal light only work sometimes, What would cause that?
What can cause head lights not to work no power to light?
head lights won't work, no power to them, signal works , reverse lights work
1992 Mazda Miata-tail lights work for reverse brake and turn signal only Dash light does not come on either. How do you get them to stay on?
You will need to check the ground wires. A loose ground wire can cause the lights to work sometimes and sometimes not to work.
What would cause signal lights to not work on a Ford Explorer?
Most likely turn signal flasher
What would cause the signal lights to not work in a 1995 Ford Contour?
have you checked the fuses?
Why do truck turn signal lights work but not the turn signal lights on the trailer?
There are separate fuses for trailer signal lights in main fuse panel
What cause your turn signal in the back not work when you turn on the head lights?
Check the tail light ground wires.
What will cause your rear signal lights to not work when the front headlamps are working on your Chevy venture?
it is most likely a fuse or at worst the turn signals and stop lights work through the turnsignal switch
What is wrong when brake and signal lights work but tail lights do not?
Fuse
What could cause my 1989 Mercury Topaz's brake lights to not work when all the bulbs are good?
A defective brake light switch could cause the problem. Also a defective turn signal switch could also. The brake lights work through the turn signals. It cancels the brake light so that the turn signal can work.
I have a 1989 caprce classic. The signal lights do not work. The hazzard lights work .The brake lihgts work.?
Look for either a blown fuse or replace flasher unit for the signal lights (it is separate from the hazard lights flasher unit).
Your 1979 GMC Jimmy's brake lights and hazard lights do not work but the signal lights work and so do the running and backup lights what would be causing this?
The whole turn signal arm unit needs to be replaced
