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Why do the brake and signal lights work but the running lights not work on ford e-350 superduty cargo van?
Dallasb
If all the running lights (front & back) are not working I'd start by checking the fuses then onto the headlight switch
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∙ 15y ago
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When my running lights are working on my trailer my turn signal lights and brake lights don't work but if running lights are off turn signal and brake lights work?
I would check the running lights for one with a short. I had the same sort of thing with my trailer and I spent way to much time troubleshooting the brake and signal wires. Turns out a running light bulb connector was grounding out on the trailer and messing it all up.
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
Why does the signal lights of the bike goes on and off?
to differentiate it from a brake light or running lights. Its the only one that BLINKS at a regular rate when looking at it from the back.
Will the brake lights and turn signal work if a 2006 Chevrolet Cobalt engine is not running?
The only thing that will work with key OFF is the brake lights,head lights and emergency flashers. Dome light will also work.
1997 Cadillac eldorado has no brake lights the brake light in the rear window works and all signal lights work just no rear brake lights?
the turn signal switch is probably bad
What is wrong when brake and signal lights work but tail lights do not?
Fuse
Brake lights do not work all the time replaced brake light switch?
If you have the same bulb for brake and signal, brake light power needs to be interrupted by the signal lights, The brake circuit has to go through the signal light switch so the problem could be there.
To lower the risk of someone running into the rear of your vehicle?
Be sure to keep the rear tail lights, brake lights and signal lights in good working order. To many times you see vehicles with lights missing.
What causes the brake light and turn signal not to work?
On most cars, the brake light and turn signal are the same element in the bulb with two elements in it. The other one is the tail lights. The brake light will often burn out sooner because it is used more and the on off is harder on the element. If you have the front amber running lights, it is almost certainly the bulbs.
Why does a bad turn signal switch effect the brake lights?
Since most brake/turn use the same filament in the bulb(1157) then if the turn signal switch is bad or offset then it will effect the brake lights.
Right side brake light and turn signal work left side nothing works and neither running light works?
Start with checking the bulbs, then the fuses. In most vehicles the brake lights and siganal lights and running lights are separate circuits. If the fuses and bulbs check okay check the wiring feeding the rear of vehicle.
What would cause brake lights and running lights not to work you have power to the brake switch?
fuse, bulbs
