Question about 1999 Ford F150 Regular Cab

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Turn signals all my lights work, but my turn signals do not work at all...

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Open to suggestion? if you pick up repair manual it will help you familiar yourself with your truck, problems, educate, prepare you so you could give us better info to better understand,direct. thnku.

Posted on Oct 05, 2008

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My rear turn signals are not working. front turn signals work rear parking lights work brake lights work


In the diagram for rear lamp, the top wires are voltage, the bottom black wire is ground. The brown wire on either side should be tail lamps, goes hot when you turn on the headlamp switch. The other top wire on either should be for turn signal. With everything turned on, is there voltage on that wire?
Because the front works and the rear don't, possible wiring circuit problem? The voltage for turn signals comes from bcm. The bcm knows when you turn on turn signal switch, either side, then the bcm sends voltage to turn signal lamp at the rear and front.

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Brake light trouble right side brake light will not come on but both flashers work also turn signals work older ford truck what could the problem


I have to think the problem is inside the turn signal switch, a poor internal connection. You know the brake signal first goes through the turn switch before it goes to the bulbs. That is why the brake lights and rear turn signal lights share the same filament in the bulb, and the same wire going to those lights. The only difference is the turning side light is affected by the turn signal flasher, causing blinking, while the other side- the non turning side-does not go through the flasher relay, but straight to the bulb from the turn signal switch. Change your turn signal switch and I believe you will solve the problem. Let me know, okay?

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69 turn signal problem left turn signal not working. right turn signal causes both to falsh


it's the grounds if they're both flashing fast it's definitely grounds take a test light and see if its got power goes through the test light grounded to the frame and if the light comes on then it's definitely your grounds

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Turn signal,brake lights not working


I would check for voltage at the turn signal switch. The brake lights go thru the turn signal switch, except for the high mount light.

Jul 24, 2012 | Cars & Trucks

1 Answer

Rear brakelights and turn signals do not work


The turn signal and brake lights are controlled by the turn signal switch.
You did not mention parking lights so I will assume they work.

Could be a faulty turn signal switch or a wiring problem between the dash and the rear of the van.
Do the hazard flashers work on all four corners ?

Jun 27, 2012 | Ford Windstar Cars & Trucks

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Sounds like you need to replace the drivers brake/tail light.

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95' Buick regal, 3rd brake light works, tail lights work, turn signals work, stoplight switch seems to work ie 3rd brake light working, fuse is ok, changed bulbs, but no rear brake lights.


If the third brake light works and the regular ones don't, it is most likely a bad turn signal (multifunction) switch. The switch is able to kill the brakes lights to run the turn signals, and in rare circumstances does this. I've seen it several times. It could also be wiring, especially near the turn signal switch, but it is usually the switch.

Nov 25, 2009 | 1995 Buick Regal

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2001 Explorer Sport ,Rear Driver Brake Light and Turn Sig. Broke


Rear lights are double filament bulbs one side for the lights other side for the brake/turn signals so it still may be a bulb. Do u have a test light or volt meter you can check to make sure u have power there when brakes or turn signals are activated. Or just try another bulb.

Feb 12, 2009 | 2001 Ford Explorer Sport

1 Answer

Turn signal


Now replace the flasher unit! Frankster016

Oct 25, 2008 | 2002 Nissan Xterra

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