Turn signal bulbs and hazard bulbs are the same bulb. When the turn signal is turned on, the indicator light on the dash flashes in tune with the turn signal. When the hazard lights are turned on, an extra fuse which is live, powers the hazard flashers, even if the car is turned off.
Check the bulbs Check the flasher
If neither signal light works, the flasher may very likely be the problem. The hazard lights and the signal lights work off different flashers.
It needs checked out but both the hazard and brake lights go through the turn signal switch.
Bad bulbs? Sockets corroded?
the turn signal flasher may be the problem moast vehickles have one forturn &one for 4way
you should try checking the fuses and replacing the bulbs the fuses for thos lights should only be about a 10 or a 15
Change the turn signal flasher relay.
Try the fixes offered in the "Related Question" below... Chances are really good they'll work for you.
One of the bulbs is burnt out.
Try replacing the turn signal flasher
If you mean that the arrow inside the dash turns on and stays on then your problem is one of the left side turn signal bulbs. Test by turning on your four way (hazard) lights and observing all lights. The one that does not flash is the bulb that needs replacing.
Could be the bulbs or the fuses or the flashers or the signal switch assembly
You may have a "ground loop" problem on the left turn signal. Check the ground wire at the front and rear signal bulbs.
Either hand signal or check and replace your fuses and turn signal bulbs.
No. Only the one bulb will stop functioning. All hazards and other bulbs will continue to function. However, if one bulb is burned out it will cause the indicator on that side to blink faster, indicating that there is a problem.
In nearly every case the actual turn signal wires run from the bulbs in the turn-signal housings directly to the hazard switch. This is done to allow the hazard system access to the turn signal bulbs without having to run an additional set of wires out to each bulb just for the hazard system. To make this design work the primary turn signal system feeds the outputs it wants to send to the bulbs, located out in the turn signal housings, into the hazard switch itself. So the hazard switch is actually a multi-pole double throw switch that connects the actual turn signal wires from the bulbs to either the hazard circuit or to the turn signal circuit depending on the position of the switch control button/knob. So if you cannot operate the hazard switch because the knob broke off then it is likely stuck in hazard mode or somewhere in between and it cannot connect the bulbs wires to the turn signal system while in this state.
Possibility you may have a bad hazard flasher unit or turn signal switch. The cheapest route is to try to replace the hazard flasher unit as your first solution to the problem. Hazard flasher units should only cost you under $10 .
check the relay and switches if you dont know where they are look at owners manual or a haynes repair manual they help a lot on some stuff
Front seating area, driver side, under dash, mounted on passenger side of steering column.
A blown fuse would cause the hazard lights not to work on the 1994 Ford F150. It could also be blown bulbs causing the lights not to work.
Turn left indicator signal flashes rapidly when I use indicator, bulbs ok, no lights working
If you're sure the fuse is okay, the next thing to check is the bulbs. If the bulbs are okay, the problem could be the turn signal relay, also called the flasher relay.
Well, actually they shouldn't - if other bulbs dim when a turn signal is activated, that usually indicates a short or other fault in the circuit, or a problem with the bulbs themselves.
Answer On January 11, 2008 at 03:25 am User:S_boone said:On January 11, 2008 at 03:15 am S Boone  said:I have the same problem with my 2000 grand prix with no brake lights. I just took it to a garage today and was told it needed a turn signal assm. The price would be 780.00. I paid 89.99 for this info. and brought my car home. I had never tried the hazard lights and after reading this I went out to try my hazard lights. I found the hazard button stuck. after pushing it down forcefully the hazard lights went on and, now I have brake lights. This may be temporary I don't know, but I now have fully fuctioning lights. I had the same problem with my 99 grand prix and changed bulbs brake light swith , fuses and found out that it was a multi - function switch that was causing my brake lights not to work it was a little expensive but you need brake lights!I too had the same problem. I did the exact same thing as stated above, the hazard button was hard to push down, after I got it down, I had fully functioning brake lights. I would like to hear from the previous poster as to if this fixed his problem, or did it happen again?