CERTAIN Dodge APPLICATIONS WILL MAKE ALL LIGHTS NOT WORK WHEN 1 IS OUT OR BROKEN.
Turn signal flasher?
Probably turn signal flasher is bad
I am assuming you have replaced any defective bulb. If none of the turn signals work, replace the turn signal flasher relay.
Same flasher for left and right signals but a different flasher for the emergency flashers.
Replace the signal flasher relay.
You di dnot mention the kind of car. Most cars have a turn signal flasher and an emergency flasher.Are you sure that you replaced the right one?
If you replaced the flasher on your 1999 Mercury Cougar and your turn signals are still not working, you should check the turn signal fuse. This fuse is located under the dashboard on the driver's side of the vehicle to the left of the steering column.
Check fuse Check bulbs--they are double filamented with the smaller for turn signals Replace turn signal flasher--Most common problem
Some cars have two flashers, one for the signals and the other for the emergency flashers. Be sure you replaced the right one. Also check the fuse the bulbs and lastly the signal switch.
replace turn signal flasher, hazard flasher is separate
the flasher that causes the turn signals to flash But where is the flasher located on this car?
Did you happen to check the turn signal flasher before you installed the switch?