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Turn signal flasher shot? Turn signal switch bad? Wire harness to turn signal switch (stalk) loose? are all TS bulbs good? Are you sure about fuses? Maybe a loose one, or one that looks good but is not?
Yes, it does have a flasher, although it may be a combined unit with the hazard flashers relay. So you hear the clicking of the flasher relay? That seems to indicate the relay is working properly. Have you checked the bulbs and the turn signal fuse? Any turn signal bulbs light up anywhere, front or back?
How about your brake lights, do they work? Your car may have separate, stand alone turn signals in the rear, but many American cars use the same bulb and same filament on the bulb for the brake lights and turn signals. If your merc is like this and the brake lights work, then the bulb must be good. Turn on the hazard flashers and see if all bulbs work and flash at each corner of the car. This would be the same bulb as for the turn signals. If they work, it could be a bad turn signal switch, may even be the flasher relay somehow malfunctioning, and in a few cases, a bad hazard switch can affect the turn signal switch. Check fuses and bulbs first. If you have any type of body control module that controls lights and other accessories, you may have to investigate that. I know I'm not being very helpful, just throwing out a few suggestions. Good luck.
IF TURN SIGNAL LIGHT DONT WORK SOME TIMES.CHECK FOR BLOWED OR LOOSE FUSE.CHECK TURN SIGNAL BULBS AND CHECK BULB SOCKETS FOR CORROSION.CHECK TURN SIGNAL FOR BAD GROUND.USE JUMPER WIRE BETWEEN GROUND SIDE OF THE TURN SIGNAL BULBS AND A GOOD CHASIS GROUND.IF ALL IS GOOD TURN SIGNAL SWITCH IS BAD OR FLASHERS GOING BAD.TURN SIGNAL FLASHER LOCATED ON CENTER CONSOLE SIDE PANEL GRASP THE FLASHER UNIT AND DETACH IT FROM THE FUSE BOX.IF YOU HAVE EARLY MODEL VECHICLE FLASHER UNIT LOCATED AT THE FRONT OF THE FUSE BLOCK.
pickup a test light and check all the fuse if the fuses are good then you probably have a bad signal flasher.make sure you change the signal flasher and not the emergency flasher as they look the same.
did both signal lights stop working at the same time or not,it may just be the signal flasher has gone bad,it is located under the dash by the fuse panel.if the hazard flashers work then i would say the signal flasher is bad.with the hazards on you can locate it and that is what the signal flasher looks like and it is a separate flasher,
If you can locate the hazrd flasher unit under the dash on the drivers side, the turn flasher unit should be right beside it and looks the same. Unplug and switch the 2 flashers and see if the turn signals work. The flasher unit is a silver and round. they are usually close to the stering colum. Let me know if that helps.
Check the flasher located in the fuse/relay panel. Also check for a blown fuse as well. Remember this if the 4 way flashers are not working the turn signals will not either. To test the flasher before you remove it, turn the turn signal switch to either side and with your finger touch the top of flasher. If you feel a click from flasher then it's good and you will have another problem in the wiring. Hope this will help you.
If the fuses are good and the front and rear bulbs are good, change the flasher for the turn signals, even tho the right is working. If that doesn't fix the problem, it might be in the turn sgnal switch on the steering column.
If both bulbs are good for the backup lights and fuses are good, then the backup light switch, which is screwed into the side of the transmission has to bad.
When you select left or right do any of the bulbs come on? If you select left check front and back left side if one of the bulbs did not come on the flasher will not work. Change the bulb that is out. Same with the right. If the fuse for the turn signal is good (check fuse or replace do not use visual, some appear to be good but are not).
The emergency flasher is different from the turn signal flasher. Look at manual for location of turn signal flasher. If you manually lift and lower turn signal control you may hear a clicking under the dash to locate the flasher.