The flashers and blinkers in our F250 quit working. We had a problem with the power control center (fuse block) in the cab and replaced it but still nothing. We have checked the 3 flasher units and the relays and we have no shorts. The tail lights and headlights both work. Can you help?
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you have what they call a flasher unit, its a relay of sorts ,, it makes the items you list Blink, its a small box usually located near the fuse box,, your actual switch can be fine, but if the flasher unit quit, ( which is usually the case) the blinkers won't work, ( some systems use the same flasher unit for blinkers and emergency flashers, and others use one for each )
Most GM the blinkers and flashers have seperate relays. But if see your flashers work you know the bulbs are good. So there is one thing out of the way.
The turn signal relay should be a two prong relay on the interior fuse panel. The hazard relay would be one with three. The hazard relay may be on a "convienience" center which is usually tucked way up under the dash.
The do not run off the same fuse but they do run off the same blinker. Try turning on the key, click the left/right (check both) turn signal and then operate the 4 ways on and off at the same time. Work the 4 way switch back and forth 10 to 25 times and see if you get any short winks or blinks from the system. Turn signals are usually on their own fuse in the glove box and hazard are on with the brake fuse. If this does not work, I would look at the blinker. It is possibly bad. Check each pin of the blinker and see if there is power there when you turn on the 4 ways or turn signals. Replace Blinker. Make calls to parts stores and dealer for location of this blinker.
There are 2 seperate flashers 1 for turn signals and 1 for hazard.The hazard flasher is located in the convenance center the turn flasher in the fuse box. Also seperate fuse's for each. One battery circuit for hazard Ignition for turn signals.Check fuse for hazard,if good try swapping in the turn signal flasher and see if hazards work.They use the same flasher unit.
The turn signals don't work, but the emergency flashers do? If that's the case, replace the flasher, you have 2 flashers, one for emergency (hazard) flasher, and one for the turn signals. It should be on the fuse block under the dash.
Your F--150 has 2 flashers, emergency and turn signal. Both are mounted on the fuse block under the dash. The turn signal flasher is mounted on the front of the fuse panel, the emergency flasher is mounted on the rear of the fuse panel. so replace the turn signal flasher should solve the problem. Let me know how it goes.