Tail Light Issues
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5th Wheeling
Joined: Mar 2019
Posts: 42
Likes: 0
From: El Dorado, AR
Tail Light Issues
I have a 2012 F-150 that has been acting like the rear left tail light needs a new bulb, fast blinking when used, and will not light up when braking or locking. The light comes on when the headlights are on, but will not brighten for turning, braking, or I use the key fob to lock the truck. I've replaced the bulbs, replaced the blade fuse that is under the glove box for that tail light, and still does the same thing. Both filaments are working, just not brightening. Any ideas?
Moderator & CL
Joined: Jul 2006
Posts: 109,784
Likes: 384
From: NY Finger Lakes Region
This may sound silly but, did you replace both bulbs in the tail light? I just had one in my '10 that looked like it was operating fine and I did have hyper flash like it would when blown. It was the other bulb that was causing the issue.
Tuned
Joined: Apr 2001
Posts: 465
Likes: 24
From: Central Callifornia
Yup, electronics have changed even the simplest things so much. Used to be when a bulp went out the flasher would just stay on. Now the remaining bulb hyper-flashes.
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