Question about 2004 Ford F150
Should be two different circuits with two different fuses and flashers.
Have you checked both circuits ?
Posted on Jan 08, 2013
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Posted on Jan 02, 2017
The flasher is a small round plastic cylinder (unless replaced with a metal one) behind the left edge of the glove box that will look similar to the one in the fuse panel. The first step is to squeeze gently both sides of the open glove box and let it swing downward. It will be snapped into a metal horizontal brace just to the left of the glovebox opening by a small tab and have two wires attached. The number more than likely will be a #552 although I have seen a factory one with a Warner #224
Posted on May 13, 2009
Posted on Nov 23, 2008
If I understand you right based on your post/description, the signal lights would still turn on even if any or both of the flasher relays are removed. Should this be the case, then the signal lights are not getting the power from the flasher relays but from the brake light circuit.
Perhaps your concern is not with any of the flasher, but simply missing or loose ground more particularly with the rear lights. Perhaps you could try determining which of the wires for the brake lights and signal lights (as they come out of the light assembly) would be ground . A test and even possibly a temporary workaround is to hard wire a second ground connection from the determined ground wire of the lights and attach it to any conveniently located bolt or screw to the body. it may be to your advantage to do this on all the rear lights assembly.
Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.
Good luck and kind regards. Thank you for using FixYa.
Posted on Aug 05, 2008
Look in the fuse panel and the turn signal flasher is the big round most likely yellow or silver in the corner of fuse panel. The emergency flasher is in the back side of fuse panel right directly behind the turn signal flasher.
Remove the emergency flasher and install it in place of the turn signal flasher and see if this corrects the problem and if so get a new flasher. If this does not correct it problem will most likely be the multi-function switch.
Posted on Mar 13, 2009
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