Question about 2002 Ford F150 Regular Cab

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Turn signal dont work but the emerg. flashers do is it the mfs.

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Time to pull the MFs and test it. The problem could be with the arm on the MFS, not closing the contacts for the turn signals for some reason ( where the hazard button is working ).

Pull the steering wheel cover ( 3 screws from the bottom ), and pull the ign cylinder.
To pull the ign cylinder, insert the key, and turn to the run position ( do not start ).
From the bottom there are 4 holes, 3 of them had screws in them, the hole closest to the ign switch is where you insert a small punch, and release the locking tab. This will allow the cylinder to pull out of the steering wheel column.
One you have the bottom off, and the ign cylinder out, the top cover will come off easier ( don't have to worry about breaking it ).

The MFs is removed from the top. On the MFS are 2 connectors, here is the connector layout, and the test for the turn signals ( use a meter set to ohms or continuity ). Watch the connector you are testing with, you want to be on C202a
turn signal dont work but the emerg. flashers do - 3f0627d.jpg
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Posted on Nov 16, 2009

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Most Fords F150's use a single flasher with two circuits. One for emergency and one for turn signals. Sitting in the drivers seat look straight down to the gas and brake pedals. This line (direct between these two pedals) should put you close to a black box taped shut. Remove the tape and look for a 5 prong blue plastic box. Unplug it and replace it.

Fuse location 13 (the one behind the glove box) is the power for the turn signal flasher and brake lights (stop). If your stop lights are working, I would replace the flasher unit.

Posted on Nov 16, 2009

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