Question about 2005 Ford F-150

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Ford F150 Pickup 2005 power doors unlock but will not lock

I own a 2005 F150 XLT Ford pickup. The power door locks will unlock automatically with the door button and the key fab. Neither the door button or the key fab will lock the doors. The key fab button flashes the lights when I push the lock button but it does not lock the door. Also, the system use to lock the doors when the truck would move forward. This no longer works. I think this is some safety relay or something that has failed. The buttons are not tight working up and down. I have rebuilt other door locks before when they were tight. These are smooth and easy to move. The locking mechanism makes no noise when I push the lock at all.


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  • dennis435 Nov 13, 2008

    I want to question the door lock diagnosis. I have other info that may change the diagnosis? Sorry if I was not clear. I have a 4 door F150. All 4 doors will unlock with the driver door unlock button and the key fab. None of the four doors will lock using the drivers door lock or key fab. Why would all 4 door acutators have failed the same way at the same time? Is there a relationship between them other than a lock or unlock signal? Something has effected all 4 so I would think it is electrically where all the door mechanisms come together in the system??

  • dennis435 Nov 24, 2008

    Tracy ... I had considered removing the battery cable before but just forgot about it. I listened for the under the seat clicking sound and did not hear anything. Maybe I am hard of hearing?? At any rate I did pull the battery cable and it indeed fixed the problem. Thanks for giving me that extra confirmation of a possible fix. Four stars for you!


  • rchiste Dec 02, 2008

    I have a 2004 F-150 and three of my doors will unlock bot not lock, the driver's door is the only one that works normal. They three doors started acting up at the same time so I ruled out actuators. I pulled the fuses for the BSM and even pulled the battery cable to try to reset anything but nothing happpened I got the same results. Everything else is working properly in the truck. I'm confused

  • Anonymous Mar 12, 2014

    tried door lock/unlock(key will lock but not lock door)
    electric system off

  • Anonymous Mar 12, 2014

    e-150 2000 ford door locking will unlock but not lock

  • Anonymous Mar 18, 2014

    locks goin crazy and they do not work

  • Anonymous Mar 25, 2014

    door locks automaticly opening and closing


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I had almost the identical problem on my 2005 F150 FX4 Extended cab last weekend. The power door locks would not lock using the keypad, remotes, or door buttons. Almost all other functions worked correctly. The doors unlocked, the radio delay functioned, and the interior lights dimmed. When I used the remote the horn would beep twice indicating that a door was open even there was no message on the message center that a door was open. When I used the keypad or remote, I could hear a soft click from behind the seat. I think it was coming from the body security module or body security module - whatever Ford is calling it this year. I pulled the fuse for the Power Door Locks(BSM). As I removed it, I heard a soft click - sort of like a relay resetting. It may have come from the VSM/BSM. It may have possibly been a stuck actuator releasing. I don't think so. It wasn't that load. In any case, everything is functioning correctly now.


Posted on Nov 20, 2008

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  • DrLou Oct 10, 2010

    This was exactly the situation on my 2006 F-150 XLT

  • wisch11b20
    wisch11b20 Jul 26, 2012

    This just worked on my 2006 F-150. Thanks!!!!!

  • Jeff Zullo
    Jeff Zullo Feb 15, 2015

    Exact problem and resolution on my 2006 F150 Lariat....thanks!


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Door lock actuators

Posted on Nov 11, 2008

  • james lee Nov 13, 2008

    the body security module controls the door locks it is located on the driver rear cabin wall


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2006 f150 doors do not know that they are closed or open...followed some forums which said that it was the bsm...what do we do now that the bsm is out?

Posted on Nov 19, 2011

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