2000 4.0, Swapped BECM, no keyfob. Unable to lock with key?
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Thread: 2000 4.0, Swapped BECM, no keyfob. Unable to lock with key?

  1. #1
    FRESHMAN ROVER
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    September 10th, 2018
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    Boston, MA USA
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    2000 4.0, Swapped BECM, no keyfob. Unable to lock with key?

    The BECM in my truck was acting up, so I swapped the BECM, ECU and Instrument cluster from a different truck. The new BECM came without remotes and locks, so I don't have a matching remote.

    I have replaced the driver door actuator with a brand new part from LR before the winter, also the fuse box under the hood. I am fairly certain that I used to be able to lock the truck with key, but I don't remember whether it was before or after BECM replacement.

    Yesterday I tried to lock the truck and discovered that I am unable to lock the truck using the key. Is this expected behavior because of the BECM swap? Or is it a mechanical issue?

    I can start the truck by putting the key into the ignition, and it runs fine. Should I even try to lock it after I fix it? Will I be able to unlock?

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  3. #2
    Premium Member Escape's Avatar
    Join Date
    June 4th, 2007
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    Belgium
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    Re: 2000 4.0, Swapped BECM, no keyfob. Unable to lock with k

    You should always be able to lock or unlock the drivers door with the key as it's a mechanical system. Unless on of the rods in the linkage came off. Central locking will depend on the door lock acutuators and BECM.
    4.0 SE manual, 1997, 'Priscilla': current daily
    4.0 SE manual, 1995, 'Piper', built for offroad with tuned 4.6 on MS: lost in fire
    4.6 SE auto, 1995, 'Prue': awaiting attention
    2.5 DT manual, 1996, 'Paige': retired and stripped
    D90 TD5, 2005, 'Nessie' TR2 racer: sold

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