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Door lock won't work. Please help!

Old 01-11-2019, 11:31 PM
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Default Door lock won't work. Please help!

Just got a 2010 f150 crewcab. The driver side rear door lock does not work. I replaced the door lock actuator and the door wiring harness. Still won't work. When I hit the unlock button the **** moves very slightly but nothing else. I'm stuck. Please help!
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Old 01-12-2019, 03:41 PM
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The contacts in the switch may be oxidized & thus making only partial contact.
Pull the drivers door switch bezel & then disconnect the wire harness.
Take the switch assembly apart using a knife blade to release the retention clips. Pull it apart & clean the silver contacts with an emery board or a ignition-points file or crocus cloth/ fine-sandpaper. When shiny, re-assemble and the window should work up/down.
Or swap the passenger side switch and drivers side switch & reconnect harness. Check for proper function. If it now works you got a bad switch assembly.
No out-of-pocket cost other than your time!
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