door ajar switch/sensor on 1999 Ford F-250 Super Duty

Where is the door ajar switch/sensor

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4 answers 1 comment
It is built into the door lock assembly, I found just keep the system lubricated and no problems
this is for an F250 Ford Super Duty correct?
how to remove old one from ford f 250
Located in the right front door jamb AC Delco #F6262A But double check this number at the parts store
informing you that a door is open