2002 F250 Door Locks Not Working

F250 door ajar light stays on.
2002 f250 door locks not working. Radio stays on when engine is turned off and key removed. How to replace or repair door lock actuators for 1999 2007 ford f 250 350 s. Recently purchased this truck. One beep confirms the auto locks have been disabled.
The rear power door locks do not lock or unlock with the remote or with the lock switch in the front doors. 2004 f 250 crew cab rear power door locks 3 answers. Not sure where to loo read more. They make no noise at all either one.
Average failure mileage is 95 400 miles. Two beeps one short and one long signals that the auto locks have been enabled so if you receive two beeps start the process over again. Push the power door unlock button once to turn on the auto lock feature. The 2002 ford explorer has 7 problems reported for power door lock not working.
Auto door locks do not work. I checked all the door latch switches and they are all good. 3 door lock switches both quit working flashed several issues came up all at once on my 2002 f 250.