Manual door lock won't lock

SOURCE: 1998 Jeep Cherokee Internal locks and power locks Not working.

Open the door panels and lube all of your lock mechanisms. They tend to get stuck and it harms the locking motor. After I lube mine up, they freely move. Just spray some lithium grease and manually lock and unlock the door with the rocker until it moves very easily. You'll probably have to do this once a year like I do.

SOURCE: keyless entry won't work

I have a 1999 BMW E46 I have had a problem with the keyless entry myself. I brought the car to BMW Dealer and they told me that my Lock had an issue and that they need to repair some wiring wich would cost me $1,023.98 to find out that it was a fuse that burned out. I have replaced the 5 amp fuse with another one but it burned the fuse again so I put a 10 amp fuse and i have not had a problems since. In my car is fuse # 54 if Im not mistaken. But waht you can do is open the fuse box which is located in your glove compartment look for a diagram that shows you which fuse is where it will give you a fuse name a number where the fuse is located and how many amps fuse it is.

SOURCE: Power door locks won't unlock + tailgate won't open

your issue involves the master control switch panel on the drivers side and or the passenger side as well some how the contact inside the switch assembly has either shorted out or no longer makes contact for the unlock side of the circuit. replace the drivers side panel switchs it's either a series of switc hs or mostimes one sigle board of switchs. you are better off going to an auto parts store rather than a GM dealership this will save you quite a bit on cash on the parts. now as to the rear tailgate. if it is electronic controled and there is an issue with the master switch you can,t manually unlock it because of a safty issue built in the system. you can manually unlock the passenger compartment doors for thew same reasons of safety but doesn't apply to the tailgate. just replace the parts and this will take care of the problem

SOURCE: 2006 Dodge Caravan - ONE power door lock stopped working

i have replaced many sliding door lock actuators on these vehicles..dealer part..mostly on passenger side sliding door..also possible you have a broken wire in door track harness..follow wiring from door into what looks like a plastic chain in door track at door opening

SOURCE: the power door locks will unlock only, not lock.

I am looking for the same problem. The power door lock work only on to unlock. When I try to lock the doors I hear only a cliking three time but the doors doesn't unlock