98 camry door lock will not turn....

It sounds like the key sensor in the drivers door is malfunctioning, the drivers door is the only door that can enable/disable the alarm, if you try to unlock any of the others it will trigger the alarm.

Sometimes with my Kia I have to (without opening the door), cycle lock and unlock several times before the alarm is disarmed.

Have you tried this is succession, with all the doors locked:-

put the key in the drivers door, turn to lock and then to unlock, the alarm should disarm.

Also, if any of the door locks are jammed, the alarm will still activate when you try to unlock the drivers door.

If that fails and the alarm still activates, then it's a problem with the key sensor in the door.

have you tried spraying wd-40 into door lock?

Put the key in the ignition, turn to the on position. Open the driver's door and remove the key (keep door open). Put the key in and out 4 times (in/ out only without any turning of the key) with the key out at the end. Hit drivers side unlock button 5 times. Wait at least ten seconds and shut the driver's door. Away you go. It will stay like this unless you remove the cars battery - if so you will have to do that sequence again. Works for most if not all toyotas

Does the Driver side door lock and unlock from the lock switch inside? If not then you have a bad motor or bad connection to the lock/unlock motor inside the door.

front door? try unlocking it with the key from th eoutside, may be linkage or the door lock acuator bad.

Remove the door panel and reconnect the plug going to the front driver door lock or, if you can hear the motor trying to engage the door lock cam when you press the lock/unlock remotereconnect the door lock lever bar

I believe this was done as a safety feature. It stops a potential car hyjacker from sneaking in the passenger door when you open the driver door. I know recent Hyundai models are set up such that if you turn the key in the driver's door once it only unlocks the driver's door. If you turn it twice in quick succession it unlocks all of the doors. Maybe the Camry is set up the same way.

you have to change your lock system in the driver side. it is gone.

Try putting a little graphite lock lube in the lock to see if it is just stuck first. Does your key work on the other locks? Do you have a spare key that you haven't tried? If you need to pull the lock, use a trim removal tool to pull the door panel off, starting at the bottom removing the clips on the outer edge of the panel. Unscrew the fasteners holding the armrest on and be careful of the door handle to avoid bending the linkages. Door locks don't fail too often.

mechanism in door needs repairing ,microswitches or a connection is playing up