You might need to oil the locks. Our truck does that some times. We just spray some WD40 on the catches and keep clicking them back and forth till it sinks it. As for the ajar light, the sensor inside of the door jam might be damaged. or the switch on the lights is turned on. I did that once.
SOURCE: door ajar light on
Spraying the door latch with a generous amount of WD40 the open and close the door several times will usually correct it most of the time. If not then you would have to remove the door panel and replace the dar adjar switch located on the bottom of the latch it self.
SOURCE: door ajar light on
The drivers side door switch goes bad all the time on those, try replacing or check if its sticking.the small little button int the door jam.
SOURCE: door ajar light and auto locks keep going on and off while drivin
It sounds like there is a short somewhere. Either a bad ground, pinched wire going from the door to the fuse box, or a possibly a bare wire shorting out onto something. You say that the door adjar light and the door locks are affected. Check the door switch and make sure that it isn't broken, shorted out or sticking. Function test it. If you disconnect the door switch and take a test drive does the problem still exists? Yes? Disconnect the other side. Did that cure the problem? Yes? Replace as necessary. No? The problem isn't in your door switch(s). So that much has been ruled out. These are just some areas to start trouble shooting. At first I immediately thought "Door Lock Switch," but when you mentioned that the Door Ajar light keeps going on along with the light then it leads me away from the Controls and more towards the Door light Switch usually in the jam of the door, but you didn't mention the year, make and model, so location of the switch is obscure. If the door locks are switching on and off and the door adjar light is in harmany with it then make sure the door is secure, not loose when closed allowing the door adjar switch to break the connection. These are the areas I would investigate first. Is there a significant amount of slop in the door when you push and pull on the door like it isn't secure? These are some areas to take into consideration when trouble shooting.
Good luck. I hope this helps narrow things down for you.
SOURCE: Auto Lock Activation
Deactivating/activating autolock
There are 3 methods to enable/disable this feature. One through your
dealer, the second with a power door unlock/lock sequence and the third
with the keypad.
Before following the activation or deactivation procedures, make sure
that the anti-theft system is not armed, ignition is off, and all vehicle
doors, liftgate and liftgate window are closed.
Controls and features
Power door unlock/lock
procedure
You must complete steps 1-5 within
30 seconds or the procedure will
have to be repeated. If the
procedure needs to be repeated,
you must wait 30 seconds.
1. Turn the ignition key to ON.
2. Press the power door unlock control three times.
3. Turn the ignition key from ON to OFF.
4. Press the power door unlock control three times.
5. Turn the ignition back to ON. The horn will chirp.
6. Press the unlock control, then press the lock control. The horn will
chirp once if autolock was deactivated or twice (one short and one long
chirp) if autolock was activated.
7. Turn the ignition to OFF. The horn will chirp once to confirm the
procedure is complete.
Keyless entry key pad procedure
1. Enter 5 digit entry code
2. Press and hold 7/8 control
3. Press and release 3/4 control
4. Release 7/8 control.
The user should receive a horn
chirp to indicate the system has
been disabled or a chirp followed by
a honk to indicate the system has
been enabled.
Smart unlock
This feature prevents the driver’s door from locking while the key is in
the ignition. This feature will unlock only the driver’s door if the key is in
the ignition cylinder, the driver’s door is ajar and all doors are locked
using the interior trim switch. If these conditions are met, the entire
vehicle will lock and the driver’s door will unlock within 1 second.
Controls and features
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SOURCE: my 2002 f250 door ajar light comes on and stays
i know this will sound weird but, spray WD-40 in all the door latches (door side). I mean ALOT of it .Open and close all the doors many times and that will solve the prob. :)
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