My remote won't unlock the doors to my 2001 subaru outback. Battery is good. I thought the sensor might be dirty but where is it?

Reset the system by removing both battery terminals
Hold the positive and negative together for 30 seconds
The. Reinstall both terminals
The system will re learn for the next 10 miles or so
If it happens again to the light
We will have to try another approach
Best of luck

Sounds has if you have a fault wrong with the Mechanism motor inside the door.?

It appears that the plastic clip on the door controls has broken . need to remove the door cover or trim card and repair/ replace clips . not verry expensive to buy

i have found on my 99 outback that if you disconnect the battery this happens usually all you have to do is use you remote door lock and unlock button a couple of times

Troubleshooting is required to inspect few parts.It can be issue with ignition switch.Its not getting off.Or issue with sensor or wiring.Or its faulty lock itself.Click the link below and follow the troubleshooting:----Driver Door will not lock or unlock with Key or Remote? http://whatisbyme.blogspot.in/2012/05/1998-toyota-landcruiser-driver-door.html
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Driver side door will not lock or unlock with Remote? http://technoanswers.blogspot.in/2012/04/2009-toyota-tundra-driver-side-door.html
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Central locking not working ? http://schematicsdiagram.blogspot.in/2012/03/this-is-how-system-operates.html

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Remote will not unlock Rear door ?
http://schematicsdiagram.blogspot.com/2011/12/remote-will-not-unlock-rear-door-on-gmc.html

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Repairing car Door lock Actuator?
http://howtobyme.blogspot.com/2011/11/repairing-car-door-lock-actuator.html

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How to Access car door panel?
http://howtobyme.blogspot.com/2011/11/how-to-access-car-door-panel.html

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Vehicle door panel components?
http://howtobyme.blogspot.com/2011/11/vehicle-door-panel-components.html

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This will help.
Thanks.

I have heard of this from various different car owners. One Mercedes owner didn't even know he had an alarm for 4 years. If you don't have the original key fob, you will have to get your solution from the nearest dealership. They can probably solve your problem over the phone. Good luck, my friend, Dana

make sure the lock solonid on all the doors are working and have not become stiff if one of them get stuck all will not work

I think you have to have the key in the ignition, and set to "ON" with the driver door open and holding the unlock button down for several seconds. At least that works on my Forester.

Regulator is bad or alternator is going out.

yes the door diarm switch is defective in that door you replaced or it doesn't have one.