My 2door 2001 Honda Civic EX remote entry device does not lock/unlock any of the doors. When I do press a button on the remote, there is a noise within the door that sounds as if the doors "attempt" to unlock but something catches it.

may need to be reprogramed download your workshop manual and follow instructions

Keyless Entry
The keyless entry system consists of the following:

• smart entry control(SEC)/timer module
• keyless entry remote transmitters
• power door lock actuators
• body side door power door lock actuator
• liftgate actuator
• power door lock switches
• door ajar switches
• Principles of Operation
  All doors can be locked at once by turning the door key lock switch to the locked position. An individual door can be unlocked by moving the door key lock switch to the unlocked position and turning it again within five seconds; all the doors (including the liftgate) will unlock.
  The smart lock system is designed to keep the driver from locking his keys in the car. It will lock and then unlock all the doors if the smart entry control(SEC)/timer module detects the following conditions:
  
  • The ignition key still in the ignition.
  • A front door is open.
  • A door lock switch has been pushed to the lock position.
  The panic feature has a duration of 30 seconds from the last time the PANIC button is pressed. When locking the doors from the remote transmitter, the horn chirp/lamp flash feature can be disabled or enabled by holding the LOCK and UNLOCK buttons for two seconds. The hazards will flash three times to confirm that the feature has be enabled or disabled.

The control module probably see's an input that shouldn't be there . lock Switch , door ajar etc... Don't think it has anything to do with the remote . Some part stores have a tester to see if signal from the remote is working . Or the dealer ! Take it an see if your remote is sending a signal without you pressing any buttons .
If it is you need a new one .

change battery in remote

yes each door has an actuator. my guess would lead more towards the wiring than the actuator though. you will ave some time testing to see where the power ends and go from there.

The lock is worn and the lock is not fully on so will spring up again.

if the passenger side works with the fob and the power button and not the diver it is def the driver door lock actuator.

Okay, here goes-

1. Turn Key to on position.
2. Push and hold **valet button on the stock radio.
**Valet button is skinny bar located between am/fm & cd/tape buttons on stock radio.
Door locks will cycle one time.
3. Press any button on remote one time within 20 seconds. Door locks will cycle again.
4. To program up to 4 additional remotes repeat step 3 for each additonal remote.
5. Turn key off programming is complete.

Thanks for using Fixya, please rate if this helps :)

ok here is the porcedure that i have for it

Remember , these steps must be preformed within 5 seconds of eachother also all doors should be closed, radio and lights turned off

im not sure what you mean by a bypass, you can always just not use the remotes and go into the body control computer and turn off keyless entry

1) Unlock Doors
2) Turn ignition key to "ON" position (II)
3) Press the "LOCK" or "UNLOCK" button on the remote
4) Turn the ignition key to the "OFF" position (0, I)
5) Turn the ignition key to the "ON" position
6) Press lock or unlock
7) Turn key to off position
8) on position
9) lock or unlock
10) off position
11) on position
12)lock or unlock - doors should cycle to indicate successful programming. If you only have one remote, turn ignition to off or don't touch anything. if you have 2+ remotes, go to 13:
13) lock on each transmitter that you need to program

*Steps 2-12 must be performed within 5 seconds of each other. Step 13 can be performed within 10 seconds of step 12.

sounds like the drivers side key switch has failed remove the interior door panel and there will be a switch attached to the back of the key lock cylinder or around there it should be two or three wires also check the door jamb wire harness where the door closes for any broken or damaged wires, use a vot meter and see if you get power or ground to the opposite side of the switch when you use the key to lock and unlock the door if nothing changes and there is power or ground! at this switch i would replace it, i don't think there is one but if the car has a passenger side key hole try to unlock the car from that side and see if you get the same problem -jeff